如何简易的建立压力容器的有限元模型

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在建立压力容器模型时,充分考虑模型的对称性,灵活利用 ANSYS 软件的工作平面和坐标系,利用合理的分网工具,可以得到漂亮的有限元模型,如下面的命令流所示:

/prep7
et,1,45
mp,ex,1,2e11
mp,nuxy,1,0.3
!
cylind,0.89,0.8,0,-1.7125,90,270,
wpoff,0,0,-1.7125
wprot,0,90,
cylind,0.47/2,0.37/2,-1.5,0,90,180,
vovlap,all
vsel,s,loc,x,-0.11,0
vdel,all,,,1
vsel,s,loc,y,0.3,0.5
vdel,all,,,1
vsel,s,loc,y,-0.3,0.3
vsbw,all
afillt,21,11,0.1
al,33,50,5
al,37,53,7
alls,all
va,15,13,25,24,11
kgen,2,35, , , ,-0.2, , ,0
lstr,35,15
adrag,54,,,,,,21
vsba,2,16
lsel,s,loc,y,1.5
lsel,u,length,,0,0.06
lesize,all,,,16,
alls,all
vsel,s,loc,y,0.9,1.5
vsweep,all
vsel,s,loc,y,0.89,0.99
vsweep,all
vsel,s,loc,y,0.8,0.89
vsweep,all
asel,s,loc,z,
asel,r,loc,y,0,1
asel,a,loc,y,0
accat,all
alls,all
vsel,s,loc,y,0,0.6
vmesh,all
vsel,s,loc,y,0,-0.6
vmesh,all
alls,all
!
WPCSYS,-1,0
wpoff,0,0,-1.7125
CSWPLA,11,0,1,1,
VSYMM,z,all,
nummrg,all
numcmp,all
wpoff,0,0,-1.7125
CSWPLA,12,0,1,1,
VSYMM,z,all,
nummrg,all
numcmp,all
!
wpoff,0,0,-3.425
wprot,0,-90
sphere,0.89,0.8,90,180,
csys,0
vsel,s,loc,z,-8.0,-6.85
vsbw,all
alls,all
nummrg,all
numcmp,all
vsel,s,loc,z,-8.0,-6.85
vsweep,all

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