【原创】壳梁组合中，为什么梁的方向点选取后，筋显示出来不对呀？？

xingyue-tonghua

yujb025 ，我也按你所说的方法做了一个壳梁组合模型，可是，梁怎么是比较奇怪的模型啊？？？  
我实在是不知道原因，大家来看看吧  
命令流如下：  
  
/prep7  
ET,1,SHELL99 !线性层单元  
!*  
ET,2,BEAM188  
!*  
*SET,_RC_SET,1,  
R,1  
!*  
RMODIF,1,1,46,1,0,0,0,0  
!*  
RMODIF,1,13,1,45,0.0001,1,90,0.0001,  
RMODIF,1,19,1,-45,0.0001,1,0,0.0001,  
RMODIF,1,25,1,45,0.0001,1,0,0.0001,  
RMODIF,1,31,1,-45,0.0001,1,0,0.0001,  
RMODIF,1,37,1,90,0.0001,1,45,0.0001,  
!*  
RMODIF,1,43,1,-45,0.0001,1,-45,0.0001,  
RMODIF,1,49,1,0,0.0001,1,90,0.0001,  
RMODIF,1,55,1,45,0.0001,1,-45,0.0001,  
RMODIF,1,61,1,90,0.0001,1,0,0.0001,  
RMODIF,1,67,1,0,0.0001,1,-45,0.0001,  
!*  
RMODIF,1,73,1,45,0.0001,1,90,0.0001,  
RMODIF,1,79,1,45,0.0001,1,0,0,  
RMODIF,1,85,1,0,0,1,0,0,  
RMODIF,1,91,1,0,0,1,0,0,  
RMODIF,1,97,1,0,0,1,0,0,  
!*  
RMODIF,1,103,1,0,0,1,0,0,  
RMODIF,1,109,1,0,0,1,0,0,  
RMODIF,1,115,1,0,0,1,0,0,  
RMODIF,1,121,1,0,0,1,0,0,  
RMODIF,1,127,1,0,0,1,0,0,  
!*  
RMODIF,1,133,1,0,0,1,0,0,  
RMODIF,1,139,1,0,0,1,0,0,  
RMODIF,1,145,1,0,0,1,0,0,  
r,2  
!*  
MPTEMP,,,,,,,,  
MPTEMP,1,0  
MPDATA,EX,1,,1.35e11  
MPDATA,EY,1,,8.8e9  
MPDATA,EZ,1,,8.8e9  
MPDATA,PRXY,1,,0.33  
MPDATA,PRYZ,1,,0.0215  
MPDATA,PRXZ,1,,0.0215  
MPDATA,GXY,1,,4.47e9  
MPDATA,GYZ,1,,4.47e9  
MPDATA,GXZ,1,,4.47e9  
MPTEMP,,,,,,,,  
MPTEMP,1,0  
MPDATA,DENS,1,,2600  
MPTEMP,,,,,,,,  
MPTEMP,1,0  
MPDATA,EX,2,,300e9  
MPDATA,PRXY,2,,0.3  
MPTEMP,,,,,,,,  
MPTEMP,1,0  
MPDATA,DENS,2,,4800  
  
SECTYPE, 1, BEAM, T, , 0  
SECOFFSET, CENT  
SECDATA,0.005,0.005,0.001,0.001,0,0,0,0,0,0  
  
K,1,0,-1/3,0,  
K,2,1,-2.5/6,0,  
K,3,2,-1/3,0,  
K,10,3.522,-0.97/6,-3.0616,  
K,11,4.0006,-1.2/6,-3.0616,  
K,12,4.4792,-0.97/6,-3.0616,  
  
bspline,1,2,3  
  
bspline,10,11,12  
    
askin,1,2  
   
ldiv,1,,,3  
ldiv,2,,,3  
  
l,4,6  
l,5,7  
asbl,all,all,,delete,keep  
  
allsel,all  
numcmp,all  
  
k,106,3.840465,0,-3.0616!定义方向点  
  
lsel,s,,,1,2  
lsel,a,,,5,8  
lesize,all,,,3  
lsel,inve  
lesize,all,,,5  
aatt,1,1,1  
  
mshkey,1  
mshape,0,2d  
amesh,all  
  
lsel,s,,,9  
latt,2,2,2,,106  
lmesh,all  
  
esel,all  
eplot  
/eshape,1  
/rep

xingyue-tonghua

这是单元图（材料号）

xingyue-tonghua

雨人姐姐，我都发帖子好长时间了，怎么没人给我回复呀？？
着急！！！

xingyue-tonghua

55555555555555555
怎么没人回复呀？？？

xingyue-tonghua

好失望哦

maxguo2002

这个我做过，你再在要加梁的地方重建一条线，然后把梁加在这条直线上就可以，你试试看，应该可以的

xingyue-tonghua

我现在做的是一个加筋壳的问题，壳是复合材料层合板，我选用的是shell99单元。
你所说的方法，我以前用过，静力分析看不出问题，可是，在进行模态分析后，看振型就发现梁和板是分开的，想问问你有没有碰到过类似的问题。
真的非常着急，谢谢啦

maxguo2002

梁和板分开的原因应该是梁上节点和板上节点不是重合的，所以它会分开的，我也试过了，你把节点merge一下吧，看行不行！