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最近在做一个电磁推进的电路-磁场-结构的耦合分析,可是求解时老不能收敛,求楼主和各位朋友给些指点啊!
问题:就是一个电容器给一个外线圈放电,线圈内部的圆筒感应出涡流,我想分析涡流对内部圆筒径向结构上可能造成的影响,Y方向我都固定了。电路如图1,有限元模型如图2.划分网格如图3.程序我列在下面了。弄了好几天了,各位帮帮忙了。
图1
图2
[localimg=180,147]3[/localimg]
图3
程序!
/COM,3504
/PREP7
/TITLE,VZ,WORK_2
ET,1,53,3,,1 !线圈
ET,2,13,,,1 !空气
ET,3,13,4,,1 !抛体
ET,4,110,,,1 !远场单元
EMUNIT,MKS
MP,MURX,1,1
MP,MURX,2,1
MP,MURX,3,1 !磁导率
MP,MURX,9,1
MP,RSVX,1,3E-8
MP,RSVX,3,2.8E-8 !电导率
MP,EX,3,7.6E10
MP,NUXY,3,0.35 !泊松比
R,1,0.025,50,,1,0.9
S=0.07
R=3*S/2
N,1 !电路单元建模
*REPEAT,6,1
RECTNG,0.008,0.02,0.15,0.4 !抛体
RECTNG,0.07,0.12,0,0.25 !线圈
PCIRC,0,15*S,0,90 !远场单元
PCIRC,0,12*S,0,90 !空气
AOVLAP,ALL
NUMCMP,ALL
/PNUM,AREA,1
APLOT
ALLSEL,ALL
!分配材料
ASEL,S,AREA,,1 !抛体
AATT,3,,3
ASEL,S,AREA,,2 !线圈
AATT,1,1,1
ASEL,S,AREA,,4 !空气
AATT,2,1,2
ASEL,S,AREA,,3 !远场
AATT,9,,4
ASEL,ALL
CSYS,1
!划分网格
LSEL,S,LOC,X,13.5*S
LESIZE,ALL,,,1
ESIZE,,15
AMESH,3
ASEL,ALL
MSHAPE,0,2D
SMRTSIZE,2
MSHKEY,0
ESIZE,S/5
AMESH,2
AMESH,1
SMRTSIZE,2
ESIZE,S/4
MSHAPE,1,2D
MSHKEY,0
AMESH,4
LSEL,S,LINE,,1
NSLL,S
D,ALL,UY,0
LSEL,S,LINE,,3
NSLL,S
D,ALL,UY,0
ESEL,S,MAT,,1
NSLE,S
CP,1,CURR,ALL
CP,2,EMF,ALL
ALLSEL,ALL
CSYS,1
NSEL,S,LOC,X,15*S
SF,ALL,INF
CSYS,0
NSEL,S,LOC,X,0
D,ALL,AZ,0
!电路建立
ET,5,124,2 !电容
ET,6,124,0 !电阻
ET,7,124,1 !电感
ET,8,124,5 !耦合区
ET,9,125 !二极管
R,4,592E-6,500
R,5,0.2
R,6,2E-5,0
R,7,1
R,8
N1=NODE(S,0,0)
TYPE,5
REAL,4
E,2,1
TYPE,6
REAL,5
E,2,3
TYPE,7
REAL,6
E,3,4
TYPE,8
REAL,7
E,4,1,N1
TYPE,9
REAL,8
E,1,2
D,1,VOLT,0
NSEL,ALL
ESEL,ALL
FINISH
allsel,all
!求解
/SOLU
ANTYPE,TRANS
OUTRES,ALL,ALL
TIME,0.001
DELTIM,0.001/1000,0.001/1000,0.001/500
SOLVE
finish |
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