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© Copyright 2002 Professor F.R. Hall
- University of Wolverhampton.
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C. Lucas*, D. Shahmirzadi** and H. Ghafoorifard***
*Dep. Of Electrical and computer Eng., University Of Tehran, and School
Of
Intelligent Systems, IPM, Tehran, Iran
P.O.Box 19395-5746, Email: Lucas@ipm.ir
**Dep. Of Mechanical Eng. , University Of Tehran, Tehran, Iran
Email: Danial_Shahmirzadi@me.ut.ac.ir
***Dep. Of Electrical Eng., Amirkabir University Of Technology,
and School Of
Intelligent Systems, IPM, Tehran, Iran
Email: h_ghafoorifard@hotmail.com
FREE ABSTRACT (to read the full article, please log in below).
Elimination of stator oscillations in
electromotors are among the least
studied, but important problem that can influence the
electric performance, mechanical wear and tear and acoustic noise.
In this paper, we aim to manipulate the natural frequencies
and deflections in the body of the stator through
using convenient set of fins (that are used in all machines for improved
heat transfer), in our modal analysis. We focused on
SR motors, whose stator oscillation problems due to radial
forces have been reported as more acute as compared to similar motors.
We have shown that, it is possible to virtually
eliminate the oscillations from the body of the
stator and position natural frequencies of several modes of
oscillations in a uniform and lower range, through selecting fins of
proper length and number.
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© Copyright 2002 Professor F.R. Hall
- University of Wolverhampton.
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