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- 1970-1-1
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我现在正在模拟磁热顺序耦合过程,先做了一个书上的例题,可能是书上写得简单,我在模拟过程中遇见了问题。
命令流如下:
/prep7
et,1,13,,,1
et,2,13,,,1
et,3,151,,,1,1,1 !选择磁场单元
r,3,0 !SURF151单元实常数
*SET,row,0.015 !钢盘直径
*SET,ric,0.0175 !线圈靠钢盘的内径
*SET,roc,0.0200 !线圈外径
*SET,ro,0.05 空气的最远距离
*SET,t,0.001 模型厚度
*SET,freq,150000 频率
*SET,pi,4*atan(1)
*SET,cond,0.392e7
*SET,muzero,4e-7*pi 真空磁导率
*SET,mur,200
*SET,skind,sqrt(1/(pi*freq*cond*muzero*mur)) 趋肤深度
*SET,ftime,3 结束时间
*SET,tinc,0.05 时间增量
*SET,time,0 开始时间
*SET,delt,0.01 最大时间步
emunit,mks
mp,murx,1,1 空气相对磁导率
mp,murx,3,1 线圈相对磁导率
mptemp,1,25.5,160,291.5,477.6,635,698 钢的相对磁导率与温度关系
mptemp,7,709,720.3,742,761,1000
mpdata, murx, 2,1,200,190,182,161,135,104
mpdata, murx, 2, 7,84,35,17,1,1
mptemp 钢的电阻率与温度关系
mptemp,1,0,125,250,375,500,625
mptemp,7,750,875,1000
mpdata,rsvx,2,1,0.184e-6,0.272e-6,0.384e-6,0.512e-6,0.656e-6,0.824e
-6
mpdata,rsvx,2,7,1.032e-6,1.152e-6,1.2e-6
rectng,0,row,0,t
rectng,row,ric,o,t
rectng,ric,roc,0,t
rectng,roc,ro,o,t
aglue,all !创建2D模型
numcmp,area !压缩面编号
asel,s,area,,1
aatt,2,1,1
asel,s,area,,3
aatt,3,1,2
asel,s,area,,2,4,2
aatt,1,1,2
asel,all !分别对钢、线圈和空气赋特性
mshape,0,2d
mshk,1
amesh,1
lsel,s,loc,y,0
lsel,a,loc,y,t
lsel,u,loc,x,row/2
lesize,all,0.001
lsel,all
amesh,all !网格划分
n !为SURF151单元建立空间节点
*get,nmax,node,,num,max
lsel,s,loc,x,row
type,3
real,3
mat,2
lmesh,all
*get,emax,elem,,num,max
emodif,emax,3,nmax !把单元修改成辐射用于辐射的空间节点
et,3,0 3号单元换成0号单元
nsel,s,loc,x
d,all,az,0
nsel,all
esel,s,mat,,3
bfe,all,js,,,,15e6
esel,all 施加的边界条件和载荷
antyp,harm
harfrq,150000 !定义谐波分析
physics,write,emag !写入emag物理文件
!下面转入热分析:
lsclear,all !清除所有边界条件和选项
et,1,55,,,1
et,2,0
et,3,151,,,1,1,1
keyopt,3,9,1
r,3,1,5.67e-8
mptemp
mptemp,1,0,730,930,1000
mpdata,kxx,2,1,60.64,29.5,28,28
mptemp !温度与焓的关系
mptemp,1,0,27,127,327,527,727
mptemp,7,765,765.001,927
mpdata,enth,2,1,0,91609056,453285756,1.2748e9,2.2519e9,3.3396e9
mpdata,enth,2,7,3.548547e9,3.548556e9,4.3520e9
mp,emis,2,0.68 !辐射率
antype,trans
toffst,273
tunif,100
d,nmax,temp,25
cnvtol,heat,1
kbc,1
trnopt,full
autots,on
deltim,1e-5,1e-6,delt,on
outres,basic,all
physics,write,thermal !写入thermal物理文件
做do循环
*do,i,1,ftime/tinc
*SET,time,time+tinc
physics,read,emag
/solu
*if,i,eq,1,then
tunif,100
*else
ldread,temp,last,,,,,rth !读入热分析的温度
*endif
solve
finish
physics,read,thermal
/assign,esav,therm,esav
/assign,emat,therm,emat
/solu
*if,i,gt,1,then
antyp,trans,rest
*endif
time,time
esel,s,mat,,2
ldread,hgen,,,,2,,rmg !读入emag分析中的焦耳热载荷
esel,all
solve
finish
/assign,esav
/assign,emat
*enddo
finish
save
/post26
/show
nsol,2,1,tem,,tempcl
nsol,3,2,tem,,tempself
plvar,2,3
prvar,2,3
finish
但是在加载过程中
*** WARNING ***
Specified DOF constraint AZ at unused node 193.
*** ERROR ***
Shape testing revealed that 1 of the 3 new or modified elements violate
shape error limits. To review test results, please see the output
file or issue the CHECK command.
*** ERROR *** CP = 32.837 TIME= 16:35:02
Element 142 has an undefined node number 0.
*** ERROR *** CP = 33.017 TIME= 16:35:09
Element 143 has an undefined node number 0.
*** ERROR *** CP = 33.198 TIME= 16:35:11
The model data was checked and there were errors found.
Please check output or errors file ( C:\Documents and
Settings\wenfang\file.err ) for messages.
*** ERROR *** CP = 33.388 TIME= 16:35:13
No results file ( file.rth ) available.
The LDREAD command is ignored.
*** WARNING *** CP = 33.648 TIME= 16:36:02
Specified DOF constraint AZ at unused node 193.
*** WARNING *** CP = 33.698 TIME= 16:36:02
Material property MURX of material 2 of element 1 is evaluated at a
temperature of 0, which is below the supplied temperature range.
Temperature range checking terminates.
*** ERROR *** CP = 33.949 TIME= 16:36:02
Shape testing revealed that 1 of the 3 new or modified elements violate
shape error limits. To review test results, please see the output
file or issue the CHECK command.
*** ERROR *** CP = 34.530 TIME= 16:36:09
File therm.esav not found. Previous solution (required for restarting)
cannot be recovered.
*** ERROR *** CP = 34.750 TIME= 16:36:13
Error in restart, RDB file does not exist.
The ANTYPE command is ignored.
*** WARNING *** CP = 34.970 TIME= 16:36:38
File file.rth ( needed for appending ) does not exist.
*** WARNING *** CP = 34.970 TIME= 16:36:38
File file.rth ( needed for appending ) does not exist.
*** ERROR *** CP = 34.970 TIME= 16:36:38
File therm.esav not found. Previous solution (required for restarting)
cannot be recovered.
*** ERROR *** CP = 35.181 TIME= 16:36:50
No results file ( file.rth ) available.
The LDREAD command is ignored.
*** WARNING *** CP = 35.361 TIME= 16:36:54
Specified DOF constraint AZ at unused node 193.
*** ERROR *** CP = 35.631 TIME= 16:36:55
Shape testing revealed that 1 of the 3 new or modified elements violate
shape error limits. To review test results, please see the output
file or issue the CHECK command.
*** ERROR *** CP = 36.202 TIME= 16:37:00
File therm.esav not found. Previous solution (required for restarting)
cannot be recovered.
*** ERROR *** CP = 36.462 TIME= 16:37:04
Error in restart, RDB file does not exist.
The ANTYPE command is ignored.
*** WARNING *** CP = 36.693 TIME= 16:37:39
File file.rth ( needed for appending ) does not exist.
*** WARNING *** CP = 36.693 TIME= 16:37:39
File file.rth ( needed for appending ) does not exist.
*** ERROR *** CP = 36.693 TIME= 16:37:39
File therm.esav not found. Previous solution (required for restarting)
cannot be recovered.
*** ERROR *** CP = 36.953 TIME= 16:37:55
No results file ( file.rth ) available.
The LDREAD command is ignored.
*** WARNING *** CP = 37.163 TIME= 16:37:59
Specified DOF constraint AZ at unused node 193.
*** ERROR *** CP = 37.474 TIME= 16:37:59
Shape testing revealed that 1 of the 3 new or modified elements violate
shape error limits. To review test results, please see the output
file or issue the CHECK command.
*** ERROR *** CP = 38.055 TIME= 16:38:01
File therm.esav not found. Previous solution (required for restarting)
cannot be recovered.
*** ERROR *** CP = 38.325 TIME= 16:38:05
Error in restart, RDB file does not exist.
The ANTYPE command is ignored.
*** WARNING *** CP = 38.505 TIME= 16:38:06
File file.rth ( needed for appending ) does not exist.
*** WARNING *** CP = 38.505 TIME= 16:38:06
File file.rth ( needed for appending ) does not exist.
*** ERROR *** CP = 38.505 TIME= 16:38:06
File therm.esav not found. Previous solution (required for restarting)
cannot be recovered.
请您帮我看看哪儿出了问题,谢谢! |
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