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[求助]
ansys命令流,这个热流载荷为什么加载不上
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有多步载荷，大概意思是load1加热，load2停热，load3加热，load4停热， 但其中load3是加载不上的，请大家帮忙看看，是怎么回事，谢谢！ /FILNAME,heatflux /PREP7 ! 进入前处理器 R=0.004 H=0.001 Q=2.9e14 t=0.000004 ET,1,PLANE55 !* KEYOPT,1,1,0 KEYOPT,1,3,1 KEYOPT,1,4,0 KEYOPT,1,8,0 KEYOPT,1,9,0 !* MPTEMP,1,300 MPTEMP,2,500 MPTEMP,3,1000 MPTEMP,4,1500 MPTEMP,5,2000 MPTEMP,6,2500 MPTEMP,7,3000 MPDATA,KXX,1,,171.5 MPDATA,KXX,1,,149.5 MPDATA,KXX,1,,119.5 MPDATA,KXX,1,,107.1 MPDATA,KXX,1,,98.8 MPDATA,KXX,1,,92.5 MPDATA,KXX,1,,87.8 MPDATA,DENS,1,,19350 MPDATA,DENS,1,,19350 MPDATA,DENS,1,,19350 MPDATA,DENS,1,,19350 MPDATA,DENS,1,,19350 MPDATA,DENS,1,,19350 MPDATA,DENS,1,,19350 MPDATA,C,1,,132.2 MPDATA,C,1,,138.9 MPDATA,C,1,,147.7 MPDATA,C,1,,158.8 MPDATA,C,1,,167.9 MPDATA,C,1,,176.5 MPDATA,C,1,,186.7 MPTEMP,1,300 MPTEMP,2,500 MPTEMP,3,1000 MPTEMP,4,1500 MPTEMP,5,2000 MPTEMP,6,2500 MPTEMP,7,3000 MPDATA,KXX,2,,80.4 MPDATA,KXX,2,,80.4 MPDATA,KXX,2,,80.4 MPDATA,KXX,2,,80.4 MPDATA,KXX,2,,80.4 MPDATA,KXX,2,,80.4 MPDATA,KXX,2,,80.4 MPDATA,DENS,2,,7860 MPDATA,DENS,2,,7860 MPDATA,DENS,2,,7860 MPDATA,DENS,2,,7860 MPDATA,DENS,2,,7860 MPDATA,DENS,2,,7860 MPDATA,DENS,2,,7860 MPDATA,C,2,,448 MPDATA,C,2,,448 MPDATA,C,2,,448 MPDATA,C,2,,448 MPDATA,C,2,,448 MPDATA,C,2,,448 MPDATA,C,2,,448 K,1,,,, K,2,0.008,,, K,3,0.008,0.004,, K,4,0.004,0.004,, K,5,0,0.004,, K,6,0,0.003,, K,7,0.004,0.003,, /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST /DIST,1,1.08222638492,1 /REP,FAST FLST,2,6,3 FITEM,2,1 FITEM,2,2 FITEM,2,3 FITEM,2,4 FITEM,2,7 FITEM,2,6 A,P51X FLST,2,4,3 FITEM,2,5 FITEM,2,4 FITEM,2,7 FITEM,2,6 A,P51X FLST,2,2,5,ORDE,2 FITEM,2,1 FITEM,2,-2 AGLUE,P51X CM,_Y,AREA ASEL, , , , 2 CM,_Y1,AREA CMSEL,S,_Y !* CMSEL,S,_Y1 AATT, 1, , 1, 0, CMSEL,S,_Y CMDELE,_Y CMDELE,_Y1 !* CM,_Y,AREA ASEL, , , , 1 CM,_Y1,AREA CMSEL,S,_Y !* CMSEL,S,_Y1 AATT, 2, , 1, 0, CMSEL,S,_Y CMDELE,_Y CMDELE,_Y1 !* ESIZE,r/40,0, MSHAPE,0,2D MSHKEY,0 !* FLST,5,2,5,ORDE,2 FITEM,5,1 FITEM,5,-2 CM,_Y,AREA ASEL, , , ,P51X CM,_Y1,AREA CHKMSH,'AREA' CMSEL,S,_Y !* AMESH,_Y1 !* CMDELE,_Y CMDELE,_Y1 CMDELE,_Y2 !* !-------------------------------- CM,_TARGET,LINE !* CM,_CONTACT,LINE !* /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,2,169 ET,3,172 KEYOPT,3,9,0 KEYOPT,3,10,2 R,3, RMORE, RMORE,,100 RMORE,0 KEYOPT,3,1,2 ! Generate the target surface LSEL,S,,,4 LSEL,A,,,5 LSEL,A,,,7 LSEL,A,,,8 CM,_TARGET,LINE TYPE,2 NSLL,S,1 ESLN,S,0 ESURF CMSEL,S,_ELEMCM ! Generate the contact surface LSEL,S,,,1 LSEL,A,,,2 LSEL,A,,,3 LSEL,A,,,4 LSEL,A,,,5 LSEL,A,,,6 CM,_CONTACT,LINE TYPE,3 NSLL,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 /MREP,EPLOT !----------------------------------------- nsel,s,loc,Z,0 nsel,s,loc,x,0,0.001 nsel,r,loc,y,0.003,0.004 BF,all,hgen,q nsel,s,loc,Z,0 nsel,s,loc,x,0,0.001 nsel,r,loc,y,0,0.003 BF,all,hgen,q /SOLU tunif,300 toffst,273 ANTYPE,TRANS TIME,t DELTIM,t/10 KBC,0 AUTOTS,ON OUTRES,ALL,ALL ALLSEL,ALL SAVE LSWRITE,1, TIME,1000*t DELTIM,10*t FLST,2,2,5,ORDE,2 FITEM,2,1 FITEM,2,-2 /GO !* BFA,P51X,HGEN,0 TSRES,ERASE ALLSEL,ALL SAVE LSWRITE,2, TIME,1000*t+t DELTIM,t/10 ALLSEL,ALL nsel,s,loc,Z,0 nsel,s,loc,x,0,0.001 nsel,r,loc,y,0.003,0.004 BF,all,hgen,q nsel,s,loc,Z,0 nsel,s,loc,x,0,0.001 nsel,r,loc,y,0,0.003 BF,all,hgen,q TSRES,ERASE ALLSEL,ALL SAVE LSWRITE,3, TIME,2000*t DELTIM,10*t FLST,2,2,5,ORDE,2 FITEM,2,1 FITEM,2,-2 /GO !* BFA,P51X,HGEN,0 TSRES,ERASE ALLSEL,ALL SAVE LSWRITE,4, [ Last edited by taofei on 2013-1-15 at 10:49 ] |
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3楼2013-01-18 10:22:27
【答案】应助回帖
★ ★ ★ ★ ★
感谢参与，应助指数 +1
taofei: 金币+5, ★★★★★最佳答案, many thanks! 2013-01-18 10:22:48
感谢参与，应助指数 +1
taofei: 金币+5, ★★★★★最佳答案, many thanks! 2013-01-18 10:22:48
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你第一步用 BF 加载，第二步用 BFA 加载，后者并没有删除 BF 命令施加的载荷。因此，第二步时的载荷实际上和第一步是一样的。 第三步施加载荷与第一步相同，因此和第一步以及第二步的载荷都是一样的；第四步也是如此。 你可以检查一下几个载荷步文件 (s01 ～ s04)，就可以看到这一点。 第二步和第四步时，为了删除上一步的载荷，可以使用 BFDELE,ALL 命令；或者使用和上一步相同的加载命令，但是载荷值改为零。 例如，加载部分修改为 (未经调试，仅供参考)： nsel,s,loc,Z,0 nsel,s,loc,x,0,0.001 nsel,r,loc,y,0.003,0.004 BF,all,hgen,q nsel,s,loc,Z,0 nsel,s,loc,x,0,0.001 nsel,r,loc,y,0,0.003 BF,all,hgen,q /SOLU tunif,300 toffst,273 ANTYPE,TRANS TIME,t DELTIM,t/10 KBC,0 AUTOTS,ON OUTRES,ALL,ALL ALLSEL,ALL SAVE LSWRITE,1, TIME,1000*t DELTIM,10*t !* TSRES,ERASE ALLSEL,ALL BFDELE,All SAVE LSWRITE,2, TIME,1000*t+t DELTIM,t/10 ALLSEL,ALL nsel,s,loc,Z,0 nsel,s,loc,x,0,0.001 nsel,r,loc,y,0.003,0.004 BF,all,hgen,q nsel,s,loc,Z,0 nsel,s,loc,x,0,0.001 nsel,r,loc,y,0,0.003 BF,all,hgen,q TSRES,ERASE ALLSEL,ALL SAVE LSWRITE,3, TIME,2000*t DELTIM,10*t !* TSRES,ERASE ALLSEL,ALL BFDELE,All SAVE LSWRITE,4, 或者： ! nsel,s,loc,Z,0 ! 由于下一句也是使用 s 参数进行选择，因此这一句是多余的。 nsel,s,loc,x,0,0.001 nsel,r,loc,y,0.003,0.004 BF,all,hgen,q ! nsel,s,loc,Z,0 ! 同上 nsel,s,loc,x,0,0.001 nsel,r,loc,y,0,0.003 BF,all,hgen,q /SOLU tunif,300 toffst,273 ANTYPE,TRANS TIME,t DELTIM,t/10 KBC,0 AUTOTS,ON OUTRES,ALL,ALL ALLSEL,ALL SAVE LSWRITE,1, TIME,1000*t DELTIM,10*t !* nsel,s,loc,x,0,0.001 nsel,r,loc,y,0.003,0.004 BF,all,hgen, 0 !* nsel,s,loc,x,0,0.001 nsel,r,loc,y,0,0.003 BF,all,hgen, 0 !* TSRES,ERASE ALLSEL,ALL SAVE LSWRITE,2, TIME,1000*t+t DELTIM,t/10 ALLSEL,ALL !* nsel,s,loc,x,0,0.001 nsel,r,loc,y,0.003,0.004 BF,all,hgen, q !* nsel,s,loc,x,0,0.001 nsel,r,loc,y,0,0.003 BF,all,hgen, q !* TSRES,ERASE ALLSEL,ALL SAVE LSWRITE,3, TIME,2000*t DELTIM,10*t !* nsel,s,loc,x,0,0.001 nsel,r,loc,y,0.003,0.004 BF,all,hgen, 0 !* nsel,s,loc,x,0,0.001 nsel,r,loc,y,0,0.003 BF,all,hgen, 0 !* TSRES,ERASE !* ALLSEL,ALL SAVE LSWRITE,4, |
2楼2013-01-17 21:14:46