Characterization of the audible magnetic noise emitted by traction motors in railway rolling stock - Université de technologie de Compiègne Access content directly
Journal Articles Noise Control Engineering Journal Year : 2009

Characterization of the audible magnetic noise emitted by traction motors in railway rolling stock

Abstract

This paper first presents the analytical models of an ALSTOM simulation software, DIVA, which computes the vibratory and acoustic behavior of a variable-speed induction machine due to Maxwell forces. This radial magnetic pressure in the air-gap makes the stator vibrate in the audible range, creating the so-called magnetic noise characterized by high tonality. On the basis of these analytical models, the main magnetic vibrations due to slotting, pulse-width modulation (PWM) harmonics and their interaction are then analytically characterized. Their number of nodes, velocity and propagation direction are experimentally validated by visualizing the stator deflection shapes. Finally, some experimental validations of the simulation tool are presented. Both analytical results and simulations show that some quieter motors can be designed with motor geometry (especially slot numbers) and PWM strategy.
No file

Dates and versions

hal-01981107 , version 1 (14-01-2019)

Identifiers

Cite

J. Le Besnerais, Vincent Lanfranchi, M. Hecquet, P. Brochet. Characterization of the audible magnetic noise emitted by traction motors in railway rolling stock. Noise Control Engineering Journal, 2009, 57 (5), pp.391. ⟨10.3397/1.3204501⟩. ⟨hal-01981107⟩
27 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More