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Reduction of Surface Vibrations of a Cup-Shaped Rotor in a Brushless DC Motor Using FEA
Technical Paper
1999-01-1792
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Vibrations of a cup-shaped rotor in a bushless DC motor are investigated. The 4-phase motor has 12 pole pieces in the stator which is surrounded by a cylindrical, cup-shaped rotor with 14 magnets. The strong, pulsating magnetic forces acting on the rotor result in strong vibrations. Finite Element Analysis is used to analyze the vibrational pattern of the rotor. The impact of small changes in the dimensions of the rotor on its vibrational frequencies is also investigated. Details of FEA modeling will be presented and its predictions will be compared with the experimental data.
Authors
Citation
Kumar, D., Qatu, M., and Dougherty, M., "Reduction of Surface Vibrations of a Cup-Shaped Rotor in a Brushless DC Motor Using FEA," SAE Technical Paper 1999-01-1792, 1999, https://doi.org/10.4271/1999-01-1792.Also In
References
- Hendershot J.R. Jr. Miller T.J.E. ‘Design of Brushless Permanent-Magnet Motors,’ Magna Physics Publishing and Clarendon Press Oxford 1994
- Kang H. ‘The Study of DC Motor Noise and Vibration,’ United Automotive Technologies SAE 951350
- Proca A.B. Keyhani A. ‘Identification of Power Steering System Dynamic Models,’ Elsevier Science, MECH MS270 Feb. 1998
- User's Manual The MacNeal-Schwendler Corporation Los Angeles, CA July 1997