本人钱不多,不然就多悬赏了
问题描述:
板厚度为8mm,板上空直径为25mm,管子为参数为19.5*1.2mm,中间填充橡胶垫圈,橡胶垫圈外直径为26mm,内直径径小于19.5,问如何连接比较合理,由于板上有180个孔,20块板,用接触之类的不现实,希望能用杆,梁,或者约束方程来模拟
平板apdl如下:
/prep7
et,1,shell63
mp,ex,1,190.5e9 !q235钢材
mp,prxy,1,0.3
mp,dens,1,7850
r,1,8e-3 !板截面属性
*set,kd1,32e-3 !管板孔横向间距
*set,kd2,28e-3 !管板孔竖向间距
*set,jl,496e-3 !板长
*set,jw,454e-3 !板宽
*set,jr,(25e-3)/2 !板孔半径
rectng,-jl/2,jl/2,-jw/2,jw/2 !板矩形
cm,j_rect,line
cyl4,0.232,0.185,0.0125 !右上端孔
cyl4,0.216,0.157,0.0125
agen,3,2,3,,,-0.056
agen,15,2,7,,-0.032
*get,n_ja1,area,,num,max
asel,s,,,2,n_ja1
agen,2,all,,,,-0.23
cm,a_ja,area
allsel
asba,1,a_ja !生成多孔板
lsel,u,,,j_rect !选择孔附带的线,并定义线属性
lesize,all,,,2
allsel
!竖向分割,通过工作平面切割面,以便划分网格
wpcsys,-1,0
wprota,,,90
wpoffs,,,-(jl/2-kd1/2)
*do,i,1,30
asbw,all
asel,u,loc,x,-jl/2+(i-1)*kd1/2,i*kd1/2-jl/2
wpoffs,,,kd1/2
*enddo
allsel
!横向分割
wpcsys,-1,0
wprota,,90
asbw,all
asel,u,loc,y,-1,0
wpoffs,,,-0.027 !右端盖板位置为54
asbw,all
wpoffs,,,-0.018
asel,u,loc,y,-1,0.027
*do,i,1,11
asbw,all
asel,u,loc,y,-1,0.031+(i-1)*kd2/2
wpoffs,,,-kd2/2
*enddo
wpoffs,,,-3e-3 !上端留25mm线段与侧板共节点配合
asbw,all
wpoffs,,,-12.5e-3 !两端25*20方梁位置
asbw,all
allsel
wpcsys,-1,0
wprota,,90
asel,u,loc,y,0,1
wpoffs,,,0.027
asbw,all
wpoffs,,,0.018
*do,i,1,11
asbw,all
asel,u,loc,y,-0.031-(i-1)*kd2/2,0
wpoffs,,,kd2/2
*enddo
wpoffs,,,3e-3
asbw,all
wpoffs,,,12.5e-3
asbw,all
wpcsys,-1,0
allsel
numcmp,kp
numcmp,line
numcmp,area
esize,0.02
mshape,0,2D
aatt,1,1,1
amesh,all |