[Getdp] unable to cross the air-gap

Tue Oct 8 16:03:37 CEST 2013

You were right! With linear material for the cores, I get the same result as
with the formulation I used with GetDP :

Joseph

--

Joseph Frippiat
Senior Developer - UPS Division

KST S.A. - Site of Battice
Cour Lemaire, 16
B-4651 BATTICE
BELGIUM
Tel : +.32.4.247.01.67
Fax : +.32.87.31.42.21
E-mail : frippiat.j at kst.be
Web : www.kst-ups.com

Head office : Cour Lemaire, 16 - 4651 Battice (Belgium)
RPM Liège (Belgium) : 0423.472.603

From: François Henrotte [mailto:francois.henrotte at uclouvain.be] 
Sent: mardi 8 octobre 2013 14:30
To: Joseph Frippiat
Cc: getdp at geuz.org
Subject: Re: [Getdp] unable to cross the air-gap

Le 8 oct. 2013 à 14:11, Joseph Frippiat a écrit :

Hello,

in the simple 2D magnetostatic model attached to this e-mail, the magnetic
induction “refuses” to cross the air-gap.

It seem normal to me,

due to the magnetic short circuiting of the permanent magnet.

Try with murCore = 1 (instead of 200) and the field lines

will gently cross the air gap.

Regards,

François

Could someone tell me why it is so and explain me what I need to change.

(to solve the model I use this command : ‘getdp machine2 -solve MagSta_a
-pos a’)

Thanks in advance for any answer.

Joseph

--

Joseph Frippiat
Senior Developer - UPS Division

KST S.A. - Site of Battice
Cour Lemaire, 16
B-4651 BATTICE
BELGIUM
Tel : +.32.4.247.01.67
Fax : +.32.87.31.42.21
E-mail : frippiat.j at kst.be
Web : www.kst-ups.com

Head office : Cour Lemaire, 16 - 4651 Battice (Belgium)
RPM Liège (Belgium) : 0423.472.603

<machine2.geo><machine2_data.geo><Magnetostatics.pro><machine2.pro>_________
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--

François Henrotte Dr Ir

UCL - Bâtiment Euler - Av. G. Lemaître 4-6 

B-1348 Louvain-la-Neuve

Tél: +32(0)10 47 23 64  Fax: id. 23 50

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