[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

# Re: [femm] eddy-curr in a tube

- To: femm@yahoogroups.com
- Subject: Re: [femm] eddy-curr in a tube
- From: dcm3c@aol.com
- Date: Sat, 7 Apr 2001 23:59:36 EDT

In a message dated 4/4/01 10:01:28 AM Eastern Daylight Time,
rlbrambilla@cesi.it writes:

> Hi, femm-friends
> I have a tube of finite length=2L, inner-radius=b,
> outer radius=a, relative mag. perm.=mur,
> el. conductivity=sigma.
> An infinite alternating current line Io.exp(jwt) is positioned
> (1) on the axis of the tube;
> (2) parallel to the axis, out at a distance.

D o you know if any analytical
solutions for eddy currents in the tube exist to compare with FEMM analysis?

> Thank you in advance Roberto.
> Roberto Brambilla
> CESI
> Via Rubattino 54
> 20134 Milano
> tel +39.2.2125.5875
> fax +39.2.2125.610
> rlbrambilla@cesi.it

This seemed like it might make an interesting test case. I figured out an
analytical solution for the case where you have a wire carrying AC running
down the bore of a finite length steel tube and compared it to femm's
solution of the same problem. I think this is the same as your case (1).
Check out:
http://members.aol.com/_ht_a/gmagnetics/tube/tube.htm
David Meeker
--
http://members.aol.com/_ht_a/dcm3c

- Follow-Ups:
  - RE: [femm] eddy-curr in a tube
    - From: "McGee" <mcgee@mcmillan-mcgee.com>

- Prev by Date: Re: [femm] Re: Solenoid design
- Next by Date: Re: Linear Induction Motors
- Previous by thread: RE: [femm] Coil calculation spreadsheet
- Next by thread: RE: [femm] eddy-curr in a tube
- Index(es):
  - Date
  - Thread