fzch 发表于 2006-11-10 10:37

求助:如何在模型上加线均布载荷

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 发表于 2006-11-10 10:44

压榨辊图

venture 发表于 2006-11-10 10:53

图呢?

fzch 发表于 2006-11-10 10:58

压榨辊图

venture 发表于 2006-11-10 11:15

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 发表于 2006-11-10 13:48

谢谢你!venture,好人哪!

venture 发表于 2006-11-10 14:15

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)
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