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隱月sea新蟲 (初入文壇)
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[求助]
ANSYS 循環(huán)移動熱載荷 結(jié)果不收斂 求助
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我做的是在 絲桿上的循環(huán)移動熱載荷 不知道哪里錯了 結(jié)果不收斂 速度8000mm/min r移動塊250mm 熱流密度6500W/m2 兩端有軸承發(fā)熱 37W/m2 移動距離是1.6m 求高人指點啊 其余部分的對流載荷 7W/M2,K 來回循環(huán)12次 下面是我做的命令流 FINISH /CLEAR /FILENAME,sea /TITLE,thermal-structure annalysis *SET,a,0 *SET,j,0 *SET,tim,0 /PREP7 !進(jìn)入前處理 ET,1,SOLID90 R,1,1 MP,KXX,1,48 !定義材料導(dǎo)熱系數(shù) Mp,dens,7900 Mp,c,1,460 BLC5,0,0,0.027,0.027,-0.02 cyl4,0,0,0.045/2,360,,,0.225 wpoff,0,0,0.225 cyl4,0,0,0.063/2,360,,,2.251 wpoff,0,0, 2.251 cyl4,0,0,0.025,360,,,0.215 /REPLOT Wprota,,90 vsbw,all Wprota,,,90 vsbw,all nummrg,all numcmp,all csys,0 !劃分網(wǎng)格 MSHAPE,0,3D MSHKEY,1 Lsel,s,loc,z,0 Lsel,a,loc,z,-0.02 Lsel,a,loc,z,0.225 Lsel,a,loc,z,0.225+2.251 Lsel,a,loc,z,0.225+2.251+0.215 lesize,all,0.005 lsel,inve lesize,all,0.02 Vsweep,all /REPLOT SAVE FINISH /SOLU ANTYPE,4 TRNOPT,full /PSF,PRES,NORM,2,0,1 !設(shè)置面載荷用箭頭表示 !求解控制 nropt,auto,, Eqslv, Solcontrol,on Autots,on Kbc,1 Outres,all,all, Time,0.001 deltim,0.001,0.001,0.001 TIMINT,off Tunif,20 Csys,0 Nsel,s,loc,z, -0.02 SF,ALL,CONV,7,20 Nsel,s,loc,z, 0.225+2.251+0.215+0.005 SF,ALL,CONV,7,20 NSEL,S,LOC,x,-0.027/2,0.027/2 !施加對流載荷 NSEL,R,LOC,y,0.027/2 NSEL,R,LOC,z, -0.02,0 SF,ALL,CONV,7,20 NSEL,S,LOC,x,- 0.027/2, 0.027/2 NSEL,R,LOC,y,- 0.027/2 NSEL,R,LOC,z, -0.02,0 SF,ALL,CONV,7,20 NSEL,S,LOC,y,- 0.027/2, 0.027/2 NSEL,R,LOC,x, 0.027/2 NSEL,R,LOC,z, -0.02,0 SF,ALL,CONV,7,20 NSEL,S,LOC,y,- 0.027/2, 0.027/2 NSEL,R,LOC,x,- 0.027/2 NSEL,R,LOC,z, -0.02,0 SF,ALL,CONV,7,20 Csys,1 NSEL,S,LOC,x,0.045/2 NSEL,R,LOC,z,0,0.225-0.15 SF,ALL,CONV,7,20 NSEL,S,LOC,x,0.025 NSEL,R,LOC,z, 0.225+2.251+0.15, 0.225+2.251+0.215 SF,ALL,CONV,7,20 NSEL,S,LOC,x,0.063/2 NSEL,R,LOC,z, 0.225,0.225+2.251 SF,ALL,CONV,7,20 allsel,all Solve Timint,on !施加移動載荷 *DO,i,0,12*12,1 ! tim=0 time,tim Outres,all,all, tim=tim+1 TIME,tim Sfdele,all,hflux Csys,1 NSEL,S,LOC,x,0.045/2 !施加熱流密度載荷 NSEL,R,LOC,z,0.225-0.15,0.225 SF,ALL,HFLUX,37 NSEL,S,LOC,x,0.025 NSEL,R,LOC,z,0.225+2.251,0.225+2.251+0.15 SF,ALL,HFLUX,37 NSEL,S,LOC,x,0.063/2 !施加螺母產(chǎn)生的熱流密度 NSEL,R,LOC, z,0.435+j*0.134,0.685+ j*0.134 SF,ALL,HFLUX,7540 ALLS NSUBST,5 EQSLV,JCG !選擇求解器 SOLVE NSEL,S,LOC,x,0.063/2 !刪除上面添加的載荷 NSEL,R,LOC, z,0.435+ j*0.134,0.685+ j*0.134 SFDELE,ALL,HFLUX,7540 NSEL,S,LOC,x,0.063/2 !施加這部分的對流熱載荷 NSEL,R,LOC, z,0.435+ j*0.134,0.685+j*0.134 SF,ALL,conv,7,20 alls *IF, 0.435+j*0.134,GE,0.435+1.55,THEN !判斷是否轉(zhuǎn)向 j=12 a=1 *ELSEIF, 0.435+j*0.134,Lt,0.435+0.134,THEN j=0 a=0 *ENDIF *IF,a,EQ,0,THEN !判斷移動方向 j=j+1 *ELSE j=j-1 *ENDIF *ENDDO SAVE FINISH |
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2樓2017-05-06 11:30:49
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