- 积分
- 0
- 注册时间
- 2009-2-28
- 仿真币
-
- 最后登录
- 1970-1-1
|
请问,各位高手一个 自然冷却问题 ,我做的焊缝自然冷却,没考虑对流和 辐射,只考虑热传导,实际情况是从720度过了 3秒到了 640度左右,可 是 我模拟的是 从720度左右3秒后到了 550度左右,材料是45钢,
/PREP7
lsclear,all ! clear all b.c.'s and options
et,1,solid90
et,2,0
et,3,0
et,4,0
MPREAD,'mat','mp',' ' '
/SOLU ! 进入求解器
tunif,25
LDREAD,TEMP,,,10,2,'mx1','rth',' '
ANTYPE,TRANS ! 设置为瞬态求解
KBC,1
OUTRES,,ALL ! 定义结果输出
TOFFST,273 ! 定义温度偏移量
ALLSEL,ALL ! 选择所有节点
AUTOTS,ON ! 打开自动时间开关
! 定义时间子步
TIME,3 ! 定义求解时间
SOLVE
finish
这是命令
MPTEMP
MPTEMP, 1, 0.2000000E+02,
MPDATA,DENS, 1, 1, 0.7900000E+04,
MPTEMP
MPTEMP, 1, 0.2000000E+02, 0.1000000E+03, 0.2000000E+03, 0.3000000E+03, 0.4000000E+03
MPTEMP, 6, 0.5000000E+03, 0.6000000E+03, 0.7000000E+03, 0.7200000E+03, 0.7420000E+03
MPTEMP, 11, 0.7600000E+03, 0.8000000E+03, 0.9000000E+03, 0.1000000E+04, 0.1100000E+04
MPTEMP, 16, 0.1200000E+04, 0.1300000E+04, 0.1400000E+04,
MPDATA,KXX , 1, 1, 0.4768000E+02, 0.4353000E+02, 0.4044000E+02, 0.3813000E+02, 0.3602000E+02
MPDATA,KXX , 1, 6, 0.3416000E+02, 0.3198000E+02, 0.2866000E+02, 0.2749000E+02, 0.2620000E+02
MPDATA,KXX , 1, 11, 0.2514000E+02, 0.2649000E+02, 0.2592000E+02, 0.2402000E+02, 0.2210000E+02
MPDATA,KXX , 1, 16, 0.2035000E+02, 0.1875000E+02, 0.1730000E+02,
MPTEMP
MPTEMP, 1, 0.2000000E+02, 0.1000000E+03, 0.2000000E+03, 0.3000000E+03, 0.4000000E+03
MPTEMP, 6, 0.5000000E+03, 0.6000000E+03, 0.7000000E+03, 0.7200000E+03, 0.7420000E+03
MPTEMP, 11, 0.7600000E+03, 0.8000000E+03, 0.8500000E+03, 0.9000000E+03, 0.9500000E+03
MPTEMP, 16, 0.1000000E+04, 0.1050000E+04, 0.1100000E+04, 0.1200000E+04, 0.1300000E+04
MPTEMP, 21, 0.1400000E+04,
MPDATA,C , 1, 1, 0.4720000E+03, 0.4800000E+03, 0.4980000E+03, 0.5240000E+03, 0.5600000E+03
MPDATA,C , 1, 6, 0.6150000E+03, 0.7000000E+03, 0.8540000E+03, 0.9160000E+03, 0.9860000E+03
MPDATA,C , 1, 11, 0.1064000E+04, 0.8060000E+03, 0.6850000E+03, 0.6370000E+03, 0.6140000E+03
MPDATA,C , 1, 16, 0.6000000E+03, 0.5800000E+03, 0.5930000E+03, 0.5900000E+03, 0.5880000E+03
MPDATA,C , 1, 21, 0.5870000E+03,
材料属性,
大家给看看 ,可能 是哪的问题 ,
和 网格多少有关系吗 ?还是其他的? |
|