牵引电动机
牵引(地质)
汽车工程
工程类
声学
库存(枪支)
噪音(视频)
电气工程
机械工程
物理
计算机科学
图像(数学)
人工智能
作者
Jean Le Besnerais,Vincent Lanfranchi,Michel Hecquet,P. Brochet
出处
期刊:Noise Control Engineering Journal
[Institute of Noise Control Engineering]
日期:2009-01-01
卷期号:57 (5): 391-391
被引量:11
摘要
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.
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