接触分析 结果不收敛
各位帮忙看一下，在接触分析时遇到结果不收敛，非常感谢！命令流：
finish
/clear
/title，3D pretensile in mitul-layer cicular pipe
/prep7
et,1,solid95
et,2,conta174
et,3,targe170
keyopt,2,5,3
mp,ex,1,2.2e6
mp,prxy,1,0.26
mp,mu,2,0.2
r,1
r,2,,,1,0.1
!/view,1,1,1,1
cyl4,,,0.04,,0.06,360,0.01
cyl4,,,0.06,,0.08,360,0.01
allsel
wprota,,90
vsbw,all
wprota,,,90
vsbw,all
numcmp,all
wpstyle
vsel,s,,,1,4
cm,v1,volu
vsel,s,,,5,8
cm,v2,volu
allsel
cmsel,s,v1
vatt,1,1,1
esize,0.005
vmesh,v1
cmsel,s,v2
vatt,1,1,1
esize,0.01
vmesh,v2
allsel
csys,1
cmsel,s,v2
aslv
asel,r,loc,x,0.06
nsla,s,1
esln,s,0
real,2
type,2
mat,2
esurf
cmsel,s,v1
aslv
asel,r,loc,x,0.06
nsla,s,1
esln,s,0
type,3
esurf
allsel
cmsel,s,v1
aslv
asel,r,loc,x,0.04
nsla,s,1
d,all,all
allsel,all
cmsel,s,v2
aslv
asel,r,loc,x,0.08
nsla,s,1
sf,all,pres,3.2e2
/psf,pres,2
allsel,all
finish
/solu
nlgeom,on
time,1
nropt,full
nsubst,20
autots,on
outres,all,all
solve
finish
/post1
pldisp
plnsol,u,sum
plnsol,s,eqv
plnsol,s,x
plnsol,s,y
rsys,1
plnsol,u,y
plnsol,u,sum
plnsol,s,x
plnsol,s,y
plnsol,s,xz
plnsol,s,yz
你的接触对中，接触单元和目标单元的法线方向不对。见附图。
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