2.822575e-9
solution not converged at time 1.0583333e-04(load step 1 substep 1),run termimated
求教版主一个瞬态热分析不收敛的问题
模型如下:三明治结构;BLOCK1相当于为移动热源,Block2、Block3为焊料层和结构件,它们之间存在接触热阻为2e4。单位制采用的是国际单位制,当体热源加到1e12 J/m^3时,出现不收敛的问题
“solution not converged at time 1.0583333e-04(load step 1 substep 1),run termimated”
请问怎么解决这个问题啊?
附上命令流:
/FILNAME,EX5-4,1 ! set filename
/TITLE,The Thermal Analysis of the Welding ! set title
/PREP7 !
!******************************
!
!******************************
*SET,LENGTH1,12.7e-3 !
*SET,LENGTH2,12.7e-3
*SET,LENGTH3,25.4e-3
*SET,WIDTH,6.35e-3
*SET,HEIGHT1,35e-6
*SET,HEIGHT2,25e-6
*SET,HEIGHT3,5e-4
*SET,STEP,12.7e-4
*SET,COUNT,LENGTH1/STEP ! count=20
*SET,V,6 !stept=1e-4
!******************************
!
!******************************
ET,1,SOLID70
!******************************
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,KXX,1,,160
!定义比热容1
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,C,1,,830
!定义密度
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,1,,5550
!!************************************************************* ! PbSn conductivity of PbSn
mptemp
mptemp,1, 290, 300, 310, 320, 330, 340
mptemp,7, 350, 360, 370, 380
mpdata,kxx,2,1, 69, 70.71, 72.39, 74.05, 75.69, 77.32
mpdata,kxx,2,7, 78.93, 80.51, 82.09, 83.64
!!*********************** !density of PbSn
!!mptemp, 1, 293, 300, 310, 320, 340, 350
!!mptemp, 7, 360, 370, 380, 390, 400, 410
!!mptemp, 13, 420, 430, 440, 450, 460, 470
!!mptemp, 19, 480, 490, 500
!!mpdata,dens,2, 1, 1.47e4, 1.4692e4, 1.4689e4, 1.4682e4, 1.4676e4, 1.4662e4
!!mpdata,dens,2, 7, 1.4654e4, 1.4647e4, 1.4639e4, 1.4632e4, 1.4624e4, 1.4615e4
!!mpdata,dens,2, 13, 1.4607e4, 1.4598e4, 1.4590e4, 1.4583e4, 1.4576e4, 1.4565e4
!!mpdata,dens,2, 19, 1.4554e4, 1.4545e4, 1.4534e4
!!************************************************* !material 2-specific heat of PbSn
mptemp
mptemp, 1, 298, 300, 350, 400, 450, 500
mpdata,c,2, 1, 1.47e2, 1.47e2, 1.51e2, 1.53e2, 1.55e2, 1.57e2
!!************************************************* ! material 3-heat conductivity of Si
MPTEMP,,,,,,,, !
MPTEMP,1,293 !
MPTEMP,2,373
MPTEMP,3,423
MPTEMP,4,473
MPTEMP,5,523
MPTEMP,6,573
MPTEMP,7,623
MPTEMP,8,673
MPTEMP,9,773
MPTEMP,10,873
MPTEMP,11,973
MPTEMP,12,1073
MPTEMP,13,1173
MPTEMP,14,1273
MPDATA,KXX,3,,929 !
MPDATA,KXX,3,,929
MPDATA,KXX,3,,422
MPDATA,KXX,3,,264
MPDATA,KXX,3,,191
MPDATA,KXX,3,,148
MPDATA,KXX,3,,119
MPDATA,KXX,3,,98.9
MPDATA,KXX,3,,76.2
MPDATA,KXX,3,,61.9
MPDATA,KXX,3,,50.8
MPDATA,KXX,3,,42.2
MPDATA,KXX,3,,35.9
MPDATA,KXX,3,,31.2
!!*************************************************
MPTEMP,,,,,,,, !
MPTEMP,1,293 !
MPTEMP,2,303
MPTEMP,3,313
MPTEMP,4,323
MPTEMP,5,333
MPTEMP,6,343
MPTEMP,7,353
MPTEMP,8,363
MPTEMP,9,373
MPTEMP,10,398
MPTEMP,11,423
MPTEMP,12,448
MPTEMP,13,473
MPTEMP,14,498
MPTEMP,15,523
MPTEMP,16,546
MPTEMP,17,571
MPTEMP,18,623
MPTEMP,19,673
MPTEMP,20,773
MPTEMP,21,873
MPTEMP,22,973
MPTEMP,23,1073
MPTEMP,24,1173
MPTEMP,25,1273
MPDATA,C,3,,3.37
MPDATA,C,3,,17.1
MPDATA,C,3,,44
MPDATA,C,3,,78.5
MPDATA,C,3,,115
MPDATA,C,3,,151
MPDATA,C,3,,188
MPDATA,C,3,,224
MPDATA,C,3,,260
MPDATA,C,3,,346
MPDATA,C,3,,425
MPDATA,C,3,,496
MPDATA,C,3,,557
MPDATA,C,3,,607
MPDATA,C,3,,649
MPDATA,C,3,,681
MPDATA,C,3,,712
MPDATA,C,3,,759
MPDATA,C,3,,793
MPDATA,C,3,,840
MPDATA,C,3,,869
MPDATA,C,3,,892
MPDATA,C,3,,912
MPDATA,C,3,,930
MPDATA,C,3,,946
!!*************************************************
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,3,,2330
!******************************
!
!******************************
WPSTYLE,,,,,,,,0 !
BLOCK,0,LENGTH1,0,WIDTH,0,HEIGHT1, !
BLOCK,0,LENGTH2,0,WIDTH,0,-HEIGHT2, !
BLOCK,0,LENGTH3,0,WIDTH,-HEIGHT2,-HEIGHT3-HEIGHT2, !
/VIEW,1,1,1,1
/ANG,1
/REP,FAST
/VIEW,1,,-1
/ANG,1
/REP,FAST
/DIST,1,0.729,1
/REP,FAST
/DIST,1,0.729,1
/REP,FAST
/FOC,1,-0.3,,,1
/REP,FAST
/FOC,1,-0.3,,,1
/REP,FAST
/FOC,1,-0.3,,,1
/REP,FAST
/DIST,1,0.729,1
/REP,FAST
/DIST,1,0.729,1
/REP,FAST
/DIST,1,0.729,1
/REP,FAST
/DIST,1,0.729,1
/REP,FAST
/FOC,1,-0.3,,,1
/REP,FAST
/FOC,1,-0.3,,,1
/REP,FAST
/DIST,1,0.729,1
/REP,FAST
/DIST,1,0.729,1
/REP,FAST
FLST,5,1,4,ORDE,1
FITEM,5,1
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
FLST,5,3,4,ORDE,3
FITEM,5,1
FITEM,5,13
FITEM,5,25
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,1.27e-4, , , , , , ,1
!*
FLST,5,3,4,ORDE,3
FITEM,5,4
FITEM,5,16
FITEM,5,28
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,1.27e-4, , , , , , ,1
!*
!*
FLST,5,3,4,ORDE,1
FITEM,5,33
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,1e-4, , , , , , ,1
!*
!*
FLST,5,3,4,ORDE,2
FITEM,5,9
FITEM,5,21
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,5e-6, , , , , , ,1
CM,_Y,VOLU
VSEL, , , , 1
CM,_Y1,VOLU
CMSEL,S,_Y
!*
CMSEL,S,_Y1
VATT, 1, , 1, 0
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
CM,_Y,VOLU
VSEL, , , , 1
CM,_Y1,VOLU
CHKMSH,'VOLU'
CMSEL,S,_Y
!*
MSHAPE,0,3d
MSHKEY,1
VMESH,_Y1
MSHKEY,0
!*
CMDELE,_Y
CMDELE,_Y1
CMDELE,_Y2
!*
CM,_Y,VOLU
VSEL, , , , 2
CM,_Y1,VOLU
CMSEL,S,_Y
!*
CMSEL,S,_Y1
VATT, 2, , 1, 0
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
CM,_Y,VOLU
VSEL, , , , 2
CM,_Y1,VOLU
CHKMSH,'VOLU'
CMSEL,S,_Y
!*
MSHAPE,0,3d
MSHKEY,1
VMESH,_Y1
MSHKEY,0
!*
CMDELE,_Y
CMDELE,_Y1
CMDELE,_Y2
!*
CM,_Y,VOLU
VSEL, , , , 3
CM,_Y1,VOLU
CMSEL,S,_Y
!*
CMSEL,S,_Y1
VATT, 3, , 1, 0
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
CM,_Y,VOLU
VSEL, , , , 3
CM,_Y1,VOLU
CHKMSH,'VOLU'
CMSEL,S,_Y
!*
MSHAPE,0,3d
MSHKEY,1
VMESH,_Y1
MSHKEY,0
!*
CMDELE,_Y
CMDELE,_Y1
CMDELE,_Y2
!*
/REPLOT,RESIZE
!*
!*
/COM, CONTACT PAIR CREATION - START
CM,_NODECM,NODE
CM,_ELEMCM,ELEM
CM,_KPCM,KP
CM,_LINECM,LINE
CM,_AREACM,AREA
CM,_VOLUCM,VOLU
/GSAV,cwz,gsav,,temp
MP,MU,1,
MAT,1
R,3
REAL,3
ET,2,170
ET,3,174
KEYOPT,3,9,0
KEYOPT,3,10,2
R,3,
RMORE,
RMORE,,2e4
RMORE,0
KEYOPT,3,1,2
! Generate the target surface
ASEL,S,,,1
CM,_TARGET,AREA
TYPE,2
NSLA,S,1
ESLN,S,0
ESLL,U
ESEL,U,ENAME,,188,189
ESURF
CMSEL,S,_ELEMCM
! Generate the contact surface
ASEL,S,,,8
CM,_CONTACT,AREA
TYPE,3
NSLA,S,1
ESLN,S,0
ESURF
ALLSEL
ESEL,ALL
ESEL,S,TYPE,,2
ESEL,A,TYPE,,3
ESEL,R,REAL,,3
/PSYMB,ESYS,1
/PNUM,TYPE,1
/NUM,1
EPLOT
ESEL,ALL
ESEL,S,TYPE,,2
ESEL,A,TYPE,,3
ESEL,R,REAL,,3
CMSEL,A,_NODECM
CMDEL,_NODECM
CMSEL,A,_ELEMCM
CMDEL,_ELEMCM
CMSEL,S,_KPCM
CMDEL,_KPCM
CMSEL,S,_LINECM
CMDEL,_LINECM
CMSEL,S,_AREACM
CMDEL,_AREACM
CMSEL,S,_VOLUCM
CMDEL,_VOLUCM
/GRES,cwz,gsav
CMDEL,_TARGET
CMDEL,_CONTACT
/COM, CONTACT PAIR CREATION - END
!*
!*
/COM, CONTACT PAIR CREATION - START
CM,_NODECM,NODE
CM,_ELEMCM,ELEM
CM,_KPCM,KP
CM,_LINECM,LINE
CM,_AREACM,AREA
CM,_VOLUCM,VOLU
/GSAV,cwz,gsav,,temp
MP,MU,1,0
MAT,1
R,4
REAL,4
ET,4,170
ET,5,175
KEYOPT,5,9,0
KEYOPT,5,10,2
R,4,
RMORE,
RMORE,,2e4
RMORE,0
KEYOPT,5,1,2
! Generate the target surface
ASEL,S,,,7
CM,_TARGET,AREA
TYPE,4
NSLA,S,1
ESLN,S,0
ESLL,U
ESEL,U,ENAME,,188,189
ESURF
CMSEL,S,_ELEMCM
! Generate the contact surface
NSEL,S,LOC,X,0,12.7e-3
NSEL,R,LOC,Y,0,6.35e-3
NSEL,R,LOC,Z,-25e-6
CM,_CONTACT,NODE
TYPE,5
ESLN,S,0
ESURF
ALLSEL
ESEL,ALL
ESEL,S,TYPE,,4
ESEL,A,TYPE,,5
ESEL,R,REAL,,4
/PSYMB,ESYS,1
/PNUM,TYPE,1
/NUM,1
EPLOT
ESEL,ALL
ESEL,S,TYPE,,4
ESEL,A,TYPE,,5
ESEL,R,REAL,,4
CMSEL,A,_NODECM
CMDEL,_NODECM
CMSEL,A,_ELEMCM
CMDEL,_ELEMCM
CMSEL,S,_KPCM
CMDEL,_KPCM
CMSEL,S,_LINECM
CMDEL,_LINECM
CMSEL,S,_AREACM
CMDEL,_AREACM
CMSEL,S,_VOLUCM
CMDEL,_VOLUCM
/GRES,cwz,gsav
CMDEL,_TARGET
CMDEL,_CONTACT
/COM, CONTACT PAIR CREATION - END
ALLSEL,ALL
/MREP,EPLOT
FINISH !
!******************************
!
!******************************
!
*DO,I,0,COUNT !
*SET,DISY,I*STEP !
*SET,T,(DISY+STEP)/V !
/SOLU
!
ANTYPE,4 !
TRNOPT,FULL ! set full transient analysis
TUNIF,293, !
OUTRES,BASIC,LAST ! output last-substep basic result
TIME,T !
NROPT,FULL,,ON ! set N-R option
DELTIM,2E-6,1E-6,2E-6,1 ! open auto time step
NSUBST,10,,,1 ! set substep=10
KBC,1 !
LNSRCH,1 ! open linear search
TSRES,ERASE ! clear time-step option
TINTP,,,,1,,,,,
TIMINT,1,THERM ! set time intergetion
LNSRCH,AUTO
SOLCONTROL,ON
!*******************************
!
!*******************************
NSEL,S,EXT !
NSEL,U,LOC,Z,35E-6 !
SF,ALL,CONV,35,293 !
ALLSEL,ALL !
!*******************************
!*******************************
LOCAL,11,0,DISY,0,0, !
NSEL,S,LOC,X,0,12.7e-4 !
NSEL,R,LOC,Y,0,WIDTH !
NSEL,R,LOC,Z,0,HEIGHT1 ! !
BF,ALL,HGEN,1.468886598e12 !
CMDELE,NODEF !
ALLSEL,ALL !
SOLVE !
BFDELE,ALL,HGEN !
*ENDDO !
SAVE !
!***************************
!
!***************************
CSYS,0
NSEL,S,EXT
NSEL,U,LOC,Z,35E-6
SF,ALL,CONV,35,293
ALLSEL,ALL
TIME,LENGTH1/V+0.2 !
NSUBST,10,,,1
DELTIM,1E-2,5E-3,1E-2,1 !
SOLVE
CSYS,0
ALLSEL,ALL
SAVE !
FINISH
/POST26
nsol,9,node(6e-3,0,-125e-6),temp,,
nsol,2,1775,temp,, !
nsol,3,1278,temp,, !
nsol,4,1279,temp,, !
nsol,5,1374,temp,, !
nsol,6,1375,temp,, !
nsol,7,2204,temp,,
nsol,8,2022,temp,, !
plvar,2,3,4,5,6,7,8,9 ! |