hunter 发表于 2007-4-14 12:23

求助：圆柱壳屈曲分析

为什么我在对圆柱壳进行特征值屈曲分析是施加压力时没有结果，而施加一个力时可以，请高手赐教！

shimly521 发表于 2007-4-14 13:02

不太明白你的意思

xsdcaifu 发表于 2007-4-14 14:50

施加的压力有什么特点，如果是对称的话应该是不会屈曲的
我做旋转壳的屈曲分析施加压力就可以啊

hunter 发表于 2007-4-14 16:45

多谢楼上指点。

hunter 发表于 2007-4-14 19:24

这是我的命令流请指点,非常感谢!
/units,si   
/PREP7
!*
ET,1,SHELL63
!*
R,1,0.009, , , , , ,
RMORE, , , ,
RMORE   
RMORE, ,
!*
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,2e11   
MPDATA,PRXY,1,,0.3
CYL4, , ,1.2, , , ,0.685
VDELE,       1
FLST,2,2,5,ORDE,2   
FITEM,2,1   
FITEM,2,-2
ADELE,P51X, , ,1
wpro,,,-30.000000   
wpro,,,-30.000000   
wpro,,,-30.000000   
FLST,2,2,5,ORDE,2   
FITEM,2,3   
FITEM,2,-4
ASBW,P51X   
FLST,2,4,5,ORDE,4   
FITEM,2,1   
FITEM,2,-2
FITEM,2,5   
FITEM,2,-6
AGLUE,P51X
/DIST,1,1.08222638492,1
/REP,FAST   
/VIEW,1,,,1
/ANG,1
/REP,FAST   
/DIST,1,1.08222638492,1
/REP,FAST   
/USER,1   
/VIEW,1, -0.161276477605    , -0.206184459926    ,0.965131009893
/ANG,   1,   1.39709431221
/REPLO
/DIST,1,1.08222638492,1
/REP,FAST   
/AUTO,1
/REP,FAST   
/VIEW,1,1,1,1   
/ANG,1
/REP,FAST   
APLOT   
ESIZE,0.06,0,   
MSHAPE,0,2D
MSHKEY,1
!*
FLST,5,4,5,ORDE,4   
FITEM,5,1   
FITEM,5,-2
FITEM,5,5   
FITEM,5,-6
CM,_Y,AREA
ASEL, , , ,P51X
CM,_Y1,AREA
CHKMSH,'AREA'   
CMSEL,S,_Y
!*
AMESH,_Y1   
!*
CMDELE,_Y   
CMDELE,_Y1
CMDELE,_Y2
!*
FINISH
/SOL
FLST,2,4,4,ORDE,2   
FITEM,2,1   
FITEM,2,-4
!*
/GO
DL,P51X, ,ALL,
FLST,2,4,5,ORDE,4   
FITEM,2,1   
FITEM,2,-2
FITEM,2,5   
FITEM,2,-6
/GO
!*
SFA,P51X,1,PRES,800000
PSTRES,1
/STATUS,SOLU
SOLVE   
!*
!*
!*
FINISH
/SOLUTION   
ANTYPE,1
!*
!*
!*
BUCOPT,LANB,1,0,0   
!*
MXPAND,1,0,1e8,0,0.001,
/STATUS,SOLU
SOLVE
页: [1]
查看完整版本: 求助：圆柱壳屈曲分析