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專業(yè): 機(jī)械結(jié)構(gòu)強(qiáng)度學(xué)

[求助] ansys熱分析高斯熱源模型熱流密度施加不上去溫度場(chǎng)不發(fā)生變化

我用ansys做的熱分析，是對(duì)一個(gè)鋼板進(jìn)行的熱流密度施加，但是熱流密度好像施加不上去，命令流能運(yùn)行，但是用后處理器查看溫度場(chǎng)沒(méi)有變化，用時(shí)間歷程處理器查看加熱區(qū)某一節(jié)點(diǎn)的溫度場(chǎng)也沒(méi)有發(fā)生變化，不知道為什么，希望哪位高手能指點(diǎn)一下，具體命令流如下：
【我是剛注冊(cè)的號(hào)，金幣不多，望請(qǐng)見(jiàn)諒！】

我也附加傳了一份txt文本附件

finish
/clear
/filname,Fname
/title,FEM model of heating
/unit,SI

!**********************modeling******************************
/prep7
et,1,solid70    !3D熱實(shí)體
et,2,solid87    !三維10節(jié)點(diǎn)4面體熱單元
et,3,surf152    !接觸單元
keyopt,3,4,1
keyopt,3,8,1

!******************材料常數(shù)***********************************
MPTEMP,1,0,20,75,100,175,200
MPTEMP,7,225,300,325,375,400,450
MPTEMP,13,475,500,550,575,600,675
MPTEMP,19,700,720,725,775,800,900
MPTEMP,25,1000,1100,1200,1500

MPDATA,KXX,1,1,51.9,51.74,51.3,51.1,49.525,49
MPDATA,KXX,1,7,48.275,46.1,45.25,43.55,42.7,41.05
MPDATA,KXX,1,13,40.225,39.4,37.5,36.55,35.6,32.75
MPDATA,KXX,1,19,31.8,30.64,30.35,27.45,26,26.6
MPDATA,KXX,1,25,27.2,27.7,28.2,29.7

MPDATA,C,1,1,450,459.6,486,494.25,519,525.5
MPDATA,C,1,7,532,563.5,574,599,614.75,646.25
MPDATA,C,1,13,662,683.75,727.25,749,773.25,846
MPDATA,C,1,19,1139,1373.4,1432,950,931.03,855.17
MPDATA,C,1,25,779.31,703.45,627.59,400

MPDATA,DENS,1,1,7880,7880,7880,7880,7880,7800
MPDATA,DENS,1,7,7800,7800,7790,7790,7780,7750
MPDATA,DENS,1,13,7720,7710,7710,7710,7700,7700
MPDATA,DENS,1,19,7650,7650,7600,7600,7588,7500
MPDATA,DENS,1,25,7400,7320,7200,7258

MPDATA,EX,1,1,2.08e11,2.06e11,2.02e11,2.0e11,1.99e11,1.98e11
MPDATA,EX,1,7,1.92e11,1.9e11,1.87e11,1.86e11,1.85e11,1.8e11
MPDATA,EX,1,13,1.77e11,1.75e11,1.7e11,1.63e11,1.65e11,1.3e11
MPDATA,EX,1,19,1.2e11,1.38e11,1.35e11,0.9e11,0.8e11,0.6e11
MPDATA,EX,1,25,0.4e11,0.25e11,0.25e11,0.25e11

MPDATA,PRXY,1,1,0.29,0.29,0.3,0.31,0.325,0.33
MPDATA,PRXY,1,7,0.335,0.35,0.355,0.36,0.367,0.37
MPDATA,PRXY,1,13,0.38,0.39,0.395,0.4,0.405,0.42
MPDATA,PRXY,1,19,0.425,0.43,0.43,0.435,0.44,0.445
MPDATA,PRXY,1,25,0.45,0.475,0.475,0.475

MPDATA,ALPX,1,1,10e-6,10e-6,10e-6,11e-6,11e-6,11e-6
MPDATA,ALPX,1,7,11e-6,12e-6,12e-6,12e-6,12e-6,13e-6
MPDATA,ALPX,1,13e-6,13e-6,13e-6,14e-6,14e-6,14e-6,14e-6
MPDATA,ALPX,1,19,14e-6,14e-6,14e-6,14e-6,14e-6,14e-6
MPDATA,ALPX,1,25,14e-6,14e-6,15e-6,15e-6

block,0,500,0,400,0,-14    !plate
block,0,40,0,250,0,-14 !flame region 1
block,0,90,0,280,0,-14 !transition region 5
block,0,90,0,400,0,-14 !up left region 2
block,90,500,0,280,0,-14 !upper right rigion 3
boptn,keep,no    !布爾設(shè)置
vovl,all          !體分開(kāi)
numcmp,kp          !壓縮代號(hào)
numcmp,line
numcmp,area
numcmp,volu

!*********************meshing************************
!meshing the flame rigion
type,1
lsel,s,line,,21,22,1
lsel,a,line,,5,8,3
lesize,all,8,,,1
lsel,s,line,,6,7,1
lsel,a,line,,23,24,2
lesize,all,8,,,1
lsel,s,line,,1,11,10
lesize,all,,,3,2
lsel,a,line,,9,10,1
lesize,all,,,3,0.5
lsel,all
vsel,s,volu,,1
vmesh,all
vsel,all

!meshing the linear rigion
type,1
lsel,s,line,,25,26,1
lsel,a,line,,39,40,1
lesize,all,30,,,1
lsel,a,line,,29,30,1
lesize,all,30,,,1
lsel,s,line,,13,14,1
lsel,a,line,,33,34,1
lesize,all,30,,,1
lsel,s,line,,12,15,3
lsel,a,line,,27,28,1
lesize,all,40,,,1
lsel,s,line,,31,32,1
lsel,a,line,,37,38,1
lesize,all,40,,,1
lsel,s,line,,35,36,1
lesize,all,40,,,1
lsel,all
vsel,s,volu,,2,4,1
vmesh,all
vsel,all

!meshing the transition region    !過(guò)渡網(wǎng)格劃分
type,2
lsel,s,line,,43,44,1
lesize,all,,,2,1
lsel,s,line,,41,42,1
lesize,all,,,3,1
mopt,expnd,1.5
mopt,tetexpnd,2
mopt,trans,1.5
lsel,all
vsel,s,volu,,5
vmesh,all
vsel,all
!表面有效單元的劃分
type,3
asel,s,area,,8
amesh,all
asel,all
numcmp,node
numcmp,elem

save
finish

!****************施加熱流 heating flux  *********************

finish
/clear
resume,Fname,db
/filname,Fname1
/title,termperature filed of heating

*set,vatl,817.3                            !flow rate of acetylene(l/h)
*set,ata,0.29                               !heat transfer efficiency
*set,v,4                                  !flame moving speed
*set,tmptint,23                            !initial temperature
*set,k,3/40/40                         !for heating source
*set,q0,k*ata*11470*4.184*vatl/3600/3.1416
*set,timestep,8/v                            !time step length(time stayed on each element)
*set,tend,210/v                         !the end time of heating

!************************** define components ******************
!define the node component of flame region.
asel,s,area,,8                         !upper flame area.
nsla,s,1                               !all nodes.
cm,flmrg,node                         !flame region component

!define the upper surface
asel,s,area,,12,17,5
asel,a,area,,22,26,4                   !upper surface except flame area.
nsla,s,1                               !all nodes
cm,upsfc,node
!define the whole upper surface
cmsel,s,flmrg
cmsel,a,upsfc
cm,whupsfc,node

!define the below surface
asel,s,area,,7,11,14
asel,a,area,,16,21,5
asel,a,area,,25                         !below surface.
nsla,s,1
cm,blsfc,node

!define the around surface
asel,s,area,,5,10,5
asel,a,area,,14,15,1
asel,a,area,,19,20,1
asel,a,area,,23                         !around surface.
nsla,s,1
cm,rdsfc,node

!define the 152 surface element component
esel,s,type,,3
cm,htflrg,elem                         !heat flux elements

!****************************  heating  ******************************
/solu
antype,TRANS

!solution setting
tunif,tmptint                         !uniform temperature for the fist load step
TREF,TMPTINT
nsubst,2,5,1                            !two substeps.
kbc,0                                  !ramped load.
outres,nsol,last                      !write node sesults at the last substep
outpr,all,none                         !none print out.
eqslv,sparse,le-5                      !pcg solver  精度設(shè)置

!**************************** ****************************
!load step loop during heating
*set,Tstart,0.01
*set,Tend,tend
*set,Tinc,timestep
*do,TM,Tstart,Tend,Tinc
   *set,xorg,0
   *set,yorg,v*(TM-Tstart)
   *set,zorg,0
   clocal,11,1,xorg,yorg,zorg
   *if,TM-Tstart,le,Tend,then       !flame heating
   csys,11
   !flame round
   *set,R0,40                         !the outside flame round radius
   *set,Rend,8                      !the inner flame round rsdius
   *set,Rinc,-8                   !flame round step.
   *do,r,R0,Rend,Rinc
   cmsel,s,flmrg                   !nodes in flame region surface.
   nsel,r,loc,x,0,r-0.05*8
   esln
   esel,r,type,,3
   *set,Rmid,r+Rinc/2
   sfe,all,,hflux,,q0*exp(-1*k*Rmid*Rmid)
   *enddo
   cmsel,s,flmrg
   nsel,r,loc,x,0,R0
   esln,s,1
   cm,flame,elem                   !current flame round
   cmsel,s,htflrg                   !surface 152 elelements
   cmsel,u,flame                   !non current flame region
   sfedel,all,,hflux                   !delete last flame load
*endif

!delete heat flux after the last flame heating step.
*if,TM-Tstrat,eq,Tend+timestep,then
   cmsel,s,flame
   sfedel,all,,hflux                !delete heat flux
*endif

   allsel
   time,TM
   csys,0
   solve
*enddo

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附件 1 : 熱流施加 1.txt

2012-05-11 16:06:23, 7.07 K

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