程序运行一会就退出界面？

likefeng

大家好我找了一个接触分析的例子，但运行一会就退出界面，为什么？
fini
/cle
/prep7
/title,plastic snap-fit connector

et,1,42,,,3
et,2,42,,,3
mp,ex,1,2.8e3
r,1,5
et,3,48,,,1
k,1,10
k,2,20
k,3,15,18.5
k,4,10,20
k,5,12.5,30
k,6,20,30

l,1,3
l,3,4
l,4,5
l,5,6
l,6,2
l,2,1
al,all

lgen,2,1,3,1
k,11,5
k,12,5,30
l,11,7
l,11,12
l,12,10
lsla,s
lsel,invert
al,all
lsel,all
rectng,0,15,0,10
asba,2,3

agen,2,4,,,0,30,0,,0,1
asel,s,,,4
aatt,1,1,2
asel,all

esize,4
amesh,all
fini
/solution
nsel,s,loc,y,0
d,all,all
nsel,s,loc,y,60
d,all,uy
nsel,r,loc,x,5
d,all,ux
nsel,all
fini

/prep7
mp,mu,3,0.2
r,3,6e3
r,4,6e3

lsel,s,,,9
lsel,a,,,19
nsll,s,1
cm,snapins,node
lsel,s,,,3
nsll,s,1
cm,snapprg,node
lsel,s,,,8
nsll,s,1
cm,pullins,node
lsel,s,,,2
nsll,s,1
cm,pullprg,node
lsel,all
nsel,all
type,3
mat,3,real,3
gcgen,snapins,snapprg
gcgen,snapprg,snapins

real,4
gcgen,pullins,pullprg
gcgen,pullprg,pullins

fini

/solu
pred,on
autot,on
nsubst,10,100,5
outres,all,all

nsel,s,loc,y,60
d,all,uy,-30
nsel,all
solve

nsel,s,loc,y,60
d,all,uy,-27
nsel,all
lnsr,on
solv
fini

/post1
set,list
set,,,,,0.8
esel,s,type,,3
etable,st,nmisc,1
etable,gap,nmisc,3
etable,length,nmisc,4
esel,s,stab,st,1,2
esort,etab,gap,1
pretab
esel,all
/dscal,,1
/plops,minm,0
/edge,,1
esel,u,type,,3
set,first
pldi
/user
set,,,,,0.8
plns,s,eqv
/cont,,,user
fini

/posr26
nsol,2,44,u,y,disp
rfor,3,44,f,y
rfor,4,59,f,y
rfor,5,56,f,y
add,6,3,4,5,force
add,2,2,,,,,,,-1
xvar,2
plva,6
fini

xsdcaifu

是不是计算不收敛，程序自动退出啊

likefeng

不清楚，那么怎样才能收敛呢？