三维程序，怎么做都不能收敛，期待高人帮忙！！

abcdefg987

模拟电弧产生的，热电耦合和磁场耦合（两个步骤）
第一步运用SOLID69（前面写的PLANE67是为了划分网格，我的三维网格是有二维旋转而成），第二步运用SOLID97（尝试运用SOLID117，马上出错，不知道是什么原因）。这样做的结果是死活都不能收敛。无论改变什么收敛条件，还请各位高人看看是什么原因。第一步很快，第二步由于不能收敛，迭代很长，其实这也正是问题所在。
Finish
/clear
/PREP7  
ET,1,PLANE67
KEYOPT,1,3,1
MPTEMP,1,273,2500,5000,7500,10000,12500
MPTEMP,7,15000,17500,20000
MPDATA,DENS,1,1,1.67,0.2,0.1,0.07,0.04,0.03
MPDATA,DENS,1,7,0.02,0.015,0.014
MPDATA,KXX,1,1,0,0.1,0.2,0.3,0.6,1.6
MPDATA,KXX,1,7,2.4,2.0,2.2  
MPDATA,RSVX,1,1,1000,100,1,1.3e-3,3.3e-4,1.6e-4
MPDATA,RSVX,1,7,1.2e-4,9.8e-5,8.5e-5
MPDATA,C,1,1,521,521,521,600,1250,6000
MPDATA,C,1,7,10000,4000,2500
MPDATA,VISC,1,1,2e-5,7e-5,1e-4,2.2e-4,2.7e-4,2e-4
MPDATA,VISC,1,7,6e-5,3e-5,2.6e-5
MPDATA,DENS,2,,7200
MPDATA,KXX,2,,20
MPDATA,RSVX,2,,1/770000
MPDATA,DENS,3,,19350
MPDATA,RSVX,3,,0.0000000528
MPDATA,KXX,3,,173
MPDATA,MURX,1,,1
MPDATA,MURX,3,,1
/REPLOT,RESIZE  
TOFFST,0
K,1,0,0,0,  
k,2,0.01,0,0,  
K,3,0.0002,0,0,
K,4,0.0016,0,0,
K,5,0,0.005,0,  
K,6,0.0002,0.005,0,
K,7,0,0.005+0.0014*sqrt(3),0,   
K,8,0.0016,0.005+0.0014*sqrt(3),0,  
K,9,0.01,0.005+0.0014*sqrt(3),0,
K,10,0.0016,0.005,0,
K,11,0.01,0.005,0,  
A,5,6,8,7   
A,1,3,6,5   
A,3,4,10,6     
A,6,10,8  
A,8,9,11,10   
A,10,11,2,4   
LGLUE,ALL   
AGLUE,ALL  
ASEL,S,AREA,,2,6
AATT,1,,1,0,
ASEL,S,AREA,,1
AATT,3,,1,0,
ALLSEL,ALL
ESIZE,0.0002,0,
MSHKEY,1  
AMESH,ALL

/PNUM,KP,1  
/PNUM,AREA,1
ET,2,SOLID69
ESIZE,0,20,
TYPE,2   
MAT,1   
VROTAT,4,5,2,3,6,,1,7,90,,
TYPE,2   
MAT,3         
VROTAT,1,,,,,,1,7,90,,
ACLEAR,1,6,
/VIEW,1,-1,1,1
APLOT
FINISH  
/SOL
TUNIF,10000,
DA,11,TEMP,1000,0
ASEL,S,AREA,,27,28
ASEL,A,AREA,,1
ASEL,A,AREA,,17
ASEL,A,AREA,,9
DA,ALL,TEMP,3000,0
ASEL,S,AREA,,15
ASEL,A,AREA,,19
ASEL,A,AREA,,23
DA,ALL,TEMP,5000,0
DA,ALL,VOLT,0,0
ASEL,S,AREA,,27
NSLA,S,1
F,ALL,AMPS,-160
ALLSEL,ALL
SOLVE
SAVE
FINISH
PHYSICS,CLEAR   
/PREP7
ET,2,SOLID97
MPTEMP,1,273,2500,5000,7500,10000,12500
MPTEMP,7,15000,17500,20000
MPDATA,DENS,1,1,1.67,0.2,0.1,0.07,0.04,0.03
MPDATA,DENS,1,7,0.02,0.015,0.014
MPDATA,KXX,1,1,0,0.1,0.2,0.3,0.6,1.6
MPDATA,KXX,1,7,2.4,2.0,2.2  
MPDATA,RSVX,1,1,1000,100,1,1.3e-3,3.3e-4,1.6e-4
MPDATA,RSVX,1,7,1.2e-4,9.8e-5,8.5e-5
MPDATA,C,1,1,521,521,521,600,1250,6000
MPDATA,C,1,7,10000,4000,2500
MPDATA,VISC,1,1,2e-5,7e-5,1e-4,2.2e-4,2.7e-4,2e-4
MPDATA,VISC,1,7,6e-5,3e-5,2.6e-5
MPDATA,DENS,2,,7200
MPDATA,KXX,2,,20
MPDATA,RSVX,2,,1/770000
MPDATA,DENS,3,,19350
MPDATA,RSVX,3,,0.0000000528
MPDATA,KXX,3,,173
MPDATA,MURX,1,,1
MPDATA,MURX,3,,1
/REPLOT,RESIZE  
TOFFST,0
FINISH  
/SOL
TUNIF,10000,
DA,11,TEMP,1000,0
ASEL,S,AREA,,27,28
ASEL,A,AREA,,1
ASEL,A,AREA,,17
ASEL,A,AREA,,9
DA,ALL,TEMP,3000,0
ASEL,S,AREA,,15
ASEL,A,AREA,,19
ASEL,A,AREA,,23
DA,ALL,TEMP,5000,0
ALLSEL,ALL
LDREAD,JS,,,,,,RST
CNVTOL,AMPS,,,,-1
SOLVE
FINISH
SAVE

abcdefg987

没有人可以看看吗？
急等高人指点。

fawwi

没有图形，你把图形附上