求助,三维块导体加环形电流
一个圆盘状的导体线圈导体线圈内要加载环形电流,在开缝处,一个面耦合volt自由度,把电流加在面上的一个点上,另一个面设置volt=0,外面加球形的空气场(这个图里外面的空气场还没画)
可是求解完以后,没有结果显示。
我想问一下,这样加载电流对不对?加载荷时要修改单元局部坐标系吗?平行边界条件应该如何加?
求指教,非常感谢!
我的命令流
/PREP7
!*
ET,1,SOLID97
!*
ET,2,SOLID97
!*
KEYOPT,1,1,1
KEYOPT,1,2,0
KEYOPT,1,5,0
!*
KEYOPT,1,1,1
!*
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,MURX,1,,1
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,RSVX,1,,1.7e-8
MPTEMP,,,,,,,,
MPTEMP,1,0
MPDATA,MURX,2,,1
RECTNG,0.02,0.06,0.005,-0.005,
CYL4,0.02,0,0.005
FLST,2,2,5,ORDE,2
FITEM,2,1
FITEM,2,-2
AADD,P51X
K,1,0,0.005,0,
K,100,0,0.005,0,
K,101,0,-0.005,0,
FLST,2,1,5,ORDE,1
FITEM,2,3
FLST,8,2,3
FITEM,8,100
FITEM,8,101
VROTAT,P51X, , , , , ,P51X, ,360,2,
/VIEW,1,1,1,1
/ANG,1
/REP,FAST
BLOCK,-0.001,0.001,0.006,-0.006,0.01,0.07,
FLST,2,2,6,ORDE,2
FITEM,2,1
FITEM,2,-2
VSBV,P51X, 3
FLST,2,3,6,ORDE,3
FITEM,2,2
FITEM,2,4
FITEM,2,-5
VADD,P51X
SPH4,0,0,0.15
FLST,2,2,6,ORDE,2
FITEM,2,1
FITEM,2,-2
VOVLAP,P51X
CM,_Y,VOLU
VSEL, , , , 1
CM,_Y1,VOLU
CMSEL,S,_Y
!*
CMSEL,S,_Y1
VATT, 1, , 1, 0
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
CM,_Y,VOLU
VSEL, , , , 3
CM,_Y1,VOLU
CMSEL,S,_Y
!*
CMSEL,S,_Y1
VATT, 2, , 2, 0
CMSEL,S,_Y
CMDELE,_Y
CMDELE,_Y1
!*
ESIZE,0.005,0,
MSHKEY,0
MSHAPE,1,3d
CM,_Y,VOLU
VSEL, , , , 1
CM,_Y1,VOLU
CHKMSH,'VOLU'
CMSEL,S,_Y
!*
VMESH,_Y1
!*
CMDELE,_Y
CMDELE,_Y1
CMDELE,_Y2
!*
ESIZE,0.01,0,
MSHKEY,0
MSHAPE,1,3d
CM,_Y,VOLU
VSEL, , , , 3
CM,_Y1,VOLU
CHKMSH,'VOLU'
CMSEL,S,_Y
!*
VMESH,_Y1
!*
CMDELE,_Y
CMDELE,_Y1
CMDELE,_Y2
!*
! SAVE, mesh,db,D:\Users\
LPLOT
ASEL,S, , , 24
NSLA,S,1
FINISH
/PREP7
FLST,4,35,1,ORDE,12
FITEM,4,2
FITEM,4,9
FITEM,4,-17
FITEM,4,145
FITEM,4,150
FITEM,4,159
FITEM,4,166
FITEM,4,176
FITEM,4,202
FITEM,4,-209
FITEM,4,312
FITEM,4,-323
CP,1,VOLT,P51X
ASEL,S, , , 30
NSLA,S,1
FINISH
/SOL
FLST,2,35,1,ORDE,10
FITEM,2,895
FITEM,2,902
FITEM,2,921
FITEM,2,-928
FITEM,2,1029
FITEM,2,1034
FITEM,2,1044
FITEM,2,1051
FITEM,2,1058
FITEM,2,-1078
/GO
!*
D,P51X,VOLT,0
ALLSEL,ALL
!*
ANTYPE,3
HARFRQ,2.8e6,0,
NSUBST, ,
KBC,0
!*
FLST,2,1,1,ORDE,1
FITEM,2,23089
/GO
!*
F,P51X,AMPS,672,1164
/STATUS,SOLU
SOLVE
FINISH
电流是无旋的,这样直接加载电流是不行,可以尝试加载电压,或者建立1/4或1/2模型,使求解域边界与导体横截面边界(对称边界)相切,在一端耦合电压自由度吗,加载总电流,另一端设基准电压为零即可。 可以尝试36+96单元配合
另外可以简化为2d,能简化的尽量简化,不然3d网格划分增加很多麻烦,尤其新手不一定能做好 我感觉得将单元坐标系改成柱坐标系吧。我也是新手。。。
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