请教大佬们，我是做SLM仿真的，我利用下面的命令流计算得到的温度场温度很高，系统直接提示超过阀值无法运算，不知道到底是哪里的原因，附上命令流求大佬们指导一下 finish /clear /prep7 /unit,si et,1,solid70 !****材料属性设置**** et,1,solid70 mptemp,1,20,200,400,600,800,1000 mptemp,7,1200,1400,1500,1600,1700 mpdata,c,1,1,470,508,550,592,634,676 mpdata,c,1,7,719,765,900,873,873 mpdata,kxx,1,1,13.31,16.33,19.47,22.38,25.07,27.53 mpdata,kxx,1,7,29.76,31.95,63.78,63.78,63.78 mpdata,c,2,1,470,508,550,592,634,676 mpdata,c,2,7,719,765,900,873,873 mpdata,kxx,2,1,0.15,0.23,0.32,0.41,0.50,0.59 mpdata,kxx,2,7,0.68,0.77,0.85,0.91,1.04 !* mptemp mptemp,1,0,500,1000,1500 mpdata,enth,1,1,1.25E+5,3.375E+5,6E+5,8.375E+5 mpdata,enth,2,1,1.25E+5,3.375E+5,6E+5,8.375E+5 mpdata,dens,1,1,8000,8000,8000 !* mptemp mptemp,1,20,1380,1381 mpdata,dens,2,1,5013,7833,8000 block,0,0.0012,0,0.0008,0,0.0006 block,0,0.0012,0,0.0008,0.0006,0.00063 vglue,all lesize,17,0.00001 lesize,18,0.00001 lesize,26,0.000015 type,1 mat,2 vsweep,3 !****粉床网格划分**** type,1 mat,1 Extopt,esize,15,0.2 Vsweep,1,1,2 !****基板网格划分*** !************************* ALLSEL,ALL !****对流载荷加载(除加工面外其他外表面都选上)******** SFA,5,,CONV,480,22 SFA,3,,CONV,480,22 SFA,6,,CONV,480,22 SFA,4,,CONV,480,22 SFA,16,,CONV,480,22 SFA,15,,CONV,480,22 SFA,14,,CONV,480,22 SFA,13,,CONV,480,22 SFA,1,,CONV,480,22 ALLSEL,ALL /REP,FAST !**************************** TUNIF,22 !预热温度 FINISH /SOL !****激光参数设置**** P=50 !激光功率 v=1 !激光扫描速度 d=0.12e-3 !激光扫描间距 f=0.35e-7 pi=3.1415926 a=0.00009 b=0.00009 c=0.00002 !********************** ! ****瞬态求解参数设置**** lstep=0.04e-3 !扫描步长 time_step=lstep/v !载荷步时间大小 ANTYPE,4 !定义新分析 TRNOPT,FULL TOFFST,273, !定义摄氏度的温度偏移量 !* TIMINT,1 !打开时间积分选项进行瞬态分析 !************************ OUTRES,ALL,ALL my_time=0 XX=0.2e-3 !XX,YY用于定义局部坐标的原点 YY=0.2e-3 ZZ=0.63e-3 LOCAL,11,0,XX,YY,ZZ !***************定义热源函数***** *DEL,_FNCNAME *DEL,_FNCMTID *DEL,_FNC_C1 *DEL,_FNC_C2 *DEL,_FNC_C3 *DEL,_FNC_C4 *DEL,_FNC_C5 *DEL,_FNC_C6 *DEL,_FNCCSYS *SET,_FNCNAME,'hflux' *DIM,_FNC_C1,,1 *DIM,_FNC_C2,,1 *DIM,_FNC_C3,,1 *DIM,_FNC_C4,,1 *DIM,_FNC_C5,,1 *DIM,_FNC_C6,,1 *SET,_FNC_C1(1),p *SET,_FNC_C2(1),f *SET,_FNC_C3(1),pi *SET,_FNC_C4(1),a *SET,_FNC_C5(1),b *SET,_FNC_C6(1),c *SET,_FNCCSYS,11 ! /INPUT,hflux.func,,,1 *DIM,%_FNCNAME%,TABLE,8,44,1,,,,%_FNCCSYS% ! ! Begin of equation: ((6*(3^0.5)*p*f)/(pi*(pi^0.5)*a*b*c))*exp((-3* ! ({X}^2)/(a^2))-(3*({Y}^2)/(b^2))-(3*({Z}^2)/(c^2))) *SET,%_FNCNAME%(0,0,1), 0.0, -999 *SET,%_FNCNAME%(2,0,1), 0.0 *SET,%_FNCNAME%(3,0,1), %_FNC_C1(1)% *SET,%_FNCNAME%(4,0,1), %_FNC_C2(1)% *SET,%_FNCNAME%(5,0,1), %_FNC_C3(1)% *SET,%_FNCNAME%(6,0,1), %_FNC_C4(1)% *SET,%_FNCNAME%(7,0,1), %_FNC_C5(1)% *SET,%_FNCNAME%(8,0,1), %_FNC_C6(1)% *SET,%_FNCNAME%(0,1,1), 1.0, -1, 0, 3, 0, 0, 0 *SET,%_FNCNAME%(0,2,1), 0.0, -2, 0, 0.5, 0, 0, -1 *SET,%_FNCNAME%(0,3,1), 0, -3, 0, 1, -1, 17, -2 *SET,%_FNCNAME%(0,4,1), 0.0, -1, 0, 6, 0, 0, -3 *SET,%_FNCNAME%(0,5,1), 0.0, -2, 0, 1, -1, 3, -3 *SET,%_FNCNAME%(0,6,1), 0.0, -1, 0, 1, -2, 3, 17 *SET,%_FNCNAME%(0,7,1), 0.0, -2, 0, 1, -1, 3, 18 *SET,%_FNCNAME%(0,8,1), 0.0, -1, 0, 0.5, 0, 0, 19 *SET,%_FNCNAME%(0,9,1), 0.0, -3, 0, 1, 19, 17, -1 *SET,%_FNCNAME%(0,10,1), 0.0, -1, 0, 1, 19, 3, -3 *SET,%_FNCNAME%(0,11,1), 0.0, -3, 0, 1, -1, 3, 20 *SET,%_FNCNAME%(0,12,1), 0.0, -1, 0, 1, -3, 3, 21 *SET,%_FNCNAME%(0,13,1), 0.0, -3, 0, 1, -1, 3, 22 *SET,%_FNCNAME%(0,14,1), 0.0, -1, 0, 1, -2, 4, -3 *SET,%_FNCNAME%(0,15,1), 0.0, -2, 0, 0, 0, 0, 0 *SET,%_FNCNAME%(0,16,1), 0.0, -3, 0, 1, 0, 0, -2 *SET,%_FNCNAME%(0,17,1), 0.0, -4, 0, 1, -2, 2, -3 *SET,%_FNCNAME%(0,18,1), 0.0, -2, 0, 3, 0, 0, -4 *SET,%_FNCNAME%(0,19,1), 0.0, -3, 0, 1, -4, 3, -2 *SET,%_FNCNAME%(0,20,1), 0.0, -2, 0, 2, 0, 0, 2 *SET,%_FNCNAME%(0,21,1), 0.0, -4, 0, 1, 2, 17, -2 *SET,%_FNCNAME%(0,22,1), 0.0, -2, 0, 1, -3, 3, -4 *SET,%_FNCNAME%(0,23,1), 0.0, -3, 0, 2, 0, 0, 20 *SET,%_FNCNAME%(0,24,1), 0.0, -4, 0, 1, 20, 17, -3 *SET,%_FNCNAME%(0,25,1), 0.0, -3, 0, 1, -2, 4, -4 *SET,%_FNCNAME%(0,26,1), 0.0, -2, 0, 2, 0, 0, 3 *SET,%_FNCNAME%(0,27,1), 0.0, -4, 0, 1, 3, 17, -2 *SET,%_FNCNAME%(0,28,1), 0.0, -2, 0, 3, 0, 0, -4 *SET,%_FNCNAME%(0,29,1), 0.0, -5, 0, 1, -2, 3, -4 *SET,%_FNCNAME%(0,30,1), 0.0, -2, 0, 2, 0, 0, 21 *SET,%_FNCNAME%(0,31,1), 0.0, -4, 0, 1, 21, 17, -2 *SET,%_FNCNAME%(0,32,1), 0.0, -2, 0, 1, -5, 4, -4 *SET,%_FNCNAME%(0,33,1), 0.0, -4, 0, 1, -3, 2, -2 *SET,%_FNCNAME%(0,34,1), 0.0, -2, 0, 2, 0, 0, 4 *SET,%_FNCNAME%(0,35,1), 0.0, -3, 0, 1, 4, 17, -2 *SET,%_FNCNAME%(0,36,1), 0.0, -2, 0, 3, 0, 0, -3 *SET,%_FNCNAME%(0,37,1), 0.0, -5, 0, 1, -2, 3, -3 *SET,%_FNCNAME%(0,38,1), 0.0, -2, 0, 2, 0, 0, 22 *SET,%_FNCNAME%(0,39,1), 0.0, -3, 0, 1, 22, 17, -2 *SET,%_FNCNAME%(0,40,1), 0.0, -2, 0, 1, -5, 4, -3 *SET,%_FNCNAME%(0,41,1), 0.0, -3, 0, 1, -4, 2, -2 *SET,%_FNCNAME%(0,42,1), 0.0, -2, 7, 1, -3, 0, 0 *SET,%_FNCNAME%(0,43,1), 0.0, -3, 0, 1, -1, 3, -2 *SET,%_FNCNAME%(0,44,1), 0.0, 99, 0, 1, -3, 0, 0 ! End of equation: ((6*(3^0.5)*p*f)/(pi*(pi^0.5)*a*b*c))*exp((-3*({X}^2)/(a^2)) ! -(3*({Y}^2)/(b^2))-(3*({Z}^2)/(c^2))) !--> !************************************************* *DO,i,0,5,1 LOCAL,11,0,XX,YY,ZZ !****每个载荷步的求解参数设置**** my_time=my_time+time_step TIME,my_time AUTOTS,1 DELTIM,lstep/v,lstep/v,lstep/v, KBC,1 !******************************** !****加载**** SFA,8,,HFLUX, %HFLUX% !************* !****求解，完成后删除载荷**** ALLSEL,ALL !save SOLVE SFADELE,8,,HFLUX !**************************** XX=XX+lstep *ENDDO !****显示结果**** FINISH /POST1 !* /EFACET,1 PLNSOL, TEMP,, 0 !****************