[讨论]稳态接触热分析问题

开心

几块金属板子放在一起，其热传递分析有两种情况,A:一种是将几块板子看成整体,板子间不存在热阻,B:另一种是扳子间存在热阻,但是B情况分析时有问题,请各位大虾看看
A:不考虑热阻时的命令流
/prep7
et,1,plane55
KEYOPT,1,3,1
mp,kxx,1,22.5
mp,dens,1,8889      
mp,c,1,390
rectng,0,0.3,0,0.1
rectng,0,0.2,0.1,0.3
rectng,0,0.5,0.3,0.5
aglue,all
mshape,0,2d
mshkey,2
type,1
mat,1
esize,0.01
amesh,all
/solu
lsel,s,,,11
nsll,s,1
d,all,temp,700
lsel,s,,,1
nsll,s,1
d,all,temp,30
allsel
outpr,basic,all
/solu
slove
/post1
plnsol,temp

B:考虑热阻时,采用接触模式
/prep7
et,1,plane55
KEYOPT,1,3,1
mp,kxx,1,22.5
mp,dens,1,8889      
mp,c,1,390
et,2,48
KEYOPT,2,1,1
keyopt,2,3,1
mp,mu,2,0.2
R,2,6e3, , , , ,1
r,3,6e3,,,,,1
rectng,0,0.3,0,0.1
rectng,0,0.2,0.1,0.3
rectng,0,0.5,0.3,0.5
mshape,0,2d
mshkey,2
type,1
mat,1
esize,0.01
amesh,all
/pnum,line,1
lsel,s,,,5
nsll,s,1
cm,steel,node
lsel,s,,,3
nsll,s,1
cm,plate,node
allsel
lsel,s,,,9
nsll,s,1
cm,aaa,node
lsel,s,,,7
nsll,s,1
cm,bbb,node
type,2
mat,2
real,2
gcgen,steel,plate
gcgen,plate,steel
allsel
type,2
mat,2
real,3
gcgen,aaa,bbb
gcgen,bbb,aaa
fini
/solu
d,all,temp,30
allsel
lsel,s,,,11
nsll,s,1
d,all,temp,700
outpr,basic,all
fini
/solu
slove