SolidWorks2012运动仿真完全教程

Fatigue
Optimization COSMOSMotion Post-dynamics
COSMOSEMS Electromagnetic
What is Motion Simulation 什么是运动仿真?
▪ Study of moving systems or mechanisms
▪ 运动系统或机构研究
Design Validation Products设计仿真产品
Designer
Static
COSMOSWorks
Adv. Professional
Professional
Vibration & Buckling
Thermal
Drop Test
Nonlinear
COSMOSFloWorks Flow Simulation
– Movement of part(s) under enforced or constrained motion
外加或强制运动下的部件动作
– Fully controlled and only one possible motion result irrespective of force and mass
a Concentric joint. – 一个正交同轴配合转化为同轴副
One Coincident and One Orthogonal Concentric mates in
SolidWorks becomes a Revolute joint. – 一个重合和一个正交同轴配合转化为一个转动
副
One Point to Point coincident mate in SolidWorks becomes a spherical joint
– 一个点对点重合配合转化为一个球副。
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约束映射
▪ 什么是约束映射?
▪
是指在2个指定的零件之间，自动地、智能的将装配关系
转化为最小的机构运动幅的形式。基本的约束类型可以合并为
简单的机构运动幅，例如
e.g. 1 coincident joints becomes a planar joint 2 orthogonal coincident joints becomes a translational joint 3 orthogonal coincident joints becomes a fixed joint 1 Coincident and 1 orthogonal concentric becomes a revolute joint
– Applied forces to the system (Dynamics) 系统的作用力（动力学）
– Driving motions (Motors or Actuators) 驱动运动（运动或致动器）
– Time 时间
Mechanism types机构类型
▪ Kinematic System运动学系统
▪ Degrees of freedom自由度
– Rigid body刚性物体 – Grounded parts固定零件 – Moving parts运动零件
▪ Constraints约束
– Restrictions placed on a part’s movement in
specific degrees of freedom
Constraint Mapping约束映射
▪ Mapping of SolidWorks assembly mates (constraints) to COSMOSMotion joints.
映射SolidWorks装配体配合（约束）为 COSMOSMotion的运动副
▪ 100+ ways of defining SolidWorks mates.
依赖于力 的部分约束和无限数量的结果
– Greater than zero degrees of freedom
自由度数大于零
Understanding Basics运动基础
▪ Mass and Inertia质量和惯性
– Newton’s First Law牛顿第一定律 – Conservation of momentum动力守恒
▪ Motion of a system is determined by
运动系统定义：
– Mechanical joints connecting the parts 零件的机械连接
– The mass and inertia properties of the components 部件的质量和惯性特性
100多种定义SolidWorks配合的方法
▪ Basic constraint types are merged to simplified mechanical joints.
基础约束类型合并为简化的机械约束
– One Orthogonal Concentric mate in SolidWorks becomes
不考虑力和质量的全约束和单一运动的结果
– Zero degree of freedom
零自由度
▪ Dynamic System动力学系统
– Movement of part(s) under free motion subject to forces
自由运动物体与力作用下的零件运动
– Partially controlled and infinite number of results depending on forces
COSMOSMotion 运动仿真培训
COSMOSMotion 2008
About this course关于本课程
▪ Prerequisites前提条件 ▪ Course Design Philosophy课程设计原理 ▪ Using this book本书使用方法 ▪ A note about files配套光盘说明 ▪ Conventions used in this book本书中采用的原理 ▪ Class Introductions课程介绍
作用在零件运动上的特定自由度的限制
y
– Mechanical joints are connections that restrict
the movement of one part to another
x
– 机械关节是约束零件相互运动的连接
▪ Joint motion运动副
▪ Gravity重力
Pendulum restrained to pivot about mounting point