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Switched reluctance (SR) motors are becoming more and more prominent in both industry and academia due to their simple design characteristics and flexibility [3]. However, the pulsating nature of the torque in this kind of motor tends to generate unwanted accoustical noise and large, undesirable vibrations [2]. Many researchers have conducted complex experimental and finite-element studies to determine the sources of these vibrations, but comparatively little work has been done to analytically model these phenomena using first principles [2] [8] [3]. The goal of this paper then is to derive an anlytical model for the vibrations of an SR motor, and to predict the frequency response of a particular motor configuration. These results will help guide future work to reduce vibrations in these motors, therby making them more industrially viable.Copyright © 2015 by ASME |
