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北京石油化工学院2026年研究生招生接收调剂公告
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王权富贵贵

新虫 (初入文坛)

[交流] ANSYS热分析加载荷出错,请问到底是什么原因

各位,我用ANSYS仿真生死单元,建模加初始温度载荷稳态分析的时候老出错,请各位给我看看怎么回事:
错误一:Specified degree of freedom constraint TEMP at unused node 7331.      
错误2: Material property DENS of material 1 of element 5 is evaluated at a     
temperature of 0, which is below the supplied temperature range.        
Temperature range checking terminates.   
错误3:There are no active degrees of freedom.                                 
错误4:A reference heat flow value times the tolerance is used by the         
Newton-Raphson method for checking convergence.  The calculated         
reference HT FLOW CONVERGENCE VALUE= 2.970385058E-14 is less than a     
threshold.  This threshold defaults to 1.0e-6 or is specified as        
MINREF on the CNVTOL command.  Check results carefully.     

能解决几个是几个,谢谢各位大神!!!!!!!
命令流:
/prep7
et,1,plane77
et,2,solid70
mptemp,1,25,90,160
mpdata,dens,1,1,8500,8500,8500
mpdata,dens,2,1,1150,1150,1150
mpdata,c,1,1,380,380,380
mpdata,c,2,1,1470,1470,1470
mpdata,kxx,1,1,130,130,130
mpdata,kxx,2,1,0.03,0.03,0.03

rect,0,0.1,0,0.1
asel,s,area,,1
aatt,1
esize,0.004
mshkey,1
mshape,0
amesh,1
extopt,esize,5
extopt,aclear,1
extopt,attr,1,1,1
mat,1
vext,1,,,,,-0.02

rect,0.03,0.07,0.03,0.07
asel,s,area,,7
aatt,2
esize,0.004
mshkey,1
mshape,0
amesh,7
mat,2
vext,7,,,,,0.02
allsel
finish


/prep7
et,1,plane77
et,2,solid70
mptemp,1,25,90,160
mpdata,dens,1,1,8500,8500,8500
mpdata,dens,2,1,1150,1150,1150
mpdata,c,1,1,380,380,380
mpdata,c,2,1,1470,1470,1470
mpdata,kxx,1,1,130,130,130
mpdata,kxx,2,1,0.03,0.03,0.03

rect,0,0.1,0,0.1
asel,s,area,,1
aatt,1
esize,0.004
mshkey,1
mshape,0
amesh,1
extopt,esize,5
extopt,aclear,1
extopt,attr,1,1,1
mat,1
vext,1,,,,,-0.02

rect,0.03,0.07,0.03,0.07
asel,s,area,,7
aatt,2
esize,0.004
mshkey,1
mshape,0
amesh,7
mat,2
vext,7,,,,,0.02
allsel
finish
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王权富贵贵

新虫 (初入文坛)

上头发重了,
/solu
outpr,nsol,all
outres,nsol,all
kbc,1
antype,trans
timint,off
nsubst,100,500,10
d,all,temp,20
solve
2楼2018-09-11 11:02:07
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