An Experimental Study on Phases of Vibrations Caused by Magnetostriction and Electromagnetic Force

IF 7.9 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Yifei Cai;Fares S. EL-Faouri;Akira Chiba;Souichiro Yoshizaki
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引用次数: 0

Abstract

Magnetostriction and electromagnetic force are the two electromagnetic sources of motor vibration. Understanding the phases of the vibrations caused by these two factors is crucial for determining whether they interact to amplify or mitigate total vibration. This study focuses on the experimental investigation of the phase behaviors of these two types of vibrations. A frequency-dependent phase delay between magnetostrictive strain and flux density is observed when measuring the magnetostriction curves of three core materials. However, similar phase delay cannot be confirmed between the magnetostrictive vibration and flux density in three stator cores. Instead, the magnetostrictive vibration is found to be in phase with the flux density even under high-frequency excitations. In addition, the vibration caused by electromagnetic force is measured in a switched reluctance motor, which also demonstrates an anti-phase relationship with the flux density. These experimental findings provide fundamental insights into magnetostrictive vibration, which will guide further research on motor vibration considering magnetostriction effect.
磁致伸缩和电磁力引起振动相位的实验研究
磁致伸缩和电磁力是电机振动的两大电磁源。了解这两个因素引起的振动的阶段对于确定它们是否相互作用以放大或减轻总振动至关重要。本文着重对这两种振动的相行为进行了实验研究。在测量三种磁芯材料的磁致伸缩曲线时,观察到磁致伸缩应变与磁通密度之间存在频率相关的相位延迟。然而,三个定子铁心的磁致伸缩振动和磁通密度之间不能确定相似的相位延迟。相反,即使在高频激励下,磁致伸缩振动也与磁通密度成相位。此外,在开关磁阻电机中测量了电磁力引起的振动,结果表明,电磁力引起的振动与磁通密度呈反相关系。这些实验结果为进一步研究磁致伸缩振动提供了基础,为进一步研究考虑磁致伸缩效应的电机振动提供了指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
13.50
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