lesson_07_fluid_mechanics

合集下载

流体力学常用名词中英文对照

流体力学常用名词流体动力学fluid dynamics连续介质力学mechanics of continuous介质medium流体质点fluid particle无粘性流体nonviscous fluid, inviscid连续介质假设continuous medium hypothesis流体运动学fluid kinematics水静力学hydrostatics液体静力学hydrostatics支配方程governing equation伯努利方程Bernoulli equation伯努利定理Bernonlli theorem毕奥-萨伐尔定律Biot-Savart law欧拉方程Euler equation亥姆霍兹定理Helmholtz theorem开尔文定理Kelvin theorem涡片vortex sheet库塔-茹可夫斯基条件Kutta-Zhoukowski condition 布拉休斯解Blasius solution达朗贝尔佯廖d'Alembert paradox雷诺数Reynolds number施特鲁哈尔数Strouhal number随体导数material derivative不可压缩流体incompressible fluid质量守恒conservation of mass动量守恒conservation of momentum能量守恒conservation of energy动量方程momentum equation能量方程energy equation控制体积control volume液体静压hydrostatic pressure涡量拟能enstrophy压差differential pressure流［动］flow流线stream line流面stream surface流管stream tube迹线path, path line流场flow field流态flow regime流动参量flow parameter流量flow rate, flow discharge涡旋vortex涡量vorticity涡丝vortex filament 涡线vortex line 涡面vortex surface 涡层vortex layer 涡环vortex ring 涡对vortex pair 涡管vortex tube 涡街vortex street 卡门涡街『Karman vortex street 马蹄涡horseshoe vortex 对流涡胞convective cell 卷筒涡胞roll cell 涡eddy 涡粘性eddy viscosity 环流circulation 环量circulation速度环量velocity circulation 偶极子doublet, dipole 驻点stagnation point 总压［力］total pressure 总压头total head 静压头static head 总焓total enthalpy 能量输运energy transport 速度剖面velocity profile 库埃特流Couette flow 单相流single phase flow 单组份流single-component flow 均匀流uniform flow 非均匀流nonuniform flow 二维流two-dimensional flow 三维流three-dimensional flow 准定常流quasi-steady flow 非定常流unsteady flow, non-steady flow 暂态流transient flow 周期流periodic flow 振荡流oscillatory flow 分层流stratified flow 无旋流irrotational flow 有旋流rotational flow 轴对称流axisymmetric flow 不可压缩性incompressibility 不可压缩流［动］incompressible flow浮体floating body 定倾中心metacenter 阻力drag, resistance 减阻drag reduction 表面力surface force 表面张力surface tension 毛细［管］作用capillarity 来流incoming flow 自由流free stream 自由流线free stream line 外流external flow 进口entrance, inlet 出口exit, outlet扰动disturbance, perturbation分布distribution 传播propagation 色散dispersion 弥散dispersion 附力口质量added mass ,associated mass 收缩contraction 镜象法image method无量纲参数dimensionless parameter几何相似geometric similarity 运动相似kinematic similarity 动力相似［性］dynamic similarity 平面流plane flow 势potential 势流potential flow 速度势velocity potential 复势complex potential 复速度complex velocity 流函数stream function 源source 汇sink速度［水］头velocity head拐角流corner flow空泡流cavity flow 超空泡supercavity 超空泡流supercavity flow 空气动力学aerodynamics 低速空气动力学low-speed aerodynamics 高速空气动力学high-speedaerodynamics 气动热力学aerothermodynamics 亚声速流［动］subsonic flow 跨声速流［动］transonic flow超声速流［动］supersonic flow锥形流conical flow楔流wedge flow叶栅流cascade flow非平衡流［动］non-equilibrium flow细长体slender body细长度slenderness钝头体bluff body钝体blunt body翼型airfoil翼弦chord薄翼理论thin-airfoil theory构型configuration后缘trailing edge迎角angle of attack失速stall月兑体激波detached shock wave波阻wave drag诱导阻力induced drag诱导速度induced velocity临界雷诺数critical Reynolds number前缘涡leading edge vortex附着涡bound vortex约束涡confined vortex气动中心aerodynamic center气动力aerodynamic force气动噪声aerodynamic noise气动力口热aerodynamic heating离解dissociation地面效应ground effect气体动力学gas dynamics稀疏波rarefaction wave热状态方程thermal equation of state 喷管Nozzle普朗特-迈耶流Prandtl-Meyer flow瑞利流Rayleigh flow可压缩流［动］compressible flow可压缩流体compressible fluid绝热流adiabatic flow非绝热流diabatic flow未扰动流undisturbed flow等熵流isentropic flow匀熵流homoentropic flow 兰金-于戈尼奥条件Rankine-Hugoniot condition 状态方程equation of state 量热状态方程caloric equation of state 完全气体perfect gas 拉瓦尔喷管Laval nozzle 马赫角Mach angle 马赫锥Mach cone 马赫线Mach line 马赫数Mach number 马赫波Mach wave 当地马赫数local Mach number 冲击波shock wave 激波shock wave 正激波normal shock wave 斜激波oblique shock wave 头波bow wave 附体激波attached shock wave 激波阵面shock front 激波层shock layer 压缩波compression wave 反射reflection 折射refraction 散射scattering 衍射diffraction 绕射diffraction 出口压力exit pressure 超压［强］over pressure 反压back pressure 爆炸explosion 爆轰detonation 缓燃deflagration 水动力学hydrodynamics 液体动力学hydrodynamics 泰勒不稳定性Taylor instability 盖斯特纳波Gerstner wave 斯托克斯波Stokes wave 瑞利数Rayleigh number 自由面free surface波速wave speed, wave velocity波高wave height 波歹U wave train 波群wave group 波能wave energy 表面波surface wave表面张力波capillary wave规则波regular wave不规则波irregular wave浅水波shallow water wave深水波deep water wave重力波gravity wave椭圆余弦波cnoidal wave潮波tidal wave涌波surge wave破碎波breaking wave船波ship wave非线性波nonlinear wave孤立子soliton水动［力］噪声hydrodynamic noise水击water hammer空化cavitation空化数cavitation number空蚀cavitation damage 超空化流supercavitating flow水翼hydrofoil水力学hydraulics洪水波flood wave涟漪ripple消能energy dissipation海洋水动力学marine hydrodynamics谢齐公式Chezy formula欧拉数Euler number弗劳德数Froude number水力半径hydraulic radius水力坡度hvdraulic slope高度水头elevating head水头损失head loss水位water level水跃hydraulic jump含水层aquifer排水drainage排放量discharge壅水曲线back water curve压［强水］头pressure head过水断面flow cross-section明槽流open channel flow孑1流orifice flow无压流free surface flow有压流pressure flow缓流subcritical flow急流supercritical flow渐变流gradually varied flow急变流rapidly varied flow临界流critical flow异重流density current, gravity flow堰流weir flow掺气流aerated flow含沙流sediment-laden stream降水曲线dropdown curve沉积物sediment, deposit沉［降堆］积sedimentation, deposition沉降速度settling velocity流动稳定性flow stability不稳定性instability奥尔-索末菲方程Orr-Sommerfeld equation 涡量方程vorticity equation泊肃叶流Poiseuille flow奥辛流Oseen flow剪切流shear flow粘性流［动］viscous flow层流laminar flow分离流separated flow二次流secondary flow近场流near field flow远场流far field flow滞止流stagnation flow尾流wake ［flow］回流back flow反流reverse flow射流jet自由射流free jet管流pipe flow, tube flow内流internal flow拟序结构coherent structure 猝发过程bursting process 表观粘度apparent viscosity 运动粘性kinematic viscosity 动力粘性dynamic viscosity 泊poise厘泊centipoise厘沱centistoke剪切层shear layer次层sublayer流动分离flow separation层流分离laminar separation 湍流分离turbulent separation 分离点separation point 附着点attachment point 再附reattachment再层流化relaminarization 起动涡starting vortex 驻涡standing vortex 涡旋破碎vortex breakdown 涡旋脱落vortex shedding 压［力］降pressure drop 压差阻力pressure drag 压力能pressure energy 型阻profile drag 滑移速度slip velocity 无滑移条件non-slip condition 壁剪应力skin friction, frictional drag 壁剪切速度friction velocity 磨擦损失friction loss磨擦因子friction factor耗散dissipation滞后lag相似性解similar solution局域相似local similarity 气体润滑gas lubrication 液体动力润滑hydrodynamic lubrication 浆体slurry泰勒数Taylor number纳维-斯托克斯方程Navier-Stokes equation 牛顿流体Newtonian fluid边界层理论boundary later theory 边界层方程boundary layer equation 边界层boundary layer 附面层boundary layer层流边界层laminar boundary layer 湍流边界层turbulent boundary layer 温度边界层thermal boundary layer 边界层转捩boundary layer transition 边界层分离boundary layer separation 边界层厚度boundary layer thickness 位移厚度displacement thickness 动量厚度momentum thickness 能量厚度energy thickness 焓厚度enthalpy thickness注入injection吸出suction泰勒涡Taylor vortex速度亏损律velocity defect law形状因子shape factor测速法anemometry粘度测定法visco[si] metry流动显示flow visualization油烟显示oil smoke visualization孔板流量计orifice meter频率响应frequency response油膜显示oil film visualization阴影法shadow method纹影法schlieren method烟丝法smoke wire method丝线法tuft method说明氢泡法nydrogen bubble method相似理论similarity theory相似律similarity law部分相似partial similarity定理pi theorem, Buckingham theorem静[态]校准static calibration动态校准dynamic calibration风洞wind tunnel激波管shock tube激波管风洞shock tube wind tunnel水洞water tunnel拖曳水池towing tank旋臂水池rotating arm basin扩散段diffuser测压孔pressure tap皮托管pitot tube普雷斯顿管preston tube斯坦顿管Stanton tube文丘里管Venturi tubeU 形管U-tube压强计manometer微压计micromanometer多管压强计multiple manometer静压管static [pressure]tube流速计anemometer风速管Pitot- static tube激光多普勒测速计laser Doppler anemometer,laser Doppler velocimeter 热线流速计hot-wire anemometer热膜流速计hot- film anemometer流量计flow meter粘度计visco[si] meter涡量计vorticity meter传感器transducer, sensor压强传感器pressure transducer热敏电阻thermistor示踪物tracer时间线time line脉线streak line尺度效应scale effect壁效应wall effect堵塞blockage堵寒效应blockage effect动态响应dynamic response响应频率response frequency底压base pressure菲克定律Fick law巴塞特力Basset force埃克特数Eckert number格拉斯霍夫数Grashof number努塞特数Nusselt number普朗特数prandtl number雷诺比拟Reynolds analogy施密特数schmidt number斯坦顿数Stanton number对流convection自由对流natural convection, free convec-tion 强迫对流forced convection热对流heat convection质量传递mass transfer传质系数mass transfer coefficient热量传递heat transfer传热系数heat transfer coefficient对流传热convective heat transfer辐射传热radiative heat transfer动量交换momentum transfer能量传递energy transfer传导conduction热传导conductive heat transfer热交换heat exchange临界热通量critical heat flux浓度concentration扩散diffusion扩散性diffusivity扩散率diffusivity扩散速度diffusion velocity分子扩散molecular diffusion沸腾boiling蒸发evaporation气化gasification凝结condensation成核nucleation计算流体力学computational fluid mechanics 多重尺度问题multiple scale problem伯格斯方程Burgers equation对流扩散方程convection diffusion equation KDU 方程KDV equation修正微分方程modified differential equation 拉克斯等价定理Lax equivalence theorem数值模拟numerical simulation大涡模拟large eddy simulation数值粘性numerical viscosity非线性不稳定性nonlinear instability希尔特稳定性分析Hirt stability analysis相容条件consistency conditionCFL 条件Courant- Friedrichs- Lewy condition ,CFL condition 狄里克雷边界条件Dirichlet boundary condition熵条件entropy condition远场边界条件far field boundary condition流入边界条件inflow boundary condition无反射边界条件nonreflecting boundary condition数值边界条件numerical boundary condition流出边界条件outflow boundary condition冯.诺伊曼条件von Neumann condition近似因子分解法approximate factorization method人工压缩artificial compression人工粘性artificial viscosity边界元法boundary element method配置方法collocation method能量法energy method有限体积法finite volume method流体网格法fluid in cell method,FLIC method通量校正传输法flux-corrected transport method通量矢量分解法flux vector splitting method伽辽金法Galerkin method积分方法integral method标记网格法marker and cell method, MAC method特征线法method of characteristics直线法method of lines矩量法moment method多重网格法multi- grid method板块法panel method质点网格法particle in cell method, PIC method质点法particle method预估校正法predictor-corrector method投影法projection method准谱法pseudo-spectral method随机选取法random choice method激波捕捉法shock-capturing method激波拟合法shock-fitting method谱方法spectral method稀疏矩阵分解法split coefficient matrix method不定常法time-dependent method时间分步法time splitting method变分法variational method涡方法vortex method隐格式implicit scheme显格式explicit scheme交替方向隐格式alternating direction implicit scheme, ADI scheme反扩散差分格式anti-diffusion difference scheme紧差分格式compact difference scheme守恒差分格式conservation difference scheme克兰克-尼科尔森格式Crank-Nicolson scheme杜福特-弗兰克尔格式Dufort-Frankel scheme指数格式exponential scheme戈本诺夫格式Godunov scheme高分辨率格式high resolution scheme拉克斯-温德罗夫格式Lax-Wendroff scheme蛙跳格式leap-frog scheme单调差分格式monotone difference scheme保单调差分格式monotonicity preserving diffe-rence scheme穆曼-科尔格式Murman-Cole scheme半隐格式semi-implicit scheme斜迎风格式skew-upstream scheme全变差下降格式total variation decreasing scheme TVD scheme迎风格式upstream scheme , upwind scheme计算区域computational domain物理区域physical domain影响域domain of influence依赖域domain of dependence区域分解domain decomposition 维数分解dimensional split 物理解physical solution 弱解weak solution 黎曼解算子Riemann solver 守恒型conservation form 弱守恒型weak conservation form 强守恒型strong conservation form 散度型divergence form 贴体曲线坐标body- fitted curvilinear coordi-nates ［自］适应网格［self-］ adaptive mesh 适应网格生成adaptive grid generation 自动网格生成automatic grid generation 数值网格生成numerical grid generation 交错网格staggered mesh 网格雷诺数cell Reynolds number 数植扩散numerical diffusion 数值耗散numerical dissipation 数值色散numerical dispersion 数值通量numerical flux 放大因子amplification factor 放大矩阵amplification matrix 阻尼误差damping error 离散涡discrete vortex 熵通量entropy flux 熵函数entropy function 分步法fractional step method。

自动化专业英语7unit翻译

Unit 71.物位测量概述物位测量被定义为两种媒介之间的位置的测量。

典型的媒介有气体和液体，但也可以为固体，或者是两种液体交界处。

分类物位装置在下面三种不同的原则下工作。

他们可以被分为三种主要的测量类别：1.液面高度2.压头3.通过测压原件的原材料重量测量单位0-100的直线刻度代表了物位的百分比，也是物位测量中最为常用的刻度。

在一些情况下，物位测量被转化为体积，具有了更据实际意义的指示性。

压差●测量原理这种物位测量，也被称作流体静力学，是基于液压头高度而来的。

●应用说明压差测量装置容易安装，测量范围大，并且比起外部笼式位移传感器提供了更加快速的响应时间。

在适当的修改下，比如延长隔膜密封和凸缘的连接，这些仪器将会掌控很难测量的流体（比如粘性的，泥浆的，腐蚀的，热的）。

另外，他们会有一个严格限制移动的隔膜，既简单又准确。

这些仪器的校对也十分容易（容易归零，调高会调低，调整量程），不需要什么特殊的工具。

然而，这些仪器容易受密度变化的影响并且应该应用于具有固定重力的液体或者是由于重力改变所引起的误差可以接受的地方。

压差装置需要具有通常情况下维持在外臂处的恒定接收功能。

压力测量可以被用来测量储罐物位因为静压头压力等于流体密度乘以液体高度。

注意，由于温度的变化导致液体密度的变化将带来误差。

声速/超声速●测量原理声速和超声速传感器包括一个将电能转化为声能的传送器和一个将声能转化为电能的接收器。

在声音传感器中，元件利用了回声原理，发射接近于10KHz的脉冲。

每一个脉冲发射后，传感器就检测到反射信号。

声脉冲传播和返回的时间就被电中继转换成物位指示。

超声传感器的原理也是一样的，唯一的区别就是操作频率大约为20KHz或者更大。

●应用说明这些装置都是非接触式的，可靠的，准确的。

它们穿透高湿度环境，可以被应用在充满灰尘的用途中，物有所值，没有需要移动的零件，不受密度，导电性，成分改变的影响。

然而，操作频率带来的巨大的工业噪音和振动会影响其性能，在一些设计中，灰尘也会带来误差信号。

流体机械原理专业词汇

1.1 Development and scope of fluid mechanics流体力学发展历程及研究对象1、irrigation 灌溉2 、navigation 航海3 、water power水力4 、rudimentary 基本的5 、water wheel 水车6 、aqueduct沟渠7 、Archimedes阿基米德8 、scant 不足的9、hydraulic水力的, 水压的10、Galileo伽利略11、Torricelli托里切利12、bernoulli伯努利13、divergence 分歧14、nonviscous无粘性的15、paradox 悖论16、viscous 粘性的17、apace 急速地18、empirical formulas经验公式19、empiricism 经验主义20、aeronautics 航空的21、wane 衰落22、rational理性的23、sonic boom声振24、vein静脉25、artery动脉26、kidney肾27、meteorology气象学28、astronautics太空航空学29、oceanography海洋学1.2 Physical characteristics of the fluid state流体的物理特性1、characteristic特性，特色2、molecule 分子3、variable变化的, 可变的4、cohesive 有结合力的5、compactness 紧密;坚实6、rigidity 刚性7、continuum 连续8、rigorous.[严格的, 严厉的9、tension.张力, 拉力10、compression.压力11、elastic有弹力的, 有弹性的12、infinitesimal极微小的13、shear stress 剪切应力14、tangent正切;切线15、arbitrary.随意的16、transmit.传导，传播17、isolate.隔离, 使孤立18、equilibrium.平衡19、substitute.代替, 替换21、resultant. 合力22、vector 矢量23、scalar.标量24、integration. 积分25、undiminish 未减少的26、hydraulic.液力的,液压的27、compressibility可压缩性28、thermodynamic热力学29、heat transfer 传热1.3 Compressibility,elasticity压缩性，弹性1、conversion.变换, 转化2、modulus.系数,模数3、stress-strain 应力-应变4、steepen.变得陡峭5、schematic示意的6、isothermal 等温的7、isentropic等熵的8、specific heat 比热9、adiabatic.绝热的10、simultaneously同时地11、celerity波速12、sonic.音波的, 音速的13、acoustic声音的14、perfect gas 理想气体15、mach nuber 马赫数16、subsonic.亚音速的17、supersonic.超音速的18、criterion标准, 准则1.4 Viscosity 粘度1 、chaotic混沌的;一片混乱的2 、eddy漩涡,涡流3 、infinitesimal极微小的4 、vertical垂直的, 竖的5 、distort扭曲, 使变6 、proportional 比例的, 成比例的7 、frictional摩擦的,摩擦力的8 、coefficient系数9 、implication.含义, 暗示10 、restriction.约束, 限制11 、omission.省略12 、displacement.位移13 、rheology.流变学,流变能力14 、suspension.悬浮液15 、manifest表明16 、polymer.聚合物(体)17 、versus.对18 、bingham 宾汉19 、lime water石灰水20 、dimension.量纲21 、equivalent相等的, 相当的22 、poise泊23 、random.随机的24 、collide.相撞, 碰撞25 、kinematic viscosity运动粘度26 、coaxial同轴的,共轴的27 、vanish.消失28 、torque.扭转力，转(力)矩1.5 Surface tension,capillarity1.6 Vapor pressure表面张力毛细管作用汽化压力1 、prototype原型2 、repulsion.排斥力3 、membrane薄膜, 隔膜4 、footnote脚注5 、curvature曲率,曲度6 、tiny极小的, 微小的7 、spherical球形的,球面的8 、cylindrical圆柱形的9 、mercury汞, 水银10 、affinity亲和力11 、conservative保守的12 、render.给予补偿13 、appendix附录14 、barometer.气压计15 、volatile易挥发的16 、evaporate蒸发Chapter 2 Fluid Statics 流体静力学2.1 Pressure-density-height relationships压力-密度-高度之间的关系1 、analytical解析的2 、parallel 平行的3 、derivative导数4 、differentiation微分5 、horizontal.水平的6 、integrate求…的积分7 、illustrate.（用示例、图画等）说明8 、manometer压力计9 、piezometer.压强计10 、coincide相符, 一致11 、salinity盐分,盐度12 、polytropic 多方指数13 、lapse.下降14 、troposphere.对流层15 、stratosphere平流层16 、appurtenance附件,附属物17 、violent.剧烈的, 强烈的18 、untenable站不住脚的, 不堪一击的19 、criterion.标准, 准则20 、conduction传导,导热,导电21 、neutral.中性的22 、inherently 天性地,固有地23 、diminish减少, 缩小24 、inversion.倒转, 倒置2.2 Absolute and gagepressures绝对压力和表压1 、aneroid.无液的,不利用液体的2 、barometer.气压计3 、bent弯的4 、elliptical.椭圆的5 、graduated scale分度尺6 、actuate.使动作,开动7 、vacuum真空8 、diaphragm.隔膜9 、evacuate.排空10 、deflect.偏斜11 、linkage连接12 、invert.[使倒置13 、beneath.在…的下方14 、receptacle.容器15 、foregoing在前的,在先的16 、absolute pressure绝对压力17 、graphically用图表表示2.3 Manometry测压方法1 、inevitable.不可避免的,必然发生的2 、precision.精确度, 准确(性)3 、horizontal.水平的4 、column.柱, 圆柱5 、invert.使倒置, 使反转6 、transducer.传感器,变频器;变换器7 、incline.使)倾斜, (使)偏向8 、deflection.偏斜,偏离9 、draft gage风压表10 、micromanometer微压计11 、aeronautical航空(学)的12 、carriage.滑动托架13 、actuate.使动作,开动,促使14 、reservoir水库15 、throttle.节流阀16 、negligible.可忽略的17 、vernier.游尺,游标,游标尺2.4 Fluid masses subjected toacceleration受加速度影响的流体团1 、summation总和,加在一起2 、generalize概括, 归纳3 、allow for考虑到4 、subject to使服从,使遭受,受制于5 、specific application 具体应用6 、vertically.垂直的7 、unconfined无限制的,无约束的8 、trangle三角9 、specific weight 比重10 、centripetal向心(力)的11 、kinematic运动学的,运动学上的12 、parabola 抛物线13 、symmetrical.对称的14 、blower.鼓风机15 、utilize 利用, 使用16 、centrifugal pump离心泵Chapter 3 Kinematics offluid motion流体运动学3.1 Steady and unsteadyflow.Streamlines and streamtubes定常和非定常流流线和流管1 、spatial空间的2 、trajectory.轨迹;轨道3 、variation.变化, 变动4 、introductory.引导的, 介绍的5 、elevation 高度6 、and the like等等7 、treatise专题著作, 专题论文8 、sketch.草图; 素描9 、qualitative.定性的10 、smoke tunnel 烟风洞11 、adjacent邻近的12 、concept概念; 观念13 、immerse.使浸入14 、essentially.本质上;根本上15 、coincide.同时发生3.2 One-,Two-,and Three-Dimensional flows一维，二维，三维流动1 、perpendicular.垂直的;成直角的2 、negligible.可忽略的3 、simplicity.简单4 、essentially本质上;根本上5 、weir.[wiə]堰6 、throughout自始至终;在…期间7 、reality.现实, 实际8 、to the extent到……的程度9 、end effect末端作用10 、axisymmetric轴对称的11 、depict.描绘; 描画12 、stream surface流面13 、superficially.表面(上)的14 、resemble像…, 类似于15 、fuselage.['fju:zilɑ:ʒ](飞机的)机身16 、obscure.使…模糊不清; 掩盖17 、hereinafter以下,在下文中3.3 Velocity and acceleration速度和加速度1 、scalar.数量,标量2 、curvature.曲率,曲度3 、generalization一般化, 普通化,4 、mathematically算术地5 、in terms of在....方面6 、partial derivative偏导7 、polar coordinate极坐标8 、acceleration 加速3.4 Equation of Continuity One-dimensional steady flow连续性方程：一维定常流1 、control volume控制体2 、comprise.包含, 包括3 、multiplication.乘法4 、division.除(法)5 、concise]简明的6 、product 乘积7 、invalidate使无效;使作废8 、fictitious.假设的, 假装的9 、hatched area画有阴影线的区域10 、planimeter.求积计3.5 Equation of continuity- Two dimensionla steady flow1、conservation守恒2、integral数学]积分的；完整的3、incremental 增加的，增值的4、flowrate 流量5、incompressible flow不可压缩流体6、polar coordinate极坐标。

Lesson 7

(b) Variables related to the type of die loading加载 , including speed of loading加载速度 , i.e., impact冲击 or gradual contact time渐接触时间 between dies and deforming metal (this contact time is especially important in hot forming), maximum load and pressure on the dies, maximum and minimum die temperatures, and number of loading cycles循环载荷次数 to which定语从句 the dies will be subjected承受 .
After repeated cycling反复循环 in this manner, fatigue will cause formation形成 of a crack pattern裂纹花纹 that 定语从句is recognized as认为heat checking 热龟裂 .
Die breakage模具破裂 or cracking裂纹 is due to mechanical fatigue机械疲劳 and occurs in cases万一… 情况 where the dies are overloaded过载 and local stresses局部应力 are high.
Die life and die failure are greatly affected by受…影响 the mechanical properties机械性能 of the die materials under the conditions在…条件下 that（定语从句） exist in a given给定的 deformation process.

力学,流体力学,固体力学词汇英语翻译

力学,流体力学,固体力学词汇英语翻译力学，流体力学，固体力学英语词汇翻译牛顿力学Newtonian mechanics经典力学classical mechanics静力学statics运动学kinematics动力学dynamics动理学kinetics宏观力学macroscopic mechanics,macromechanics 细观力学mesomechanics微观力学microscopic mechanics,micromechanics 一般力学general mechanics固体力学solid mechanics流体力学fluid mechanics理论力学theoretical mechanics应用力学applied mechanics工程力学engineering mechanics实验力学experimental mechanics计算力学computational mechanics理性力学rational mechanics物理力学physical mechanics地球动力学geodynamics力force作用点point of action作用线line of action力系system of forces力系的简化reduction of force system等效力系equivalent force system刚体rigid body力的可传性transmissibility of force平行四边形定则parallelogram rule力三角形force triangle力多边形force polygon零力系null-force system平衡equilibrium力的平衡equilibrium of forces平衡条件equilibrium condition平衡位置equilibrium position平衡态equilibrium state分析力学analytical mechanics拉格朗日乘子Lagrange multiplier拉格朗日[量] Lagrangian拉格朗日括号Lagrange bracket循环坐标cyclic coordinate循环积分cyclic integral哈密顿[量] Hamiltonian哈密顿函数Hamiltonian function正则方程canonical equation正则摄动canonical perturbation正则变换canonical transformation正则变量canonical variable哈密顿原理Hamilton principle作用量积分action integral哈密顿--雅可比方程Hamilton-Jacobi equation 作用--角度变量action-angle variables阿佩尔方程Appell equation劳斯方程Routh equation拉格朗日函数Lagrangian function诺特定理Noether theorem泊松括号poisson bracket边界积分法boundary integral method 并矢dyad运动稳定性stability of motion轨道稳定性orbital stability李雅普诺夫函数Lyapunov function渐近稳定性asymptotic stability结构稳定性structural stability久期不稳定性secular instability弗洛凯定理Floquet theorem倾覆力矩capsizing moment自由振动free vibration固有振动natural vibration暂态transient state环境振动ambient vibration反共振anti-resonance衰减attenuation库仑阻尼Coulomb damping同相分量in-phase component非同相分量out-of-phase component超调量overshoot参量[激励]振动parametric vibration模糊振动fuzzy vibration临界转速critical speed of rotation阻尼器damper半峰宽度half-peak width集总参量系统lumped parameter system 相平面法phase plane method相轨迹phase trajectory等倾线法isocline method跳跃现象jump phenomenon负阻尼negative damping达芬方程Duffing equation希尔方程Hill equationKBM方法KBM method, Krylov-Bogoliu-bov-Mitropol'skii method 马蒂厄方程Mathieu equation平均法averaging method组合音调combination tone解谐detuning耗散函数dissipative function硬激励hard excitation硬弹簧hard spring, hardening spring谐波平衡法harmonic balance method久期项secular term自激振动self-excited vibration分界线separatrix亚谐波subharmonic软弹簧soft spring ,softening spring软激励soft excitation邓克利公式Dunkerley formula瑞利定理Rayleigh theorem分布参量系统distributed parameter system优势频率dominant frequency模态分析modal analysis固有模态natural mode of vibration同步synchronization超谐波ultraharmonic范德波尔方程van der pol equation频谱frequency spectrum基频fundamental frequencyWKB方法WKB method, Wentzel-Kramers-Brillouin method 缓冲器buffer风激振动aeolian vibration嗡鸣buzz倒谱cepstrum颤动chatter蛇行hunting阻抗匹配impedance matching机械导纳mechanical admittance机械效率mechanical efficiency机械阻抗mechanical impedance随机振动stochastic vibration, random vibration隔振vibration isolation减振vibration reduction应力过冲stress overshoot喘振surge摆振shimmy起伏运动phugoid motion起伏振荡phugoid oscillation驰振galloping陀螺动力学gyrodynamics陀螺摆gyropendulum陀螺平台gyroplatform陀螺力矩gyroscoopic torque陀螺稳定器gyrostabilizer陀螺体gyrostat惯性导航inertial guidance姿态角attitude angle方位角azimuthal angle舒勒周期Schuler period机器人动力学robot dynamics多体系统multibody system多刚体系统multi-rigid-body system机动性maneuverability凯恩方法Kane method转子[系统]动力学rotor dynamics转子[一支承一基础]系统rotor-support-foundation system 静平衡static balancing动平衡dynamic balancing静不平衡static unbalance动不平衡dynamic unbalance现场平衡field balancing不平衡unbalance不平衡量unbalance互耦力cross force挠性转子flexible rotor分频进动fractional frequency precession半频进动half frequency precession油膜振荡oil whip转子临界转速rotor critical speed自动定心self-alignment亚临界转速subcritical speed涡动whirl连续过程continuous process碰撞截面collision cross section通用气体常数conventional gas constant燃烧不稳定性combustion instability稀释度dilution完全离解complete dissociation火焰传播flame propagation组份constituent碰撞反应速率collision reaction rate 燃烧理论combustion theory浓度梯度concentration gradient阴极腐蚀cathodic corrosion火焰速度flame speed火焰驻定flame stabilization火焰结构flame structure着火ignition湍流火焰turbulent flame层流火焰laminar flame燃烧带burning zone渗流flow in porous media, seepage 达西定律Darcy law赫尔-肖流Hele-Shaw flow毛[细]管流capillary flow过滤filtration爪进fingering不互溶驱替immiscible displacement 不互溶流体immiscible fluid互溶驱替miscible displacement互溶流体miscible fluid迁移率mobility流度比mobility ratio渗透率permeability孔隙度porosity多孔介质porous medium比面specific surface迂曲度tortuosity空隙void空隙分数void fraction注水water flooding可湿性wettability地球物理流体动力学geophysical fluid dynamics 物理海洋学physical oceanography大气环流atmospheric circulation海洋环流ocean circulation海洋流ocean current旋转流rotating flow平流advection埃克曼流Ekman flow埃克曼边界层Ekman boundary layer大气边界层atmospheric boundary layer大气-海洋相互作用atmosphere-ocean interaction埃克曼数Ekman number罗斯贝数Rossby unmber罗斯贝波Rossby wave斜压性baroclinicity正压性barotropy内磨擦internal friction海洋波ocean wave盐度salinity环境流体力学environmental fluid mechanics斯托克斯流Stokes flow羽流plume理查森数Richardson number污染源pollutant source污染物扩散pollutant diffusion噪声noise噪声级noise level噪声污染noise pollution排放物effulent工业流体力学industrical fluid mechanics流控技术fluidics轴向流axial flow并向流co-current flow对向流counter current flow横向流cross flow螺旋流spiral flow旋拧流swirling flow滞后流after flow混合层mixing layer抖振buffeting风压wind pressure附壁效应wall attachment effect, Coanda effect简约频率reduced frequency爆炸力学mechanics of explosion终点弹道学terminal ballistics动态超高压技术dynamic ultrahigh pressure technique 流体弹塑性体hydro-elastoplastic medium热塑不稳定性thermoplastic instability空中爆炸explosion in air地下爆炸underground explosion水下爆炸underwater explosion电爆炸discharge-induced explosion激光爆炸laser-induced explosion核爆炸nuclear explosion点爆炸point-source explosion殉爆sympathatic detonation强爆炸intense explosion粒子束爆炸explosion by beam radiation 聚爆implosion起爆initiation of explosion爆破blasting霍普金森杆Hopkinson bar电炮electric gun电磁炮electromagnetic gun爆炸洞explosion chamber轻气炮light gas gun马赫反射Mach reflection基浪base surge成坑cratering能量沉积energy deposition爆心explosion center爆炸当量explosion equivalent火球fire ball爆高height of burst蘑菇云mushroom侵彻penetration规则反射regular reflection崩落spallation应变率史strain rate history流变学rheology聚合物减阻drag reduction by polymers挤出[物]胀大extrusion swell, die swell无管虹吸tubeless siphon剪胀效应dilatancy effect孔压[误差]效应hole-pressure[error]effect 剪切致稠shear thickening剪切致稀shear thinning触变性thixotropy反触变性anti-thixotropy超塑性superplasticity粘弹塑性材料viscoelasto-plastic material 滞弹性材料anelastic material本构关系constitutive relation麦克斯韦模型Maxwell model沃伊特-开尔文模型Voigt-Kelvin model宾厄姆模型Bingham model奥伊洛特模型Oldroyd model幂律模型power law model应力松驰stress relaxation应变史strain history应力史stress history记忆函数memory function衰退记忆fading memory应力增长stress growing粘度函数voscosity function相对粘度relative viscosity复态粘度complex viscosity拉伸粘度elongational viscosity拉伸流动elongational flow第一法向应力差first normal-stress difference第二法向应力差second normal-stress difference 德博拉数Deborah number魏森贝格数Weissenberg number动态模量dynamic modulus振荡剪切流oscillatory shear flow宇宙气体动力学cosmic gas dynamics等离[子]体动力学plasma dynamics电离气体ionized gas行星边界层planetary boundary layer阿尔文波Alfven wave泊肃叶-哈特曼流] Poiseuille-Hartman flow哈特曼数Hartman number生物流变学biorheology生物流体biofluid生物屈服点bioyield point生物屈服应力bioyield stress电气体力学electro-gas dynamics铁流体力学ferro-hydrodynamics血液流变学hemorheology, blood rheology血液动力学hemodynamics磁流体力学magneto fluid mechanics磁流体动力学magnetohydrodynamics, MHD磁流体动力波magnetohydrodynamic wave磁流体流magnetohydrodynamic flow磁流体动力稳定性magnetohydrodynamic stability 生物力学biomechanics生物流体力学biological fluid mechanics生物固体力学biological solid mechanics宾厄姆塑性流Bingham plastic flow开尔文体Kelvin body沃伊特体Voigt body可贴变形applicable deformation可贴曲面applicable surface边界润滑boundary lubrication液膜润滑fluid film lubrication向心收缩功concentric work离心收缩功eccentric work关节反作用力joint reaction force微循环力学microcyclic mechanics微纤维microfibril渗透性permeability生理横截面积physiological cross-sectional area 农业生物力学agrobiomechanics纤维度fibrousness硬皮度rustiness胶粘度gumminess粘稠度stickiness嫩度tenderness渗透流osmotic flow易位流translocation flow蒸腾流transpirational flow过滤阻力filtration resistance压扁wafering风雪流snow-driving wind停滞堆积accretion遇阻堆积encroachment沙漠地面desert floor流沙固定fixation of shifting sand流动阈值fluid threshold连续介质力学mechanics of continuous media 介质medium 流体质点fluid particle无粘性流体nonviscous fluid, inviscid fluid连续介质假设continuous medium hypothesis流体运动学fluid kinematics水静力学hydrostatics液体静力学hydrostatics支配方程governing equation伯努利方程Bernoulli equation伯努利定理Bernonlli theorem毕奥-萨伐尔定律Biot-Savart law欧拉方程Euler equation亥姆霍兹定理Helmholtz theorem开尔文定理Kelvin theorem涡片vortex sheet库塔-茹可夫斯基条件Kutta-Zhoukowski condition 布拉休斯解Blasius solution达朗贝尔佯廖d'Alembert paradox雷诺数Reynolds number施特鲁哈尔数Strouhal number随体导数material derivative不可压缩流体incompressible fluid质量守恒conservation of mass动量守恒conservation of momentum能量守恒conservation of energy动量方程momentum equation能量方程energy equation控制体积control volume液体静压hydrostatic pressure涡量拟能enstrophy压差differential pressure流[动] flow流线stream line流面stream surface流管stream tube迹线path, path line流场flow field流态flow regime流动参量flow parameter流量flow rate, flow discharge 涡旋vortex涡量vorticity涡丝vortex filament涡线vortex line涡面vortex surface涡层vortex layer涡环vortex ring涡对vortex pair涡管vortex tube涡街vortex street卡门涡街Karman vortex street 马蹄涡horseshoe vortex对流涡胞convective cell卷筒涡胞roll cell涡eddy涡粘性eddy viscosity环流circulation环量circulation速度环量velocity circulation 偶极子doublet, dipole驻点stagnation point总压[力] total pressure总压头total head静压头static head总焓total enthalpy能量输运energy transport速度剖面velocity profile库埃特流Couette flow单相流single phase flow单组份流single-component flow均匀流uniform flow非均匀流nonuniform flow二维流two-dimensional flow三维流three-dimensional flow准定常流quasi-steady flow非定常流unsteady flow, non-steady flow 暂态流transient flow 周期流periodic flow振荡流oscillatory flow分层流stratified flow无旋流irrotational flow有旋流rotational flow轴对称流axisymmetric flow不可压缩性incompressibility不可压缩流[动] incompressible flow浮体floating body定倾中心metacenter阻力drag, resistance减阻drag reduction表面力surface force表面张力surface tension毛细[管]作用capillarity来流incoming flow自由流free stream自由流线free stream line外流external flow进口entrance, inlet出口exit, outlet扰动disturbance, perturbation分布distribution传播propagation色散dispersion弥散dispersion附加质量added mass ,associated mass 收缩contraction镜象法image method无量纲参数dimensionless parameter几何相似geometric similarity运动相似kinematic similarity动力相似[性] dynamic similarity平面流plane flow势potential势流potential flow速度势velocity potential复势complex potential复速度complex velocity流函数stream function源source汇sink速度[水]头velocity head拐角流corner flow空泡流cavity flow超空泡supercavity超空泡流supercavity flow空气动力学aerodynamics低速空气动力学low-speed aerodynamics 高速空气动力学high-speed aerodynamics 气动热力学aerothermodynamics 亚声速流[动] subsonic flow跨声速流[动] transonic flow超声速流[动] supersonic flow锥形流conical flow楔流wedge flow叶栅流cascade flow非平衡流[动] non-equilibrium flow 细长体slender body细长度slenderness钝头体bluff body钝体blunt body翼型airfoil翼弦chord薄翼理论thin-airfoil theory构型configuration后缘trailing edge迎角angle of attack失速stall脱体激波detached shock wave波阻wave drag诱导阻力induced drag诱导速度induced velocity临界雷诺数critical Reynolds number 前缘涡leading edge vortex附着涡bound vortex约束涡confined vortex气动中心aerodynamic center气动力aerodynamic force气动噪声aerodynamic noise气动加热aerodynamic heating离解dissociation地面效应ground effect气体动力学gas dynamics稀疏波rarefaction wave热状态方程thermal equation of state喷管Nozzle普朗特-迈耶流Prandtl-Meyer flow瑞利流Rayleigh flow可压缩流[动] compressible flow可压缩流体compressible fluid绝热流adiabatic flow非绝热流diabatic flow未扰动流undisturbed flow等熵流isentropic flow匀熵流homoentropic flow兰金-于戈尼奥条件Rankine-Hugoniot condition 状态方程equation of state量热状态方程caloric equation of state完全气体perfect gas拉瓦尔喷管Laval nozzle马赫角Mach angle马赫锥Mach cone马赫线Mach line马赫数Mach number马赫波Mach wave当地马赫数local Mach number冲击波shock wave激波shock wave正激波normal shock wave斜激波oblique shock wave头波bow wave附体激波attached shock wave激波阵面shock front激波层shock layer压缩波compression wave反射reflection折射refraction散射scattering衍射diffraction绕射diffraction出口压力exit pressure超压[强] over pressure反压back pressure爆炸explosion爆轰detonation缓燃deflagration水动力学hydrodynamics液体动力学hydrodynamics泰勒不稳定性Taylor instability盖斯特纳波Gerstner wave斯托克斯波Stokes wave瑞利数Rayleigh number自由面free surface波速wave speed, wave velocity 波高wave height 波列wave train波群wave group波能wave energy表面波surface wave表面张力波capillary wave规则波regular wave不规则波irregular wave浅水波shallow water wave深水波deep water wave重力波gravity wave椭圆余弦波cnoidal wave潮波tidal wave涌波surge wave破碎波breaking wave船波ship wave非线性波nonlinear wave孤立子soliton水动[力]噪声hydrodynamic noise 水击water hammer 空化cavitation空化数cavitation number空蚀cavitation damage超空化流supercavitating flow水翼hydrofoil水力学hydraulics洪水波flood wave涟漪ripple消能energy dissipation海洋水动力学marine hydrodynamics谢齐公式Chezy formula欧拉数Euler number弗劳德数Froude number水力半径hydraulic radius水力坡度hvdraulic slope高度水头elevating head水头损失head loss水位water level水跃hydraulic jump含水层aquifer排水drainage排放量discharge壅水曲线back water curve压[强水]头pressure head过水断面flow cross-section明槽流open channel flow孔流orifice flow无压流free surface flow有压流pressure flow缓流subcritical flow急流supercritical flow渐变流gradually varied flow急变流rapidly varied flow临界流critical flow异重流density current, gravity flow堰流weir flow掺气流aerated flow含沙流sediment-laden stream降水曲线dropdown curve沉积物sediment, deposit沉[降堆]积sedimentation, deposition沉降速度settling velocity流动稳定性flow stability不稳定性instability奥尔-索末菲方程Orr-Sommerfeld equation 涡量方程vorticity equation泊肃叶流Poiseuille flow奥辛流Oseen flow剪切流shear flow粘性流[动] viscous flow层流laminar flow分离流separated flow二次流secondary flow近场流near field flow远场流far field flow滞止流stagnation flow尾流wake [flow]回流back flow反流reverse flow射流jet自由射流free jet管流pipe flow, tube flow内流internal flow拟序结构coherent structure 猝发过程bursting process表观粘度apparent viscosity 运动粘性kinematic viscosity 动力粘性dynamic viscosity泊poise厘泊centipoise厘沱centistoke剪切层shear layer次层sublayer流动分离flow separation层流分离laminar separation 湍流分离turbulent separation 分离点separation point附着点attachment point再附reattachment再层流化relaminarization起动涡starting vortex驻涡standing vortex涡旋破碎vortex breakdown涡旋脱落vortex shedding压[力]降pressure drop压差阻力pressure drag压力能pressure energy型阻profile drag滑移速度slip velocity无滑移条件non-slip condition壁剪应力skin friction, frictional drag壁剪切速度friction velocity磨擦损失friction loss磨擦因子friction factor耗散dissipation滞后lag相似性解similar solution局域相似local similarity气体润滑gas lubrication液体动力润滑hydrodynamic lubrication浆体slurry泰勒数Taylor number纳维-斯托克斯方程Navier-Stokes equation 牛顿流体Newtonian fluid边界层理论boundary later theory边界层方程boundary layer equation边界层boundary layer附面层boundary layer层流边界层laminar boundary layer湍流边界层turbulent boundary layer温度边界层thermal boundary layer边界层转捩boundary layer transition边界层分离boundary layer separation边界层厚度boundary layer thickness 位移厚度displacement thickness能量厚度energy thickness焓厚度enthalpy thickness注入injection吸出suction泰勒涡Taylor vortex速度亏损律velocity defect law形状因子shape factor测速法anemometry粘度测定法visco[si] metry流动显示flow visualization油烟显示oil smoke visualization孔板流量计orifice meter频率响应frequency response油膜显示oil film visualization阴影法shadow method纹影法schlieren method烟丝法smoke wire method丝线法tuft method氢泡法nydrogen bubble method相似理论similarity theory相似律similarity law部分相似partial similarity定理pi theorem, Buckingham theorem 静[态]校准static calibration动态校准dynamic calibration风洞wind tunnel激波管shock tube激波管风洞shock tube wind tunnel水洞water tunnel拖曳水池towing tank旋臂水池rotating arm basin扩散段diffuser测压孔pressure tap皮托管pitot tube普雷斯顿管preston tube斯坦顿管Stanton tube文丘里管Venturi tubeU形管U-tube压强计manometer微压计micromanometer多管压强计multiple manometer静压管static [pressure]tube流速计anemometer风速管Pitot- static tube激光多普勒测速计laser Doppler anemometer, laser Doppler velocimeter 热线流速计hot-wire anemometer热膜流速计hot- film anemometer流量计flow meter粘度计visco[si] meter涡量计vorticity meter传感器transducer, sensor压强传感器pressure transducer热敏电阻thermistor示踪物tracer时间线time line脉线streak line尺度效应scale effect壁效应wall effect堵塞blockage堵寒效应blockage effect动态响应dynamic response响应频率response frequency底压base pressure菲克定律Fick law巴塞特力Basset force埃克特数Eckert number格拉斯霍夫数Grashof number努塞特数Nusselt number普朗特数prandtl number雷诺比拟Reynolds analogy施密特数schmidt number斯坦顿数Stanton number对流convection自由对流natural convection, free convec-tion 强迫对流forced convection热对流heat convection质量传递mass transfer传质系数mass transfer coefficient热量传递heat transfer传热系数heat transfer coefficient对流传热convective heat transfer辐射传热radiative heat transfer动量交换momentum transfer能量传递energy transfer传导conduction热传导conductive heat transfer热交换heat exchange临界热通量critical heat flux浓度concentration扩散diffusion扩散性diffusivity扩散率diffusivity扩散速度diffusion velocity分子扩散molecular diffusion沸腾boiling蒸发evaporation气化gasification凝结condensation成核nucleation计算流体力学computational fluid mechanics 多重尺度问题multiple scale problem伯格斯方程Burgers equation对流扩散方程convection diffusion equation KDU方程KDV equation修正微分方程modified differential equation。

机械专业英语词汇

机械专业英语词汇陶瓷 ceramics合成纤维 synthetic fibre电化学腐蚀 electrochemical corrosion车架 automotive chassis悬架 suspension转向器 redirector变速器 speed changer板料冲压 sheet metal parts孔加工 spot facing machining车间 workshop工程技术人员 engineer气动夹紧 pneuma lock数学模型 mathematical model画法几何 descriptive geometry机械制图 Mechanical drawing投影 projection视图 view剖视图 profile chart标准件 standard component零件图 part drawing装配图 assembly drawing尺寸标注 size marking技术要求 technical requirements刚度 rigidity内力 internal force位移 displacement截面 section疲劳极限 fatigue limit断裂 fracture塑性变形 plastic distortion脆性材料 brittleness material刚度准则 rigidity criterion垫圈 washer垫片 spacer直齿圆柱齿轮 straight toothed spur gear 斜齿圆柱齿轮 helical-spur gear直齿锥齿轮 straight bevel gear运动简图 kinematic sketch齿轮齿条 pinion and rack蜗杆蜗轮 worm and worm gear虚约束 passive constraint曲柄 crank摇杆 racker凸轮 cams共轭曲线 conjugate curve范成法 generation method定义域 definitional domain值域 range导数\\微分 differential coefficient求导 derivation定积分 definite integral不定积分 indefinite integral曲率 curvature偏微分 partial differential毛坯 rough游标卡尺 slide caliper千分尺 micrometer calipers攻丝 tap二阶行列式 second order determinant逆矩阵 inverse matrix线性方程组 linear equations概率 probability随机变量 random variable排列组合 permutation and combination气体状态方程 equation of state of gas动能 kinetic energy势能 potential energy机械能守恒 conservation of mechanical energy 动量 momentum桁架 truss轴线 axes余子式 cofactor逻辑电路 logic circuit触发器 flip-flop脉冲波形 pulse shape数模 digital analogy液压传动机构 fluid drive mechanism机械零件 mechanical parts淬火冷却 quench淬火 hardening回火 tempering调质 hardening and tempering磨粒 abrasive grain结合剂 bonding agent砂轮 grinding wheel后角 clearance angle龙门刨削 planing主轴 spindle主轴箱 headstock卡盘 chuck加工中心 machining center车刀 lathe tool车床 lathe钻削镗削 bore车削 turning磨床 grinder基准 benchmark钳工 locksmith锻 forge压模 stamping焊 weld拉床 broaching machine拉孔 broaching装配 assembling铸造 found流体动力学 fluid dynamics流体力学 fluid mechanics加工 machining液压 hydraulic pressure切线 tangent机电一体化 mechanotronics mechanical-electrical integration 气压 air pressure pneumatic pressure稳定性 stability介质 medium液压驱动泵 fluid clutch液压泵 hydraulic pump阀门 valve失效 invalidation强度 intensity载荷 load应力 stress安全系数 safty factor可靠性 reliability螺纹 thread螺旋 helix键 spline销 pin滚动轴承 rolling bearing滑动轴承 sliding bearing弹簧 spring制动器 arrester brake十字结联轴节 crosshead联轴器 coupling链 chain皮带 strap精加工 finish machining粗加工 rough machining变速箱体 gearbox casing腐蚀 rust氧化 oxidation磨损 wear耐用度 durability随机信号 random signal离散信号 discrete signal超声传感器 ultrasonic sensor集成电路 integrate circuit挡板 orifice plate残余应力 residual stress套筒 sleeve扭力 torsion冷加工 cold machining电动机 electromotor汽缸 cylinder过盈配合 interference fit热加工 hotwork摄像头 CCD camera倒角 rounding chamfer优化设计 optimal design工业造型设计 industrial moulding design有限元 finite element滚齿 hobbing插齿 gear shaping伺服电机 actuating motor铣床 milling machine钻床 drill machine镗床 boring machine步进电机 stepper motor丝杠 screw rod导轨 lead rail组件 subassembly可编程序逻辑控制器 Programmable Logic Controller PLC 电火花加工 electric spark machining电火花线切割加工 electrical discharge wire - cutting 相图 phase diagram热处理 heat treatment固态相变 solid state phase changes有色金属 nonferrous metal陶瓷 ceramics合成纤维 synthetic fibre电化学腐蚀 electrochemical corrosion车架 automotive chassis悬架 suspension转向器 redirector变速器 speed changer板料冲压 sheet metal parts孔加工 spot facing machining车间 workshop工程技术人员 engineer气动夹紧 pneuma lock数学模型 mathematical model画法几何 descriptive geometry机械制图 Mechanical drawing投影 projection视图 view剖视图 profile chart标准件 standard component零件图 part drawing装配图 assembly drawing尺寸标注 size marking技术要求 technical requirements刚度 rigidity内力 internal force位移 displacement截面 section疲劳极限 fatigue limit断裂 fracture塑性变形 plastic distortion脆性材料 brittleness material刚度准则 rigidity criterion垫圈 washer垫片 spacer直齿圆柱齿轮 straight toothed spur gear 斜齿圆柱齿轮 helical-spur gear直齿锥齿轮 straight bevel gear运动简图 kinematic sketch齿轮齿条 pinion and rack蜗杆蜗轮 worm and worm gear虚约束 passive constraint曲柄 crank摇杆 racker凸轮 cams共轭曲线 conjugate curve范成法 generation method定义域 definitional domain值域 range导数\\微分 differential coefficient求导 derivation定积分 definite integral不定积分 indefinite integral曲率 curvature偏微分 partial differential毛坯 rough游标卡尺 slide caliper千分尺 micrometer calipers攻丝 tap二阶行列式 second order determinant逆矩阵 inverse matrix线性方程组 linear equations概率 probability随机变量 random variable排列组合 permutation and combination气体状态方程 equation of state of gas动能 kinetic energy势能 potential energy机械能守恒 conservation of mechanical energy 动量 momentum桁架 truss轴线 axes余子式 cofactor逻辑电路 logic circuit触发器 flip-flop脉冲波形 pulse shape数模 digital analogy液压传动机构 fluid drive mechanism机械零件 mechanical parts淬火冷却 quench淬火 hardening回火 tempering调质 hardening and tempering磨粒 abrasive grain结合剂 bonding agent砂轮 grinding wheelAssembly line 组装线Layout 布置图Conveyer 流水线物料板Rivet table 拉钉机Rivet gun 拉钉枪Screw driver 起子Pneumatic screw driver 气动起子worktable 工作桌OOBA 开箱检查fit together 组装在一起fasten 锁紧(螺丝)fixture 夹具(治具)pallet 栈板barcode 条码barcode scanner 条码扫描器fuse together 熔合fuse machine热熔机repair修理operator作业员QC品管supervisor 课长ME 制造工程师MT 制造生技cosmetic inspect 外观检查inner parts inspect 内部检查thumb screw 大头螺丝lbs. inch 镑、英寸EMI gasket 导电条front plate 前板rear plate 后板chassis 基座bezel panel 面板power button 电源按键reset button 重置键Hi-pot test of SPS 高源高压测试Voltage switch of SPS 电源电压接拉键sheet metal parts 冲件plastic parts 塑胶件SOP 制造作业程序material check list 物料检查表work cell 工作间trolley 台车carton 纸箱sub-line 支线left fork 叉车personnel resource department 人力资源部production department生产部门planning department企划部QC Section品管科stamping factory冲压厂painting factory烤漆厂molding factory成型厂common equipment常用设备uncoiler and straightener整平机punching machine 冲床robot机械手hydraulic machine油压机lathe车床planer |plein|刨床miller铣床grinder磨床linear cutting线切割electrical sparkle电火花welder电焊机staker=reviting machine铆合机position职务president董事长general manager总经理special assistant manager特助factory director厂长department director部长deputy manager | =vice manager副理section supervisor课长deputy section supervisor =vice section superisor副课长group leader/supervisor组长line supervisor线长assistant manager助理to move, to carry, to handle搬运be put in storage入库pack packing包装to apply oil擦油to file burr 锉毛刺final inspection终检to connect material接料to reverse material 翻料wet station沾湿台Tiana天那水cleaning cloth抹布to load material上料to unload material卸料to return material/stock to退料scraped |\\'skr?pid|报废scrape ..v.刮;削deficient purchase来料不良manufacture procedure制程deficient manufacturing procedure制程不良oxidation |\\' ksi\\'dei?n|氧化scratch刮伤dents压痕defective upsiding down抽芽不良defective to staking铆合不良embedded lump镶块feeding is not in place送料不到位stamping-missing漏冲production capacity生产力education and training教育与训练proposal improvement提案改善spare parts=buffer备件forklift叉车trailer=long vehicle拖板车compound die合模die locker锁模器pressure plate=plate pinch压板bolt螺栓administration/general affairs dept总务部automatic screwdriver电动启子thickness gauge厚薄规gauge(or jig)治具power wire电源线buzzle蜂鸣器defective product label不良标签identifying sheet list标示单location地点present members出席人员subject主题conclusion结论decision items决议事项responsible department负责单位pre-fixed finishing date预定完成日approved by / checked by / prepared by核准/审核/承办PCE assembly production schedule sheet PCE组装厂生产排配表model机锺work order工令revision版次remark备注production control confirmation生产确认checked by初审approved by核准department部门stock age analysis sheet 库存货龄分析表on-hand inventory现有库存available material良品可使用obsolete material良品已呆滞to be inspected or reworked 待验或重工total合计cause description原因说明part number/ P/N 料号type形态item/group/class类别quality品质prepared by制表 notes说明year-end physical inventory difference analysis sheet 年终盘点差异分析表physical inventory盘点数量physical count quantity帐面数量difference quantity差异量cause analysis原因分析raw materials原料materials物料finished product成品semi-finished product半成品packing materials包材good product/accepted goods/ accepted parts/good parts良品defective product/non-good parts不良品disposed goods处理品warehouse/hub仓库on way location在途仓oversea location海外仓spare parts physical inventory list备品盘点清单spare molds location模具备品仓skid/pallet栈板tox machine自铆机wire EDM线割EDM放电机coil stock卷料sheet stock片料tolerance工差score=groove压线cam block滑块pilot导正筒trim剪外边pierce剪内边drag form压锻差pocket for the punch head挂钩槽slug hole废料孔feature die公母模expansion dwg展开图radius半径shim(wedge)楔子torch-flame cut火焰切割set screw止付螺丝form block折刀stop pin定位销round pierce punch=die button圆冲子shape punch=die insert异形子stock locater block定位块under cut=scrap chopper清角active plate活动板baffle plate挡块cover plate盖板male die公模female die母模groove punch压线冲子air-cushion eject-rod气垫顶杆spring-box eject-plate弹簧箱顶板bushing block衬套insert 入块club car高尔夫球车capability能力parameter参数factor系数phosphate皮膜化成viscosity涂料粘度alkalidipping脱脂main manifold主集流脉bezel斜视规blanking穿落模dejecting顶固模demagnetization去磁;消磁high-speed transmission高速传递heat dissipation热传 rack上料degrease脱脂rinse水洗alkaline etch龄咬desmut剥黑膜D.I. rinse纯水次Chromate铬酸处理Anodize阳性处理seal封孔revision版次part number/P/N料号good products良品scraped products报放心品defective products不良品finished products成品disposed products处理品barcode条码flow chart流程表单assembly组装stamping冲压molding成型spare parts=buffer备品coordinate座标dismantle the die折模auxiliary fuction辅助功能poly-line多义线heater band 加热片thermocouple热电偶sand blasting喷沙grit 砂砾derusting machine除锈机degate打浇口dryer烘干机induction感应induction light感应光response=reaction=interaction感应ram连杆edge finder巡边器concave凸convex凹short射料不足nick缺口speck瑕??shine亮班splay 银纹gas mark焦痕delamination起鳞cold slug冷块blush 导色gouge沟槽;凿槽satin texture段面咬花witness line证示线patent专利grit沙砾granule=peuet=grain细粒grit maker抽粒机cushion缓冲magnalium镁铝合金magnesium镁金metal plate钣金lathe车 mill锉plane刨grind磨drill铝boring镗blinster气泡fillet镶;嵌边through-hole form通孔形式voller pin formality滚针形式cam driver铡楔shank摸柄crank shaft曲柄轴augular offset角度偏差velocity速度production tempo生产进度现状torque扭矩spline=the multiple keys花键quenching淬火tempering回火annealing退火carbonization碳化tungsten high speed steel钨高速的moly high speed steel钼高速的organic solvent有机溶剂bracket小磁导liaison联络单volatile挥发性resistance电阻ion离子titrator滴定仪beacon警示灯coolant冷却液crusher破碎机阿基米德蜗杆 Archimedes worm安全系数 safety factor; factor of safety安全载荷 safe load凹面、凹度 concavity扳手 wrench板簧 flat leaf spring半圆键 woodruff key变形 deformation摆杆 oscillating bar摆动从动件 oscillating follower摆动从动件凸轮机构 cam with oscillating follower 摆动导杆机构 oscillating guide-bar mechanism摆线齿轮 cycloidal gear摆线齿形 cycloidal tooth profile摆线运动规律 cycloidal motion摆线针轮 cycloidal-pin wheel包角 angle of contact保持架 cage背对背安装 back-to-back arrangement背锥 back cone ； normal cone背锥角 back angle背锥距 back cone distance比例尺 scale比热容 specific heat capacity闭式链 closed kinematic chain闭链机构 closed chain mechanism臂部 arm变频器 frequency converters变频调速 frequency control of motor speed变速 speed change变速齿轮 change gear change wheel变位齿轮 modified gear变位系数 modification coefficient标准齿轮 standard gear标准直齿轮 standard spur gear表面质量系数 superficial mass factor表面传热系数 surface coefficient of heat transfer表面粗糙度 surface roughness并联式组合 combination in parallel并联机构 parallel mechanism并联组合机构 parallel combined mechanism并行工程 concurrent engineering并行设计 concurred design, CD不平衡相位 phase angle of unbalance不平衡 imbalance (or unbalance)不平衡量 amount of unbalance不完全齿轮机构 intermittent gearing波发生器 wave generator波数 number of waves补偿 compensation参数化设计 parameterization design, PD残余应力 residual stress操纵及控制装置 operation control device槽轮 Geneva wheel槽轮机构 Geneva mechanism ； Maltese cross槽数 Geneva numerate槽凸轮 groove cam侧隙 backlash差动轮系 differential gear train差动螺旋机构 differential screw mechanism差速器 differential常用机构 conventional mechanism; mechanism in common use 车床 lathe承载量系数 bearing capacity factor承载能力 bearing capacity成对安装 paired mounting尺寸系列 dimension series齿槽 tooth space齿槽宽 spacewidth齿侧间隙 backlash齿顶高 addendum齿顶圆 addendum circle齿根高 dedendum齿根圆 dedendum circle齿厚 tooth thickness齿距 circular pitch齿宽 face width齿廓 tooth profile齿廓曲线 tooth curve齿轮 gear齿轮变速箱 speed-changing gear boxes齿轮齿条机构 pinion and rack齿轮插刀 pinion cutter; pinion-shaped shaper cutter 齿轮滚刀 hob ,hobbing cutter齿轮机构 gear齿轮轮坯 blank齿轮传动系 pinion unit齿轮联轴器 gear coupling齿条传动 rack gear齿数 tooth number齿数比 gear ratio齿条 rack齿条插刀 rack cutter; rack-shaped shaper cutter齿形链、无声链 silent chain齿形系数 form factor齿式棘轮机构 tooth ratchet mechanism插齿机 gear shaper重合点 coincident points重合度 contact ratio冲床 punch传动比 transmission ratio, speed ratio传动装置 gearing; transmission gear传动系统 driven system传动角 transmission angle传动轴 transmission shaft串联式组合 combination in series串联式组合机构 series combined mechanism串级调速 cascade speed control创新 innovation creation创新设计 creation design垂直载荷、法向载荷 normal load唇形橡胶密封 lip rubber seal磁流体轴承 magnetic fluid bearing从动带轮 driven pulley从动件 driven link, follower从动件平底宽度 width of flat-face从动件停歇 follower dwell从动件运动规律 follower motion从动轮 driven gear粗线 bold line粗牙螺纹 coarse thread大齿轮 gear wheel打包机 packer打滑 slipping带传动 belt driving带轮 belt pulley带式制动器 band brake单列轴承 single row bearing单向推力轴承 single-direction thrust bearing单万向联轴节 single universal joint单位矢量 unit vector当量齿轮 equivalent spur gear; virtual gear当量齿数 equivalent teeth number; virtual number of teeth当量摩擦系数 equivalent coefficient of friction当量载荷 equivalent load刀具 cutter导数 derivative倒角 chamfer导热性 conduction of heat导程 lead导程角 lead angle等加等减速运动规律 parabolic motion; constant acceleration and deceleration motion 等速运动规律 uniform motion; constant velocity motion等径凸轮 conjugate yoke radial cam等宽凸轮 constant-breadth cam等效构件 equivalent link等效力 equivalent force等效力矩 equivalent moment of force等效量 equivalent等效质量 equivalent mass等效转动惯量 equivalent moment of inertia等效动力学模型 dynamically equivalent model底座 chassis低副 lower pair点划线 chain dotted line（疲劳）点蚀 pitting垫圈 gasket垫片密封 gasket seal碟形弹簧 belleville spring顶隙 bottom clearance定轴轮系 ordinary gear train; gear train with fixed axes动力学 dynamics动密封 kinematical seal动能 dynamic energy动力粘度 dynamic viscosity动力润滑 dynamic lubrication动平衡 dynamic balance动平衡机 dynamic balancing machine动态特性 dynamic characteristics动态分析设计 dynamic analysis design动压力 dynamic reaction动载荷 dynamic load端面 transverse plane端面参数 transverse parameters端面齿距 transverse circular pitch端面齿廓 transverse tooth profile端面重合度 transverse contact ratio端面模数 transverse module端面压力角 transverse pressure angle锻造 forge对称循环应力 symmetry circulating stress对心滚子从动件 radial (or in-line ) roller follower对心直动从动件 radial (or in-line ) translating follower对心移动从动件 radial reciprocating follower对心曲柄滑块机构 in-line slider-crank (or crank-slider) mechanism 多列轴承 multi-row bearing多楔带 poly V-belt多项式运动规律 polynomial motion多质量转子 rotor with several masses惰轮 idle gear额定寿命 rating life额定载荷 load ratingII 级杆组 dyad发生线 generating line发生面 generating plane法面 normal plane法面参数 normal parameters法面齿距 normal circular pitch法面模数 normal module法面压力角 normal pressure angle法向齿距 normal pitch法向齿廓 normal tooth profile法向直廓蜗杆 straight sided normal worm法向力 normal force反馈式组合 feedback combining反向运动学 inverse ( or backward) kinematics反转法 kinematic inversion反正切 Arctan范成法 generating cutting仿形法 form cutting方案设计、概念设计 concept design, CD防振装置 shockproof device飞轮 flywheel飞轮矩 moment of flywheel非标准齿轮 nonstandard gear非接触式密封 non-contact seal非周期性速度波动 aperiodic speed fluctuation非圆齿轮 non-circular gear粉末合金 powder metallurgy分度线 reference line; standard pitch line分度圆 reference circle; standard (cutting) pitch circle分度圆柱导程角 lead angle at reference cylinder分度圆柱螺旋角 helix angle at reference cylinder分母 denominator分子 numerator分度圆锥 reference cone; standard pitch cone 分析法 analytical method封闭差动轮系 planetary differential复合铰链 compound hinge复合式组合 compound combining复合轮系 compound (or combined) gear train 复合平带 compound flat belt复合应力 combined stress复式螺旋机构 Compound screw mechanism复杂机构 complex mechanism杆组 Assur group干涉 interference刚度系数 stiffness coefficient刚轮 rigid circular spline钢丝软轴 wire soft shaft刚体导引机构 body guidance mechanism刚性冲击 rigid impulse (shock)刚性转子 rigid rotor刚性轴承 rigid bearing刚性联轴器 rigid coupling高度系列 height series高速带 high speed belt高副 higher pair格拉晓夫定理 Grashoff`s law根切 undercutting公称直径 nominal diameter高度系列 height series功 work工况系数 application factor工艺设计 technological design工作循环图 working cycle diagram工作机构 operation mechanism工作载荷 external loads工作空间 working space工作应力 working stress工作阻力 effective resistance工作阻力矩 effective resistance moment公法线 common normal line公共约束 general constraint公制齿轮 metric gears功率 power功能分析设计 function analyses design共轭齿廓 conjugate profiles共轭凸轮 conjugate cam构件 link鼓风机 blower固定构件 fixed link; frame固体润滑剂 solid lubricant关节型操作器 jointed manipulator惯性力 inertia force惯性力矩 moment of inertia ,shaking moment惯性力平衡 balance of shaking force惯性力完全平衡 full balance of shaking force惯性力部分平衡 partial balance of shaking force 惯性主矩 resultant moment of inertia惯性主失 resultant vector of inertia冠轮 crown gear广义机构 generation mechanism广义坐标 generalized coordinate轨迹生成 path generation轨迹发生器 path generator滚刀 hob滚道 raceway滚动体 rolling element滚动轴承 rolling bearing滚动轴承代号 rolling bearing identification code 滚针 needle roller滚针轴承 needle roller bearing滚子 roller滚子轴承 roller bearing滚子半径 radius of roller滚子从动件 roller follower滚子链 roller chain滚子链联轴器 double roller chain coupling滚珠丝杆 ball screw滚柱式单向超越离合器 roller clutch过度切割 undercutting函数发生器 function generator函数生成 function generation含油轴承 oil bearing耗油量 oil consumption耗油量系数 oil consumption factor赫兹公式 H. Hertz equation合成弯矩 resultant bending moment合力 resultant force合力矩 resultant moment of force黑箱 black box横坐标 abscissa互换性齿轮 interchangeable gears花键 spline滑键、导键 feather key滑动轴承 sliding bearing滑动率 sliding ratio滑块 slider环面蜗杆 toroid helicoids worm环形弹簧 annular spring缓冲装置 shocks; shock-absorber灰铸铁 grey cast iron回程 return回转体平衡 balance of rotors混合轮系 compound gear train积分 integrate机电一体化系统设计 mechanical-electrical integration system design 机构 mechanism机构分析 analysis of mechanism机构平衡 balance of mechanism机构学 mechanism机构运动设计 kinematic design of mechanism机构运动简图 kinematic sketch of mechanism机构综合 synthesis of mechanism机构组成 constitution of mechanism机架 frame, fixed link机架变换 kinematic inversion机器 machine机器人 robot机器人操作器 manipulator机器人学 robotics技术过程 technique process技术经济评价 technical and economic evaluation技术系统 technique system机械 machinery机械创新设计 mechanical creation design, MCD机械系统设计 mechanical system design, MSD机械动力分析 dynamic analysis of machinery机械动力设计 dynamic design of machinery机械动力学 dynamics of machinery机械的现代设计 modern machine design机械系统 mechanical system机械利益 mechanical advantage机械平衡 balance of machinery机械手 manipulator机械设计 machine design; mechanical design机械特性 mechanical behavior机械调速 mechanical speed governors机械效率 mechanical efficiency机械原理 theory of machines and mechanisms机械运转不均匀系数 coefficient of speed fluctuation机械无级变速 mechanical stepless speed changes基础机构 fundamental mechanism基本额定寿命 basic rating life基于实例设计 case-based design,CBD基圆 base circle基圆半径 radius of base circle基圆齿距 base pitch基圆压力角 pressure angle of base circle基圆柱 base cylinder基圆锥 base cone急回机构 quick-return mechanism急回特性 quick-return characteristics急回系数 advance-to return-time ratio急回运动 quick-return motion棘轮 ratchet棘轮机构 ratchet mechanism棘爪 pawl极限位置 extreme (or limiting) position极位夹角 crank angle between extreme (or limiting) positions计算机辅助设计 computer aided design, CAD计算机辅助制造 computer aided manufacturing, CAM计算机集成制造系统 computer integrated manufacturing system, CIMS 计算力矩 factored moment; calculation moment计算弯矩 calculated bending moment加权系数 weighting efficient加速度 acceleration加速度分析 acceleration analysis加速度曲线 acceleration diagram尖点 pointing; cusp尖底从动件 knife-edge follower间隙 backlash间歇运动机构 intermittent motion mechanism减速比 reduction ratio减速齿轮、减速装置 reduction gear减速器 speed reducer减摩性 anti-friction quality渐开螺旋面 involute helicoid渐开线 involute渐开线齿廓 involute profile渐开线齿轮 involute gear渐开线发生线 generating line of involute渐开线方程 involute equation渐开线函数 involute function渐开线蜗杆 involute worm渐开线压力角 pressure angle of involute渐开线花键 involute spline简谐运动 simple harmonic motion键 key键槽 keyway交变应力 repeated stress交变载荷 repeated fluctuating load交叉带传动 cross-belt drive交错轴斜齿轮 crossed helical gears胶合 scoring角加速度 angular acceleration角速度 angular velocity角速比 angular velocity ratio角接触球轴承 angular contact ball bearing角接触推力轴承 angular contact thrust bearing角接触向心轴承 angular contact radial bearing角接触轴承 angular contact bearing铰链、枢纽 hinge校正平面 correcting plane接触应力 contact stress接触式密封 contact seal阶梯轴 multi-diameter shaft结构 structure结构设计 structural design截面 section节点 pitch point节距 circular pitch; pitch of teeth节线 pitch line节圆 pitch circle节圆齿厚 thickness on pitch circle节圆直径 pitch diameter节圆锥 pitch cone节圆锥角 pitch cone angle解析设计 analytical design紧边 tight-side紧固件 fastener径节 diametral pitch径向 radial direction径向当量动载荷 dynamic equivalent radial load径向当量静载荷 static equivalent radial load径向基本额定动载荷 basic dynamic radial load rating 径向基本额定静载荷 basic static radial load tating 径向接触轴承 radial contact bearing径向平面 radial plane径向游隙 radial internal clearance径向载荷 radial load径向载荷系数 radial load factor径向间隙 clearance静力 static force静平衡 static balance静载荷 static load静密封 static seal局部自由度 passive degree of freedom矩阵 matrix矩形螺纹 square threaded form锯齿形螺纹 buttress thread form矩形牙嵌式离合器 square-jaw positive-contact clutch绝对尺寸系数 absolute dimensional factor绝对运动 absolute motion绝对速度 absolute velocity均衡装置 load balancing mechanism抗压强度 compression strength开口传动 open-belt drive开式链 open kinematic chain开链机构 open chain mechanism可靠度 degree of reliability可靠性 reliability可靠性设计 reliability design, RD空气弹簧 air spring空间机构 spatial mechanism空间连杆机构 spatial linkage空间凸轮机构 spatial cam空间运动副 spatial kinematic pair空间运动链 spatial kinematic chain空转 idle宽度系列 width series框图 block diagram雷诺方程 Reynolds‘s equation离心力 centrifugal force离心应力 centrifugal stress离合器 clutch离心密封 centrifugal seal理论廓线 pitch curve理论啮合线 theoretical line of action隶属度 membership力 force力多边形 force polygon力封闭型凸轮机构 force-drive (or force-closed) cam mechanism 力矩 moment力平衡 equilibrium力偶 couple力偶矩 moment of couple连杆 connecting rod, coupler连杆机构 linkage连杆曲线 coupler-curve连心线 line of centers链 chain链传动装置 chain gearing链轮 sprocket sprocket-wheel sprocket gear chain wheel联组 V 带 tight-up V belt联轴器 coupling shaft coupling两维凸轮 two-dimensional cam临界转速 critical speed六杆机构 six-bar linkage龙门刨床 double Haas planer轮坯 blank轮系 gear train螺杆 screw螺距 thread pitch螺母 screw nut螺旋锥齿轮 helical bevel gear螺钉 screws螺栓 bolts螺纹导程 lead螺纹效率 screw efficiency螺旋传动 power screw螺旋密封 spiral seal螺纹 thread (of a screw)螺旋副 helical pair螺旋机构 screw mechanism螺旋角 helix angle螺旋线 helix ,helical line绿色设计 green design design for environment马耳他机构 Geneva wheel Geneva gear马耳他十字 Maltese cross脉动无级变速 pulsating stepless speed changes脉动循环应力 fluctuating circulating stress脉动载荷 fluctuating load铆钉 rivet迷宫密封 labyrinth seal密封 seal密封带 seal belt密封胶 seal gum密封元件 potted component密封装置 sealing arrangement面对面安装 face-to-face arrangement面向产品生命周期设计 design for product`s life cycle, DPLC 名义应力、公称应力 nominal stress模块化设计 modular design, MD模块式传动系统 modular system模幅箱 morphology box模糊集 fuzzy set模糊评价 fuzzy evaluation模数 module摩擦 friction摩擦角 friction angle摩擦力 friction force摩擦学设计 tribology design, TD摩擦阻力 frictional resistance摩擦力矩 friction moment摩擦系数 coefficient of friction摩擦圆 friction circle磨损 abrasion wear; scratching末端执行器 end-effector目标函数 objective function耐腐蚀性 corrosion resistance耐磨性 wear resistance挠性机构 mechanism with flexible elements 挠性转子 flexible rotor内齿轮 internal gear内齿圈 ring gear内力 internal force内圈 inner ring能量 energy能量指示图 viscosity逆时针 counterclockwise (or anticlockwise)啮出 engaging-out啮合 engagement, mesh, gearing啮合点 contact points啮合角 working pressure angle啮合线 line of action啮合线长度 length of line of action啮入 engaging-in牛头刨床 shaper凝固点 freezing point; solidifying point 扭转应力 torsion stress扭矩 moment of torque扭簧 helical torsion spring诺模图 NomogramO 形密封圈密封 O ring seal盘形凸轮 disk cam盘形转子 disk-like rotor抛物线运动 parabolic motion疲劳极限 fatigue limit疲劳强度 fatigue strength偏置式 offset偏 ( 心 ) 距 offset distance偏心率 eccentricity ratio偏心质量 eccentric mass偏距圆 offset circle偏心盘 eccentric偏置滚子从动件 offset roller follower偏置尖底从动件 offset knife-edge follower偏置曲柄滑块机构 offset slider-crank mechanism拼接 matching评价与决策 evaluation and decision频率 frequency平带 flat belt平带传动 flat belt driving平底从动件 flat-face follower平底宽度 face width平分线 bisector平均应力 average stress平均中径 mean screw diameter平均速度 average velocity平衡 balance平衡机 balancing machine平衡品质 balancing quality平衡平面 correcting plane平衡质量 balancing mass平衡重 counterweight平衡转速 balancing speed平面副 planar pair, flat pair平面机构 planar mechanism平面运动副 planar kinematic pair平面连杆机构 planar linkage平面凸轮 planar cam平面凸轮机构 planar cam mechanism平面轴斜齿轮 parallel helical gears普通平键 parallel key其他常用机构 other mechanism in common use起动阶段 starting period启动力矩 starting torque气动机构 pneumatic mechanism奇异位置 singular position起始啮合点 initial contact , beginning of contact气体轴承 gas bearing千斤顶 jack嵌入键 sunk key强迫振动 forced vibration切齿深度 depth of cut曲柄 crank曲柄存在条件 Grashoff`s law曲柄导杆机构 crank shaper (guide-bar) mechanism曲柄滑块机构 slider-crank (or crank-slider) mechanism 曲柄摇杆机构 crank-rocker mechanism曲齿锥齿轮 spiral bevel gear曲率 curvature曲率半径 radius of curvature曲面从动件 curved-shoe follower。

Fluid Mechanics

2 流体平衡的方程式
p 化简得： f x 0 x 1 p fx 0 x 1 p fy 0 或： y
同理：
p f y 0 y
p f z 0 z
欧拉方程
1 p fz 0 z
i)力学平衡方程在流体力学中的特殊形式
ii)既适用于绝对静止，也适用于相对静止 iii)适用于可压缩流体，不可压缩流体，与流体有无粘性无关
2 2 自由表面： z r / 2g
6 流体的相对平衡 2.静压强分布规律
dp ( 2 xdx 2 ydy gdz) 1 2 2 p c ( r gz ) 积分： 2 若液面压强为 p0 则 c p0
1 p p0 ( 2 r 2 gz ) 2
一族曲面
6 流体的相对平衡 2.静压强分布 ( f x dx f y dy f z dz) dp
dp a cos dy (a sin g )dz
在自由表面上： p | y z 0 p0
c p0
p p0 [ay cos z(a sin g )]
( z1 , p1 )
( z2 , p2 )
4 静压强的表示方法与度量
以绝对真空为压力起点的表示方法－绝对压力以大气压力为压力起点的表示方法－相对压力、表压力表示绝对压力小于一个大气压力的压力范围 -真空度
0
0.1Mpa
绝对压力
相对压力
真空度
０
压力单位：
Pa N / m2
假定一函数为W,应有：
2 流体平衡的方程式三、等压面方程流体中压强相等的点组成的面－等压面
p c, dp 0

3 流体运动学

a (V )V
只有迁移加速度
定常流动（steady flow)
非定常流动（unsteady flow)
二、迹线和流线
属拉格朗日法的研究内容。
（一）迹线 (Path Line)
1、定义—— 流场中某一流体质点的运动轨迹。同一流体质点在不同时刻形成的曲线 2、迹线微分方程
dx dy dz dt ux u y uz
流场
充满运动的连续流体的空间。在流场中，每个流体质点均有确定的运动要素。
研究流体运动的两种方法：一、拉格朗日法（Lagrange）二、欧拉法（Euler）
拉格朗日：
法国数学家、物理学家。1736年1月25日生于意大利西北部的都灵，1813年4月10日卒于巴黎。 19岁就在都灵的皇家炮兵学校当数学教授。 1766年德国的腓特烈大帝向拉格朗日发出邀请说，在“欧洲最大的王”的宫廷中应有“欧洲最大的数学家”。于是他应邀去柏林，居住达二十年之久。在此期间他完成了《分析力学》一书，建立起完整和谐的力学体系。
流线
某一瞬时，速度方向线欧拉法
研究方法
微分方程
拉格朗日法
dx dy dz dt ux u y uz
dx dy dz ux u y uz
(x,y,z为t的函数，t为参数）
（t为自变量， x, y, z 为t的函数）
三、流管和流束 (Stream Tube and Stream Beam)
括弧内可以代表描述流体运动的任一物理量，如密度、温度、压强，可以是标量，也可以是矢量。压强的质点导数
Dp p V p Dt t

密度的质点导数
全导数
D( ) Dt

Chapter 1 Fluids Mechanics & Fluids Properties：1章流体力学及流体性质33页PPT

SEQUENCE OF CHAPTER 1
Introduction
Objectives
1.1 Definition of A Fluid Shear stress in moving fluid Differences between liquid and gases Newtonian and Non-Newtonian Fluid
3. Define the basic fluid properties.
4. Identify the relationships between specific weight, specific gravity and density, and solve problems using their relationships.
du (1.1) dy

= shear stress
= viscosity of fluid
du/dy = shear rate, rate of strain or velocity gradient
Example:
Air Water Oil Gasoline Alcohol Kerosene Benzene Glycerine
Subject Matter Expert/Author: Assoc. Prof. Dr Othman A. Karim (OUM)
5
Pengenalan Kepada Pangkalan Data © ODL Jan 2005 Open University Malaysia © ODL Jan 2005 Open University Malaysia ©
Faculty of Engineering and Technical Studies

机械类专业课程名称中英文对照

机械类专业课程名称中英文对照第一篇：机械类专业课程名称中英文对照机械制图 Mechanical Drawing可编程序控制技术 Controlling Technique for Programming金工实习Metal Working Practice毕业实习Graduation Practice理论力学 Theoretical Mechanics 材料力学 Material Mechanics数字电子电路 Fundamental Digital Circuit机械控制工程 Mechanical Control Engineering可靠性工程 Reliability Engineering机械工程测试技术Measurement Techniques of Mechanic Engineering计算机控制系统 Computer Control System机器人技术基础 Fundamentals of Robot Techniques最优化技术 Techniques of Optimum工程测试与信号处理 Engineering Testing & Signal Processing 金属工艺及设计 Metal Technics & Design机械工业企业管理Mechanic Industrial Enterprise Management机械零件课程设计 Course Design of Machinery Elements投资经济学 Investment Economics现代企业管理 Modern Enterprise Administration市场营销学 Market Selling生产实习Production Practice课程设计 Course Exercise有限元法 FInite Element金工实习Metalworking Practice液压传动 Hydraulic Transmission微机原理及接口技术 Principle & Interface Technique of Micro-computer微机原理及接口技术Principle & Interface Technique of Micro-computer数控技术 Digit Control Technique活塞膨胀机 Piston Expander 活塞式制冷压缩机 Piston Refrigerant Compreessor活塞式压缩机 Piston Compressor活塞式压缩机基础设计 Basic Design of Piston Compressor活塞压缩机结构强度 Structural Intensity of Piston Compressor 活赛压机气流脉动 Gas Pulsation of Piston Pressor货币银行学 Currency Banking基本电路理论 Basis Theory of Circuit基础写作 Fundamental Course of Composition机床电路 Machine Tool Circuit机床电器 Machine Tool Electric Appliance机床电气控制 Electrical Control of Machinery Tools机床动力学 Machine Tool Dynamics机床设计 Machine Tool design机床数字控制 Digital Control of Machine Tool机床液压传动 Machinery T ool Hydraulic Transmission机电传动 Mechanical & Electrical Transmission机电传动控制 Mechanical & electrical Transmission Control 机电耦合系统 Mechanical & Electrical Combination System机电系统计算机仿真Computer Simulation of Mechanic/Electrical Systems机电一体化 Mechanical & Electrical Integration机构学 Structuring机器人 Robot机器人控制技术 Robot Control Technology机械产品学 Mechanic Products机械产品造型设计 Shape Design of Mechanical Products机械工程控制基础 Basic Mechanic Engineering Control机械加工自动化 Automation in Mechanical Working机械可靠性 Mechanical Reliability机械零件 Mechanical Elements机械零件设计 Course Exercise in Machinery Elements Design 机械零件设计基础 Basis of Machinery Elements Design机械设计 Mechanical Designing机械设计基础 Basis of Mechanical Designing机械设计课程设计 Course Exercise in Mechanical Design机械设计原理 Principle of Mechanical Designing机械式信息传输机构Mechanical Information Transmission Device机械原理 Principle of Mechanics机械原理和机械零件 Mechanism & Machinery机械原理及机械设计 Mechanical Designing机械原理及应用Mechanical Principle & Mechanical Applications机械原理课程设计 Course Exercise of Mechanical Principle机械原理与机械零件Mechanical Principle and Mechanical Elements机械原理与机械设计Mechanical Principle and Mechanical Design机械噪声控制 Control of Mechanical Noise机械制造概论 Introduction to Mechanical Manufacture机械制造工艺学 Technology of Mechanical Manufacture机械制造基础 Fundamental of Mechanical Manufacture机械制造基础(金属工艺学)Fundamental Course of Mechanic Manufacturing(Meta机械制造系统自动化 Automation of Mechanical Manufacture System机械制造中计算机控制Computer Control in Mechanical Manufacture互换性与技术测量 Elementary Technology of ExchangeabilityMeasurement焊接方法 Welding Method焊接方法及设备 Welding Method & Equipment焊接检验 Welding T esting焊接结构 Welding Structure焊接金相 Welding Fractography焊接金相分析 Welding Fractography Analysis焊接冶金 Welding Metallurgy焊接原理 Fundamentals of Welding焊接原理及工艺 Fundamentals of Welding & Technology焊接自动化Automation of Welding工程材料的力学性能测试Mechanic Testing of Engineering Materials工程材料及热处理 Engineering Material and Heat Treatment 工程材料学 Engineering Materials工程测量 Engineering Surveying工程测试技术 Engineering Testing Technique工程测试实验Experiment on Engineering Testing工程测试信息Information of Engineering Testing工程动力学Engineering Dynamics工程概论 Introduction to Engineering工程概预算 Project Budget工程经济学 Engineering Economics工程静力学 Engineering Statics工程力学 Engineering Mechanics工程热力学 Engineering Thermodynamics工程项目评估 Engineering Project Evaluation工程优化方法 Engineering Optimizational Method工程运动学Engineering Kinematics工程造价管理 Engineering Cost Management工程制图 Graphing of Engineering电机学 Electrical Motor电机学及控制电机 Electrical Machinery Control & Technology第二篇：机械名称中英文对照一、除大块机Eliminates the bulk machine二、齿型筛分除杂物机The screening and eliminates the sundry goods machine三、振动煤箅Vibration Coal Grate四、滚轴筛Roller Screen五、滚筒筛Trommel Screen六、振动概率筛Vibration Probability Screen七、减振平台Antivibration Platform八、布料器Distributing Device九、皮带机头部伸缩装置Conveyer Belt Telescopiform Device十、胶带给料机Belt Feeder十一、往复式给料机Reciprocating Feeder十二、振动给煤机Vibrator Feeder十三、叶轮给煤机Coal Impeller Feeder十四、埋刮板输送机Buried Scraper Conveyer十五、螺旋输送机Screw Conveyer十六、板式喂料机Apron Feeder十七、缓冲弹簧板式大块输送机Buffer Spring Apron Bulk Converyor十八、斗式提升机Chain-Bucket Elevator十九、TD75、DTⅡ型带式输送机Type TD75/DTII Belt Conveyer二十、电动三通3-Through-Chute With Electric Drive Gate 二十一、重力式煤沟挡板Gravity Type Coal Ditch Baffle二十二、物料稳流器Material Constant Staticizer二十三、犁式卸料器、刮水器Plough Type Tripper/Wiper 二十四、栈桥冲洗器Flusher二十五、喷雾除尘系统Exhaust System 二十六、缓冲锁气器Buffer Air Lock 二十七、缓冲滚筒Snub Pulley二十八、二十九、三十、缓冲平台Buffer Platform 胶带防撕裂保护装置Belt Protective Device 链斗卸车机Bucket-Chain Unloader第三篇：机械专业英语文章中英文对照英语原文NUMERICAL CONTROLNumerical control(N/C)is a form of programmable automation in which the processing equipment is controlled by means of numbers, letters, and other symbols, The numbers, letters, and symbols are coded in an appropriate format to define a program of instructions for a particular work part or job.When the job changes, the program of instructions is changed.The capability to change the program is what makes N/C suitable for low-and medium-volume production.It is much easier to write programs than to make major alterations of the processing equipment.There are two basic types of numerically controlled machine tools：point—to—point and continuous—path(also called contouring).Point—to—point machines use unsynchronized motors, with the result that the position of the machining head Can be assured only upon completion of a movement, or while only one motor is running.Machines of this type are principally used for straight—line cuts or for drilling or boring.The N/C system consists of the following components：data input, the tape reader with the control unit, feedback devices, and the metal—cutting machine tool or other type of N/C equipment.Data inpu t, also called “man—to—control link”, may be provided to the machine tool manually, or entirely by automatic means.Manual methods when used as the sole source of input data are restricted to a relatively small number of inputs.Examples of manually operated devices are keyboard dials,pushbuttons, switches, or thumbwheel selectors.These are located on a console near the machine.Dials ale analog devices usually connected to a syn-chro-type resolver or potentiometer.In most cases, pushbuttons, switches, and other similar types of selectors are digital input devices.Manual input requires that the operator set the controls for each operation.It is a slow and tedious process and is seldom justified except in elementary machining applications or in special cases.In practically all cases, information is automatically supplied to the control unit and the machine tool by cards, punched tapes, or by magnetic tape.Eight—channel punched paper tape is the most commonly used form of data input for conventional N/C systems.The coded instructions on the tape consist of sections of punched holes called blocks.Each block represents a machine function, a machining operation, or a combination of the two.The entire N/C program on a tape is made up of an accumulation of these successive data blocks.Programs resulting in long tapes all wound on reels like motion-picture film.Programs on relatively short tapes may be continuously repeated by joining the two ends of the tape to form a loop.Once installed, the tape is used again and again without further handling.In this case, the operator simply loads and1unloads the parts.Punched tapes ale prepared on type writers with special tape—punching attachments or in tape punching units connected directly to a computer system.Tape production is rarely error-free.Errors may be initially caused by the part programmer, in card punching or compilation, or as a result of physical damage to the tape during handling, etc.Several trial runs are often necessary to remove all errors and produce an acceptable working tape.While the data on the tape is fedautomatically, the actual programming steps ale done manually.Before the coded tape may be prepared, the programmer, often working with a planner or a process engineer, must select the appropriate N/C machine tool, determine the kind of material to be machined, calculate the speeds and feeds, and decide upon the type of tooling needed.The dimensions on the part print are closely examined to determine a suitable zero reference point from which to start the program.A program manuscript is then written which gives coded numerical instructions describing the sequence of operations that the machine tool is required to follow to cut the part to the drawing specifications.The control unit receives and stores all coded data until a complete block of information has been accumulated.It then interprets the coded instruction and directs the machine tool through the required motions.The function of the control unit may be better understood by comparing it to the action of a dial telephone, where, as each digit is dialed, it is stored.When the entire number has been dialed, the equipment becomes activated and the call is completed.Silicon photo diodes, located in the tape reader head on the control unit, detect light as it passes through the holes in the moving tape.The light beams are converted to electrical energy, which is amplified to further strengthen the signal.The signals are then sent to registers in the control unit, where actuation signals are relayed to the machine tool drives.Some photoelectric devices are capable of reading at rates up to 1000 characters per second.High reading rates are necessary to maintain continuous machine—tool motion；otherwise dwell marks may be generated by the cutter on the part during contouring operations.The reading device must be capable of reading data blocks at a rate faster than the controlsystem can process the data.A feedback device is a safeguard used on some N/C installations to constantly compensate for errors between the commanded position and the actual location of the moving slides of the machine tool.An N/C machine equipped with this kind of a direct feedback checking device has what is known as a closed-loop system.Positioning control is accomplished by a sensor which, during the actual operation, records the position of the slides and relays this information back to the control unit.Signals thus received ale compared to input signals on the tape, and any discrepancy between them is automatically rectified.In an alternative system, called an open—loop system, the machine is positioned solely by stepping motor drives in response to commands by a controllers.There is one basic type of NC motions.Point-to-point or Positional Control In point-to-point control the machine tool elements(tools, table, etc.)are moved to programmed locations and the machining operations performedafter the motions are completed.The path or speed of movement between locations is unimportant;only the coordinates of the end points of the motions are accurately controlled.This type of control is suitable for drill presses and some boring machines, where drilling, tapping, or boring operations must be performed at various locations on the work piece.Straight-Line or Linear Control Straight-Line control systems are able to move the cutting tool parallel to one of the major axes of the machine tool at a controlled rate suitable for machining.It is normally only possible to move in one direction at a time, so angular cuts on the work piece are not possible, consequently, for milling machines, only rectangular configurations can be machined or for lathes only surfacesparallel or perpendicular to the spindle axis can be machined.This type of controlled motion is often referred to as linear control or a half-axis of control.Machines with this form of control are also capable of point-to-point control.The original N/C used the closed—loop system.Of the two systems, closed and open loop, closed loop is more accurate and, as a consequence, is generally more expensive.Initially, open—loop systems were used almost entirely for light-duty applications because of inherent power limitations previously associated with conventional electric stepping motors.Recent advances in the development of electro hydraulic stepping motors have led to increasingly heavier machine load applications.中文译文数控技术数控是可编程自动化技术的一种形式,通过数字、字母和其他符号来控制加工设备。

Fluid Mechanics-3

a 1 b a 1 b
a
1 1 a a) b b
a
1 b) b
a
1 c)
b
18
3.2.2 Path line and streamline 2. Differential equation of streamline
dx dy dz ux u y uz
For example, a known plane flow field: ky kx ux 2 uy 2 2 x y x y2
14
3.2 THE CONCEPTS
3.2 概念
15
3.2.1 Flow dimensionality
One dimension——all main variables in the flow field can be completely specified by a single coordinate if the variation of flow parameters transverse to the mainstream direction can be neglected. Flow in parallel planes is two-dimensional because the motion of fluid particle normal to these planes is restricted for the existence of the planes. Three-dimensional flow is the most general flow.
(3.4)
So, the flow can be treated as a steady flow.
13
3.1.6 Rotational and irrotational

Lesson_7__机械英语

2011-5-5
《机械工程专业英语教程》
2
Rivet A rivet is a metal pin with a head used to fasten two or more materials together. 铆钉：铆钉是一头有帽的金属钉，铆钉：铆钉是一头有帽的金属钉，用来将两种或多种材料紧固在一起。固在一起。
• • • • • • •
nuisance [‘nju:sns] n. 讨厌之事、人，损害讨厌之事、 smoke nuisance..烟害烟害 telephone nuisance..电话骚扰电话骚扰 rattle [‘rætl] v. 使...嘎嘎响喀拉响嘎嘎响,n. 嘎嘎响 spring [spriŋ] n. 春天弹簧跳跃泉水春天,弹簧跳跃,泉水弹簧,跳跃 The cat made a spring at the mouse. 猫向老鼠扑去。猫向老鼠扑去。
因此，在为一个特定的用途选择紧固件时，因此，在为一个特定的用途选择紧固件时，应该考虑到上述各种可能性。应该考虑到上述各种可能性。
3. Springs are mechanical members which are designed to give a relatively large amount of elastic deflection under the action of an externally applied load. •弹簧是一种能够在外载荷作用下，产生相弹簧是一种能够在外载荷作用下，弹簧是一种能够在外载荷作用下当大的弹性变形的机械零件。当大的弹性变形的机械零件。
• proportional [prə'pɔ:ʃənl] a. 成比例的相成比例的,相 ɔʃ 称的 • Weight should be proportional to height. • 重量应该是比例与高度。重量应该是比例与高度。 • suspension [səs'penʃən] n. 悬挂未决中悬挂,未决未决,中 ʃ 止 • She appealed against her suspension. • 她对被停职一事已经上诉。她对被停职一事已经上诉。 • How the suspension of its performance? • 其悬架性能如何？其悬架性能如何？

专业英语第七单元

专业英语第七单元第七单元流变学和聚合物的机械性能流变学定义为是物质的流动和形变科学。

聚合物的流变学行为包括几种广泛不同的现象。

这些与某种程度上不同的分子过程有关。

这些现象和它们的主要机理如下：a. 粘性流动，聚合物材料的不可逆形变，与分子从一个到另一个的不可逆滑移有关。

b. 类橡胶弹性形变，与小范围分子链节运动有关的局部自由运动被保留，但大范围的流动被保留的扩散网状结构阻止了。

c. 粘弹性，当聚合物的形变是可逆的，但具有依时性，而且与高聚物链段通过，包括化学键旋转的活性链接运动而偏离平衡态构型的形变有关。

d. 胡克弹性，链段的运动被严格限制，同时可能只有键的延伸和键角的形变。

材料表观行为像玻璃。

这四种现象分别被讨论，他们一起描述非晶聚合物机械性能的基础。

然而半结晶聚合物的机械性能与结晶区域的束缚特性紧密相关。

同时只有部分符合非晶聚合物流变学行为。

结晶聚合物的机械性能将单独讨论。

粘性流动对小分子液体，粘度与温度的依赖关系被发现依照简单的指数关系η＝Ae E/RT其中E是粘流活化能，A是一个常数。

这些液体流动的特征可以根据几种分子理论来解释，其中Eyring的理论是建立在点阵结构上的，包括一些未被占据的区域或空穴。

当这些区域被填满时，它们可以在流体内部无规移动并通过分子由一个区域跃迁到另一个区域而重新产生。

在施加外力作用时，跃迁的概率在释放应力的方向上要大一些。

活化能量E被认为和液体蒸发的潜热有关，因为将一个分子从它临近的分子的包围中移开形成了这些过程（跃迁和蒸发）的一部分。

研究发现这样一个关系并把它作为证据证明在区域间运动的物质很可能是单分子。

当液态同系物的分子量增加到高分子的范围时，粘流活化能E并没有随着蒸发热成比例上升，而是趋于一个与分子量无关的值。

这意味着在长链分子中，运动单元比整个分子链尺寸小很多，运动单元是有着数量级为5-50个碳原子尺寸的分子链段。

粘性流动由链段的相继跃迁（当然也有一部分协调作用）完成直到整个分子链发生了移动。

FluidMechanics

calculus with p( x, y, z ) dp p dx p dy p dz x y z
2 Mechanics of fluids at rest
(
p
p
dx )
Newton’s second law is written z
x 2
( p p dz ) z 2
in vector for constant mass system.
2.2 Basic differential equation
Assume the pressure is the function of space
coordinates, or p=f( x, y, z ) . ( p p dx )
Consider a infinitesimal z
x 2
( p p dz ) z 2
Hydraulics and Pneumatics
Transmission
FLUID MECHANICS WITH HYDRAULICS
1 Fluid Properties 2 Mechanics of fluids at rest 3 Mechanics of fluids in motion 4 Energy loss of fluids in motion 5 Flow of fluids in clearances and orifices 6 Hydraulically sticking 7 Hydraulically shocking 8 Cavitation
Y
U
v
F
Y
The lower surface is assumed to be stationary, while upper one is moved parallel to it with a velocity U by the application of a force F, corresponding to some area A of the moving plates

液压传动之流体力学Fluid Mechanics

7
哈工大(威海) 液压传动主讲：贾宝贤
压力的表示方法
①绝对压力：以绝对零压力为基准算起的压力 ② 相对压力：以大气压力为基准测得的压力，又叫表压力
相对压力＝绝对压力－大气压力 ③真空度＝－相对压力＝大气压力－绝对压力 ④绝对压力＝大气压力＋相对压力
8
哈工大(威海) 液压传动主讲：贾宝贤
（二）压力的单位
19
（二）流线哈工、大流(威束海和) 流液压管传动主讲：贾宝贤
3. 流束：流线的集合。 4.流管：抽去流束的芯，流束的外皮。（三）通流截面、流量和平均流速 1.通流截面：过流截面(通流截面)：与所有流线都垂直的截面。
平行流动
缓变流动
急变流动
20
流量和平均哈工流大速(威海) 液压传动主讲：贾宝贤
§3-2液体动力学
主要讨论液体流动时的运动规律、能量转换和流动液体对固体壁面的作用力等问题，具体要介绍四个基本方程— 连续方程、运动方程、能量方程和动量方程。
16
哈工一大(、威海基)本液概压传念动主讲：贾宝贤
（一）理想液体、恒定流动和一维流动 1. 理想流体：无粘性、不可压缩。 2. 恒定流动(定常流动)：各点处的压力、速度、密度等物理参数都不随时间变化。
dt
s dt t
s t
关于全加速度
u=f(s, t)
duudsudt
s t
ad uud suuuu dtsdtt s t
右边第1项为移位加速度，在单位时间内，由位置变化产生的速度变化；
右边第2项为当地加速度，在单位时间内，由流量变化产生的速度变化。
26
三哈、工理大(想威海液) 体液压的传运动动主讲微：分贾宝方贤程
静止液体中各质点之间存在着相互挤压的力，叫做内法力，又叫压力 ( 静压力 )p 。作用方向总是沿着法线向内的。