考虑磁化及磁致伸缩特性各向异性的感应电机铁心电磁应力分析

doi:10.19595/j.cnki.1000-6753.tces.171462

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Abstract

Induction motor cores generate large vibration and noise because of the Maxwell electromagnetic stress between the stator and the rotor as well as the magnetostrictive stress of silicon steel. The non-oriented silicon steels in motor cores show remarkably anisotropic magnetic and magnetostrictive properties under sinusoidal and harmonic excitations. Thus, in order to compute motor stress accurately, this paper tests the anisotropic magnetic and magnetostrictive properties of silicon steel under sinusoidal and harmonic excitations. Then, an electromagneto-mechanical coupled model for motors considering anisotropic magnetic and magnetostrictive properties is proposed and stress distribution of motor cores is calculated. Finally, by comparing the model with and without considering the magnetic anisotropy, the stress distribution of anisotropy is analyzed. From the stress curve and spectrum under the harmonic excitation, it can be seen that the influence of harmonic on stress is obvious at 100 Hz and 200 Hz.

Key words： Finite element analysis motor vibration anisotropic stress distribution

Received: 26 October 2017 Published: 10 January 2019

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TM412

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	Articles by authors
	Ben Tong
	Chen Long
	Yan Rongge
	Zhang Yujiao
	Yang Qingxin

Cite this article:

Ben Tong,Chen Long,Yan Rongge等. Stress Analysis of Induction Motor Core Considering Anisotropic Magnetic and Magnetostrictive Properties[J]. Transactions of China Electrotechnical Society, 2019, 34(1): 66-74.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.171462 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I1/66

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