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杨小亚

新虫 (初入文坛)

应助: 0 (幼儿园)
金币: 1.5
帖子: 1
在线: 6.5小时
虫号: 1453967
注册: 2011-10-21
专业: 金属结构材料

[求助] 求大神看下哪里有错误

/PREP7
ET,1,PLANE13
KEYOPT,1,1,4
MP,DENS,1,8900                !输入结晶器的材料性能参数
MP,KXX,1,,3.93
MP,C,1,385
MPTEMP,,,,,,,,
MPTEMP,1,30
MPTEMP,2,500
MPTEMP,3,1000
MPTEMP,4,1500
MPTEMP,5,2000
MPDATA,EX,1,,1.03E+011
MPDATA,EX,1,,8.4E+010
MPDATA,EX,1,,2.3E+010
MPDATA,EX,1,,2E+009
MPDATA,EX,1,,2E+008
MPDATA,EX,1,,2E+008
MPDATA,NUXY,1,,0.3
MPDATA,NUXY,1,,0.3
MPDATA,NUXY,1,,0.3
MPDATA,NUXY,1,,0.3
MPDATA,NUXY,1,,0.3
MP,ALPX,1,1.66E-5
                           !输入铸件材料性能参数
                           !铸件热传导系数
MPTEMP,,,,,,,,

MPTEMP,1,20
MPTEMP,2,100
MPTEMP,3,200
MPTEMP,4,300
MPTEMP,5,400
MPTEMP,6,425
MPTEMP,7,600
MPTEMP,8,630
MPTEMP,9,700
MPTEMP,10,800
MPDE,KXX,2
MPDATA,KXX,2,,77
MPDATA,KXX,2,,87
MPDATA,KXX,2,,97
MPDATA,KXX,2,,107
MPDATA,KXX,2,,117
MPDATA,KXX,2,,122
MPDATA,KXX,2,,60
MPDATA,KXX,2,,58
MPDATA,KXX,2,,240
MPDATA,KXX,2,,240
MPTEMP,,,,,,,,             !铸件比热
MPTEMP,1,20
MPTEMP,2,100
MPTEMP,3,200
MPTEMP,4,300
MPTEMP,5,400
MPTEMP,6,600
MPTEMP,7,700
MPDE,C,2
MPDATA,C,2,,1020
MPDATA,C,2,,1020
MPDATA,C,2,,1100
MPDATA,C,2,,1150
MPDATA,C,2,,1220
MPDATA,C,2,,1400
MPDATA,C,2,,1400
MP,EX,2,45000             !铸件弹性模量
MP,ALPX,2,26.8E-6          !铸件线膨胀系数
MP,NUXY,2,0.35             !铸件泊松比
                           !几何建模
                           !生成矩形面
RECTNG,0,0.05,0,0.01
RECTNG,0.02,0.03,0.01,0.1
RECTNG,0,0.05,0.1,0.11
RECTNG,-0.01,0.06,-0.01,0.02
RECTNG,0.01,0.04,0.02,0.09
RECTNG,-0.01,0.06,0.09,0.12
AADD,1,2,3                !面相加操作
APLOT,ALL
AADD,4,5,6
NUMCMP,AREA                !压缩面编号
APLOT,ALL
SMRTSIE,4
MAT,2
AMESH,1                   !对面进行网格划分
APLOT,ALL                   !显示面
MAT,1
AMESH,2
NUMMRG,NODE                !合并相同节点
NUMCMP.LINE                !压缩线段数
NUMCMP,NODE                !压缩节点数
SAVE
LPLOT,ALL                   !显示线段
/PNUM,LINE
LSEL,S,LINE,,3,9,2
LSEL,A,LINE,,13,20
SFL,ALL,CONV,454.5,,25    !施加对流边界条件
ALLSEL
SAVE
FINISH
/SOLU                      !进入求解器
ANTYPE,TRANS
TIMINT,OFF                !进行稳态分析，确定初始条件
TIME,0.01
DELTIM,0.01
ASEL,S,,,1
NSLA,S,1
D,ALL,TEMP,700             !施加温度载荷
ALLSEL
ASEL,S,,,2
NSLL,S,1
D,ALL,TEMP,25             !施加温度载荷
ALLSEL
LSEL,S,,,21
NSLL,S,1
D,ALL,UY
ALLSEL
SOLVE                      !得到初始温度分布
TIMINT,ON                   !进行瞬态分析
TIME,120                   !设置计算终止时间
AUTOTS,-1
DELTIM,1,0.1,25,1
KBC,0
DDELE,ALL,TEMP             !删除稳态分析中定义的节点温度
OUTRES,ALL,ALL
SOLVE
FINISH

这是镁合金充入一个工字型的铸造结晶器后冷却过程中的温度场分布，是参照书上的例子做出来的，但是和书上的结果不一样，内部的铸件初始温度竟然是25度。

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