西南石油大学ANSYS大作业
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分数：有限元大作业
院系：
专业：
年级：
学号：
姓名：
2017年12月13日
第一题
21210MPa,0.2m,,,0.01m ,210GPa,0.3.(2)p p AB CD EF ==等厚度薄板受到分均布载荷其厚度为杆横截面积为所有材料的弹性模量为泊松比为试用有限元法对该系统进行离散并进行单元和节点编号.
(1)写出离散后各单元的刚度矩阵;
写出整体刚度矩阵和刚度方程;
(3)求解各节点的节点位移;
(4)求解支座反力;
(5)用ANSYS 软件验证以上求解结果并写出详细的命令流程.
一、操作命令
/NOPR ! Suppress printing of UNDO process
/PMACRO ! Echo following commands to log
FINISH ! Make sure we are at BEGIN level
/CLEAR,NOSTART ! Clear model since no SAVE found
! WE SUGGEST YOU REMOVE THIS LINE AND THE FOLLOWING STARTUP LINES /input,menust,tmp,''
/GRA,POWER
/GST,ON
/PLO,INFO,3
/GRO,CURL,ON /CPLANE,1
/REPLOT,RESIZE WPSTYLE,,,,,,,,0
!*
/NOPR
KEYW,PR_SET,1
KEYW,PR_STRUC,1
KEYW,PR_THERM,0
KEYW,PR_FLUID,0
KEYW,PR_ELMAG,0
KEYW,MAGNOD,0
KEYW,MAGEDG,0
KEYW,MAGHFE,0
KEYW,MAGELC,0
KEYW,PR_MULTI,0
/GO
!*
!*
/PREP7
!*
ET,1,BEAM188
!*
ET,2,PLANE183
!*
KEYOPT,2,1,0
KEYOPT,2,3,3
KEYOPT,2,6,0
!*
!*
R,1,0.2,
!*
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,210e9
MPDATA,PRXY,1,,0.3
SECTYPE, 1, BEAM, RECT, , 0 SECOFFSET, CENT
SECDATA,0.1,0.1,0,0,0,0,0,0,0,0,0,0 K,1,,,,
K,2,3,,,
K,3,3,4,,
K,4,3,8,,
K,5,9,8,,
K,6,9,4,,
K,7,12,0,,
K,8,3,4,,
K,9,9,4,,
/DIST,1,1.08222638492,1
/REP,FAST
LSTR, 1, 3
LSTR, 2, 3
LSTR, 7, 6
LSTR, 8, 9
LSTR, 9, 5
LSTR, 5, 4
LSTR, 4, 8
FLST,2,4,4
FITEM,2,4
FITEM,2,5
FITEM,2,6
FITEM,2,7
AL,P51X
CM,_Y,AREA
ASEL, , , , 1
CM,_Y1,AREA
CMSEL,S,_Y
!*
CMSEL,S,_Y1
AATT, 1, 1, 2, 0, 1 CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
FLST,2,1,5,ORDE,1
FITEM,2,1
AESIZE,P51X,0.6,
MSHAPE,0,2D
MSHKEY,0
!*
CM,_Y,AREA
ASEL, , , , 1
CM,_Y1,AREA
CHKMSH,'AREA'
CMSEL,S,_Y
!*
AMESH,_Y1
!*
CMDELE,_Y
CMDELE,_Y1
CMDELE,_Y2
!*
FLST,5,7,4,ORDE,2 FITEM,5,1
FITEM,5,-7
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,S,_Y
!*
!*
CMSEL,S,_Y1
LATT,1,1,1, , , ,1 CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
FLST,5,7,4,ORDE,2 FITEM,5,1
FITEM,5,-7
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,0.6, , , , , , ,1 !*
FLST,2,7,4,ORDE,2 FITEM,2,1
FITEM,2,-7
LMESH,P51X
/PNUM,KP,0
/PNUM,LINE,0
/PNUM,AREA,0
/PNUM,VOLU,0
/PNUM,NODE,1
/PNUM,TABN,0
/PNUM,SVAL,0
/NUMBER,0
!*
/PNUM,ELEM,0
/REPLOT
!*