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dys1111

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專業(yè): 玻璃材料

[求助] 磁場(chǎng)與電磁力的計(jì)算

大家好:
      建立了一個(gè)簡(jiǎn)單的三維模型，通高頻電的線圈產(chǎn)生磁場(chǎng)，現(xiàn)在的問(wèn)題是頻率變化時(shí)磁場(chǎng)不變，電磁力為0，感覺(jué)線圈中電流加載有問(wèn)題，或是邊界條件設(shè)置有誤，請(qǐng)各位大�？匆幌拢粍俑屑�。以下是源程序：

/prep7
/rgb,index,100,100,100,0
/rgb,index,80,80,80,13
/rgb,index,60,60,60,14
/rgb,index,0,0,0,15
CYLIND,0,0.12,0,0.293,0,30
CYLIND,0,0.065,0.04,0.253, 0,30
CYLIND,0.075,0.092,0.04,0.055, 0,30
CYLIND,0.075,0.092,0.058,0.073, 0,30
CYLIND,0.075,0.092,0.076,0.091, 0,30
CYLIND,0.075,0.092,0.094,0.109, 0,30
CYLIND,0.075,0.092,0.112,0.127, 0,30
CYLIND,0.075,0.092,0.13,0.145,0,30
CYLIND,0.075,0.092,0.148,0.163,0,30
CYLIND,0.075,0.092,0.166,0.181,0,30
CYLIND,0.075,0.092,0.184,0.199, 0,30
CYLIND,0.075,0.092,0.202,0.217, 0,30
CYLIND,0.075,0.092,0.22,0.235, 0,30
CYLIND,0.075,0.092,0.238,0.253,  0,30
VOVLAP,all
NUMCMP,ALL             !壓縮模型數(shù)目
VSEL,ALL

ET,1,SOLID117                   !ALUMINUM PLATE
ET,2,SOLID117,                      !COIL
ET,3,SOLID117                      !AIR
emunit,mks          ! set magnetic units

MP,MURX,1,8
MP,RSVX,1,2.1e-7 !metal
MP,MURX,2,1
MP,RSVX,2,1.75e-8  !coin
MP,MURX,3,1!air

vsel,s,volu,,1
vatt,1,1,1
esize,.005
vsweep,all

vsel,s,volu,,2,13  !choose coin
vatt,2,1,2,
esize,.008
esize,.008
vsweep,all
NSLA,S,1
CP,j,curr,ALL

vsel,s,volu,,14
vatt,3,1,3
esize,.008
mshkey,0
mshape,1,3d
vmesh,all

lsel,s,line,,162,163
lsel,a,line,,17
nsll,s,1
d,all,Az,0 !加磁力線平行邊界條件

/SOLU
CSYS,1

ESEL,S,MAT, ,2
BFE,ALL,JS,, ,-0.84E8,
ESEL,ALL

ANTYP,HARM !諧性分析
HARFR,2000 !分析頻率
allsel,all

solve

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