急！！加载电流热点分析求教

千亿星辰

我想在一个特殊导线上，加载沿Z方向的电流，求解出错！命令流如下，请求大神帮助！帮忙看下啊！
ET,1,SOLID69
MP,EX,1,69E11   
MP,NUXY,1,0.35  
mp,kxx,1,240
mp,rsvx,1,3.24e-3   
k,1,0.010,0.0071,0  
k,2,0.011,0.0071,-0.010
k,3,0.013,0.0071,-0.010
k,4,0.014,0.0071,0  
k,5,0.010,0.00798,0
k,6,0.011,0.00798,-0.010
k,7,0.013,0.00798,-0.010
k,8,0.014,0.00798,0
v,1,2,3,4,5,6,7,8   
WPOFFS,,,-0.050
CSYS,4  
VSYMM,Z,1,,,,   
WPOFFS,,,0.050  
CSYS,0  
block,0.011,0.013,0.0071,0.00798,-0.010,-0.090  
VADD,1,2,3  
vatt,1,all  
kwpave,7
vsbw,all
kwpave,15   
vsbw,all
mshkey,1
mshape,0,3d
esize,0.0005
vmesh,all   
nsel,s,loc,z
cp,1,volt,all   
*get,nnode,node,,num,max
nsel,s,,,nnode  
f,all,amps,100  
/VIEW,1,1,2,3   
/ANG,1  
/REP,FAST   
allsel  
finish  
/solu   
solve

yutingting1986

这个在分析的时候需要给定一个温度的初始值吧？因为这是热电耦合，要不热方程无法求解，我是这么想的，你试试吧，而且电流过大不容易收敛，不知道对不对哈