求助：如何在模型上加线均布载荷

fzch

我是个新手，最近在压轧辊模型上加线均布载荷时遇到困难，我也尝试将载荷加在节点上，但线上的节点并不均匀，加上载荷后很难看，我是用solid45划分的网格，求求大]虾们一定要帮我啊！

fzch

venture

图呢？

fzch

venture

网格划分太差了。简单点搞就用sweep扫一下。复杂点就把轴心取个正方形划。这样圆周上就是直线了，再用你开始的方法把力加在节点上。把solid45改为solid95单元。

[ 本帖最后由 venture 于 2006-11-10 11:34 编辑 ]

fzch

谢谢你！venture，好人哪！

venture

可以参考一下下面的这个，它是划球的，道理和你划柱一样。
/prep7
ET,1,SOLID95   !  20 节点六面体单元
BLC4, , ,6,1,.03
BLC4, , ,9,3,3           !  又试了一下，此处将最后的 3 改为 0.6，炸药部分只分为 4 层，可能更好一点
!*
FLST,2,2,6,ORDE,2   
FITEM,2,1   
FITEM,2,-2  
VOVLAP,P51X
!*
FLST,2,4,3  
FITEM,2,14  
FITEM,2,15  
FITEM,2,7   
FITEM,2,6   
A,P51X  
!*
FLST,2,4,3  
FITEM,2,15  
FITEM,2,16  
FITEM,2,8   
FITEM,2,7   
A,P51X  
!*
FLST,3,2,5,ORDE,2   
FITEM,3,7   
FITEM,3,9   
VSBA,       3,P51X  
!*
numcmp,all  
!*
FLST,2,4,3  
FITEM,2,10  
FITEM,2,14  
FITEM,2,7   
FITEM,2,3   
A,P51X  
VSBA,       3,      17  
!*
numcmp,all  
!*
k,,18   
k,,,18  
!*
arc,16,17,1,18  
!*
FLST,2,3,3  
FITEM,2,2   
FITEM,2,16  
FITEM,2,17  
A,P51X  
!*
FLST,2,1,5,ORDE,1   
FITEM,2,19  
FLST,8,2,3  
FITEM,8,2   
FITEM,8,17  
VROTAT,P51X, , , , , ,P51X, ,-90, ,  
!*
VOVLAP,all
!*
numcmp,all  
!*  
LEXTND,28,10,18,1   
!*  
LEXTND,13,14,18,1   
!*  
LEXTND,16,13,18,1   
!*  
LEXTND,21,15,18,1   
!*
FLST,2,4,3  
FITEM,2,19  
FITEM,2,10  
FITEM,2,14  
FITEM,2,20  
A,P51X  
!*
FLST,2,4,3  
FITEM,2,20  
FITEM,2,14  
FITEM,2,13  
FITEM,2,21  
A,P51X  
!*
FLST,2,4,3  
FITEM,2,15  
FITEM,2,14  
FITEM,2,20  
FITEM,2,22  
A,P51X  
!*
FLST,3,3,5,ORDE,2   
FITEM,3,23  
FITEM,3,-25
VSBA,       5,P51X  
!*
FLST,2,4,4,ORDE,2   
FITEM,2,35  
FITEM,2,-38
LDELE,P51X, , ,1
!*
numcmp,all  
!*
FLST,5,9,4,ORDE,6   
FITEM,5,33  
FITEM,5,35  
FITEM,5,37  
FITEM,5,-38
FITEM,5,40  
FITEM,5,-44
CM,_Y,LINE  
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y   
!*  
LESIZE,_Y1,1.2, , , , , , ,1  
!*  
FLST,5,7,4,ORDE,5   
FITEM,5,29  
FITEM,5,-32
FITEM,5,34  
FITEM,5,36  
FITEM,5,39  
CM,_Y,LINE  
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y   
!*  
LESIZE,_Y1,0.8, , ,3, , , ,1  
FLST,5,8,4,ORDE,7   
FITEM,5,12  
FITEM,5,14  
FITEM,5,-15
FITEM,5,18  
FITEM,5,-19
FITEM,5,22  
FITEM,5,-24
CM,_Y,LINE  
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y   
!*  
LESIZE,_Y1,0.6, , ,1, , , ,1
!*  
FLST,5,1,4,ORDE,1   
FITEM,5,17  
CM,_Y,LINE  
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y   
!*  
LESIZE,_Y1,0.6, , ,1, , , ,1
!*  
FLST,5,8,4,ORDE,2   
FITEM,5,1   
FITEM,5,-8  
CM,_Y,LINE  
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y   
!*  
LESIZE,_Y1,0.4, , ,1, , , ,1
!*  
FLST,5,6,4,ORDE,6   
FITEM,5,13  
FITEM,5,16  
FITEM,5,21  
FITEM,5,25  
FITEM,5,-26
FITEM,5,28  
CM,_Y,LINE  
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y   
!*  
LESIZE,_Y1,0.3, , ,2, , , ,1
!*  
FLST,5,4,4,ORDE,2   
FITEM,5,9   
FITEM,5,-12
CM,_Y,LINE  
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y   
!*  
LESIZE,_Y1, , ,3, , , , ,1  
!*  
FLST,5,7,6,ORDE,2   
FITEM,5,1   
FITEM,5,-7  
CM,_Y,VOLU  
VSEL, , , ,P51X
CM,_Y1,VOLU
CHKMSH,'VOLU'   
CMSEL,S,_Y  
!*  
MSHAPE,0,3d
MSHKEY,1
VMESH,_Y1   
MSHKEY,0
!*  
CMDELE,_Y   
CMDELE,_Y1  
CMDELE,_Y2  
!*  
FLST,3,7,6,ORDE,2   
FITEM,3,1   
FITEM,3,-7  
FLST,3,7,6,ORDE,2   
FITEM,3,1   
FITEM,3,-7  
VSYMM,X,P51X, , , ,0,0  
!*
GPLOT   
!*
NUMMRG,NODE,0.0001,0.0001, ,LOW   
NUMMRG,KP,0.0001,0.0001, ,LOW
WPSTYLE,,,,,,,,0
EPLOT   
（以上命令流系转贴）