[原创]求教一温度应力问题

河砂

我用的是6.1，单元总数3万六千多，计算瞬态温度场用第三类边界，气温随时间变化，共60子步。计算后保存如下：save,transtenp,dbt。下面计算温度应力，也是60子步，计算完后保存如下：save,transtres,dbs。计算完后再打开文件transtenp.dbt，发现温度场的子步数据被应力场所覆盖，出现如下警告：“Cumulative iteration 1 may have been solved using different model or   
boundary condition data than currently stored.  POST1 results may be   
  erroneous unless you RESUME from a Jobname.DB file for this substep.   
/COM,ANSYS RELEASE  6.1 ”。而计算小例题时却不会出现这种情况。请各位指点一下是怎么回事，在此先谢了！
附加载命令流：
/prep7
etchg,stt
et,1,solid70
mp,kxx,1,1263.774e-2
mp,dens,1,2450e-6
mp,c,1,0.9672
mp,nuxy,1,0.167
*dim,air,table,60,1
*SET,air(1,0),1,2,3,4,5,6,7,8,9,10
*SET,air(11,0),11,12,13,14,15,16,17,18,19,20
*SET,air(21,0),21,22,23,24,25,26,27,28,29,30
*SET,air(31,0),31,32,33,34,35,36,37,38,39,40
*SET,air(41,0),41,42,43,44,45,46,47,48,49,50
*SET,air(51,0),51,52,53,54,55,56,57,58,59,60
*SET,air(1,1),-2.7,0.1,2.1,1.6,0.4,1.7,1.6,4.4,5.7,5.4
*SET,air(11,1),2.9,6.7,7.2,12.3,15,14,14.6,15.1,19.1,24.6
*SET,air(21,1),17.7,18.3,21.5,21.2,24,25.1,23.4,26.5,25.6,24.1
*SET,air(31,1),25.2,22.5,23.9,29.5,30.1,28.3,23.5,23.8,26.5,19.9
*SET,air(41,1),22.5,23.5,22.9,21.5,17.7,16.8,13.6,14.8,14.2,16.6
*SET,air(51,1),9.2,6,7.8,6.6,3.7,2.3,0.8,0.4,2.4,3.2
*dim,temprt,table,60,1
*set,temprt(1,0),1,2,3,4,5,6,7,8,9,10
*set,temprt(11,0),11,12,13,14,15,16,17,18,19,20
*set,temprt(21,0),21,22,23,24,25,26,27,28,29,30
*set,temprt(31,0),31,32,33,34,35,36,37,38,39,40
*set,temprt(41,0),41,42,43,44,45,46,47,48,49,50
*set,temprt(51,0),51,52,53,54,55,56,57,58,59,60
*SET,temprt(1,1),-0.7,2.1,4.1,4.6,3.4,3.7,3.6,6.4,7.7,7.4
*SET,temprt(11,1),4.9,7.7,9.2,14.3,16,15.5,16.6,16.6,18.7,22.6
*SET,temprt(21,1),19.7,16.3,19.5,21.5,23,22.1,25.4,24.5,23.6,26.1
*SET,temprt(31,1),26.2,24.5,22.9,27.5,28.1,26.3,25.5,24.8,24.5,21.9
*SET,temprt(41,1),21.5,22.5,20.9,19.5,18.7,15.4,14.6,15.8,14.5,15.6
*SET,temprt(51,1),11.2,8,9.8,8.6,5.7,4.3,2.8,2.4,4.4,5.9
/solu
antype,trans,new
trnopt,full
timint,on
tunif,7
time,60
deltim,1
outres,all,all
！底部
asel,s,area,,269
asel,a,area,,573
... ...
asel,a,area,,5825
sfa,all,,conv,5000.668e-4,%air%
allsel
solve
save,transtemp,dbt
/prep7
etchg,tts
et,1,solid45
mp,ex,1,3.51e6
mp,nuxy,1,0.167
mp,alpx,1,0.7e-5
antype,trans
/solu
outpr,all,all
outres,all,all
nsel,s,loc,x,-600
nsel,a,loc,x,2470
d,all,ux,0
allsel
nsel,s,loc,y,-680
d,all,all,0
allsel
nsel,s,loc,z,1470
d,all,uz,0
allsel
nsel,s,loc,z,0
dsym,symm,z
allsel
tref,7
*do,ik,1,60,1
time,ik
ldread,temp,,,ik,,,rth
kbc,1
solve
*enddo
/post1
plnsol,s,1
save,transtres,dbs