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lebendig

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[求助] ansys熱應(yīng)力瞬態(tài)分析不收斂已有1人參與

我做的是一個管道，其內(nèi)充滿水，管道外部某一段的溫度會隨時間變化的模型，但是計算總是不收斂
有沒有哪位大神可以幫我看一看是什么原因呀，謝謝啦
以下是我的log文件
/PREP7
!*
ET,1,PLANE223,11
!*
KEYOPT,1,1,11
KEYOPT,1,2,1
KEYOPT,1,3,1
KEYOPT,1,4,0
KEYOPT,1,9,0
KEYOPT,1,10,0
!*
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,EX,1,,1.93e11
MPDATA,PRXY,1,,0.247
MPTEMP,,,,,,,,
MPTEMP,1,0
UIMP,1,REFT,,,20
MPDATA,ALPX,1,,1.72e-5
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,KXX,1,,16.3
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,C,1,,500
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,DENS,1,,7930
MPTEMP,,,,,,,,
MPTEMP,1,-120
MPTEMP,2,-1
MPTEMP,3,0
MPTEMP,4,5
MPTEMP,5,50
MPDATA,EX,2,,1.076e10
MPDATA,EX,2,,1.076e10
MPDATA,EX,2,,1e6
MPDATA,EX,2,,1e6
MPDATA,EX,2,,1e6
MPDATA,PRXY,2,,0.33
MPDATA,PRXY,2,,0.33
MPDATA,PRXY,2,,0.33
MPDATA,PRXY,2,,0.33
MPDATA,PRXY,2,,0.33
MPTEMP,,,,,,,,
MPTEMP,1,-120
MPTEMP,2,-1
MPTEMP,3,0
MPTEMP,4,5
MPTEMP,5,50
UIMP,2,REFT,,,
MPDATA,ALPX,2,,4-5
MPDATA,ALPX,2,,9.2e-5
MPDATA,ALPX,2,,2.23e-5
MPDATA,ALPX,2,,5.67e-6
MPDATA,ALPX,2,,1e-4
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,KXX,2,,0.61
MPTEMP,,,,,,,,
MPTEMP,1,-120
MPTEMP,2,-1
MPTEMP,3,0
MPTEMP,4,50
MPDATA,DENS,2,,900
MPDATA,DENS,2,,900
MPDATA,DENS,2,,1000
MPDATA,DENS,2,,1000
MPTEMP,,,,,,,,
MPTEMP,1,-120
MPTEMP,2,-1
MPTEMP,3,0
MPTEMP,4,50
MPDATA,ENTH,2,,0
MPDATA,ENTH,2,,5.00e8
MPDATA,ENTH,2,,5.42e8
MPDATA,ENTH,2,,7.52e8
BLC4,0,0,0.0675,0.008
BLC4,0.0675,0,1.2,0.008
BLC4,0,0.008,1.2675,0.076
FLST,2,3,5,ORDE,2
FITEM,2,1
FITEM,2,-3
AGLUE,P51X
FLST,5,3,4,ORDE,3
FITEM,5,2
FITEM,5,4
FITEM,5,6
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
FLST,5,2,5,ORDE,2
FITEM,5,1
FITEM,5,4
CM,_Y,AREA
ASEL, , , ,P51X
CM,_Y1,AREA
CMSEL,S,_Y
!*
CMSEL,S,_Y1
AATT,    1, , 1,    0,
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
CM,_Y,AREA
ASEL, , , ,    5
CM,_Y1,AREA
CMSEL,S,_Y
!*
CMSEL,S,_Y1
AATT,    2, , 1,    0,
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
FLST,5,3,4,ORDE,3
FITEM,5,2
FITEM,5,4
FITEM,5,6
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,0.002, , , , , , ,1
!*
FLST,5,7,4,ORDE,5
FITEM,5,1
FITEM,5,3
FITEM,5,11
FITEM,5,13
FITEM,5,-16
CM,_Y,LINE
LSEL, , , ,P51X
CM,_Y1,LINE
CMSEL,,_Y
!*
LESIZE,_Y1,0.004, , , , , , ,1
!*
MSHAPE,0,2D
MSHKEY,1
!*
!*
AMAP,5,12,4,11,7
!*
!*
AMAP,1,4,3,2,1
!*
!*
AMAP,4,3,2,6,7
!*
FINISH
/SOL
!*
ANTYPE,4
!*
TRNOPT,FULL
LUMPM,0
!*
FLST,2,1,4,ORDE,1
FITEM,2,11
!*
/GO
DL,P51X, ,UY,0
FLST,2,2,4,ORDE,2
FITEM,2,4
FITEM,2,15
!*
/GO
DL,P51X, ,UX,0
TREF,20,
FLST,2,1,4,ORDE,1
FITEM,2,1
!*
/GO
DL,P51X, ,TEMP,26,0
NSUBST,0.1,0.01,0.01
OUTRES,ERASE
OUTRES,ALL,ALL
LNSRCH,1
TIME,0.01
FINISH
/POST1
FINISH
/SOL
LSWRITE,1,
FLST,2,1,4,ORDE,1
FITEM,2,1
!*
/GO
DL,P51X, ,TEMP,8,0
NSUBST,100,200,50
TIME,600
FINISH
/POST1
FINISH
/SOL
LSWRITE,2,
FLST,2,1,4,ORDE,1
FITEM,2,1
!*
/GO
DL,P51X, ,TEMP,-10,0
TIME,1500
LSWRITE,3,
FLST,2,1,4,ORDE,1
FITEM,2,1
!*
/GO
DL,P51X, ,TEMP,-35,0
TIME,5400
LSWRITE,4,
FLST,2,1,4,ORDE,1
FITEM,2,1
!*
/GO
DL,P51X, ,TEMP,-41,0
TIME,6000
LSWRITE,5,
FLST,2,1,4,ORDE,1
FITEM,2,1
!*
/GO
DL,P51X, ,TEMP,-60,0
TIME,8100
LSWRITE,6,
FLST,2,1,4,ORDE,1
FITEM,2,1
!*
/GO
DL,P51X, ,TEMP,-75,0
TIME,9600
LSWRITE,7,
FLST,2,1,4,ORDE,1
FITEM,2,1
!*
/GO
DL,P51X, ,TEMP,-100,0
TIME,12000
LSWRITE,8,
FLST,2,1,4,ORDE,1
FITEM,2,1
!*
/GO
DL,P51X, ,TEMP,-110,0
TIME,13200
LSWRITE,9,
FLST,2,1,4,ORDE,1
FITEM,2,1
!*
/GO
DL,P51X, ,TEMP,-114,0
TIME,13800
LSWRITE,10,

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1樓 2019-11-28 10:41:17

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shgao20

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【答案】應(yīng)助回帖

感謝參與，應(yīng)助指數(shù) +1

初步看了一下你的命令流，先說一個問題：  NSUBST 設(shè)置不對，如：
NSUBST,0.1,0.01,0.01
  其中的數(shù)值應(yīng)該是計算的子步數(shù)，必須是正整數(shù)。具體請見幫助文件中的有關(guān)內(nèi)容。
  對于不收斂的情況，首先可以考慮增加子步數(shù)，比如改為：
NSUBST,10,10000,2
  或者設(shè)置的更多一些。
  如果仍解決不了，且愿意支付少量費用的話，可以通過郵件和我聯(lián)系：  htbbzzg@163.com

贊一下

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2樓2019-11-29 08:43:13

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