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Content Provider | IEEE Xplore Digital Library |
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Author | Colby, R.S. Mottier, F. Miller, T.J.E. |
Copyright Year | 1995 |
Description | Author affiliation: United Technol. Res. Center, East Hartford, CT, USA (Colby, R.S.) |
Abstract | Acoustic noise in the switched reluctance motor (SRM) is caused primarily by the deformation of the stator lamination stack. Acoustic noise is most severe when the periodic excitation of the SRM phases excites a natural vibration mode of the stack. The natural vibration modes and frequencies of a four-phase, 8/6 SRM are examined. Structural finite element analysis is used to compute the natural modes and frequencies. Impulse tests on the stator stack verify the calculations and show which modes are excited. Heuristic arguments are developed to predict the operating conditions that will excite the natural modes. Measurement of vibration while the machine is under load shows which operating conditions excite the natural modes and verifies the predictions. An approximate formula is derived to predict the frequency of the fundamental vibration mode in terms of lamination dimensions and material properties. The formula is validated by comparison with finite element calculations for several laminations, and hence is shown to be useful in design trade-off studies. |
Starting Page | 441 |
Ending Page | 447 |
File Size | 708563 |
Page Count | 7 |
File Format | |
ISBN | 0780330080 |
ISSN | 01972618 |
DOI | 10.1109/IAS.1995.530333 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 1995-10-08 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Acoustic testing Acoustic noise Lamination Stators Vibration measurement Reluctance machines Frequency Finite element methods Impulse testing Reluctance motors |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering Industrial and Manufacturing Engineering Control and Systems Engineering |
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