A New Passive Methodology for Reducing the Noise in Electrical Machines: Impact of Some Parameters on the Modal Analysis

作者：Torregrossa Dimitri^*; Peyraut Francois; Cirrincione Maurizio; Espanet Christophe; Cassat Alain; Miraoui Abdellatif

来源：IEEE Transactions on Industry Applications, 2010, 46(5): 1899-1907.

DOI：10.1109/TIA.2010.2057491

• Finite-element method (FEM)
• passive mitigation of vibration and noise
• skewed stator
• structural analysis

This paper presents a 3-D finite-element modal analysis to reduce the acoustical power radiated by a brushless permanent-magnet synchronous machines and avoid any resonance phenomena. The method is able to analyze the impact of some design parameters on all the resonance frequencies for reducing the total sound power and gives some guidelines to their choice. A less noisy prototype has been analyzed in simulation without any acoustic calculation and then built and validated with experimental results.

• 出版日期2010-10