电工技术学报  2019, Vol. 34 Issue (2): 226-235    DOI: 10.19595/j.cnki.1000-6753.tces.171519
电机与电器 |
磁致伸缩引起的径向磁通电机定子铁心振动精确解析模型
吴胜男, 于慎波, 佟文明, 唐任远
沈阳工业大学电气工程学院 沈阳 110870
A Precise Analytical Model of Stator Core Vibration Due to Magnetostriction for Radial Flux Motors
Wu Shengnan, Yu Shenbo, Tong Wenming, Tang Renyuan
School of Electrical Engineering Shenyang University of Technology Shenyang 110870 China
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摘要 铁磁材料的磁致伸缩效应是引起电机振动噪声的主要原因之一。为了计算磁致伸缩引起的径向磁通电机定子铁心振动,基于压磁方程和牛顿第二定律分别建立磁致伸缩引起的电机定子铁心振动精确解析模型。利用解析模型确定了各物理量之间的关系。得出磁致伸缩引起的电机定子铁心振动与磁致伸缩系数成正比,定子铁心轭部和齿部的振动位移分别与轭部圆环半径、齿高近似呈线性关系,弹性模量对磁致伸缩引起的电机定子铁心振动影响很小。利用有限元法和实验测试验证了磁致伸缩引起的电机定子铁心振动精确解析模型的准确性。最后,利用定子铁心振动实验和有限元法对解析模型进行验证,通过解析计算值、有限元计算值与实验测试值的对比,验证了解析模型的准确性。
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吴胜男
于慎波
佟文明
唐任远
关键词 磁致伸缩径向磁通电机振动解析模型    
Abstract:The magnetostriction effect of magnetic material is one of the main causes of the motor vibration and noise. In order to calculate stator core vibration caused by magnetostriction for radial flux (RF) motors, a precise analytical model of such stator core vibration is set up based on piezomagnetic equations and Newton's second law. The relationship among physical quantities is illustrated by the analytical model. Stator core vibration due to magnetostriction is proportional to the magnetostriction coefficient. The vibration displacements of stator yoke and teeth are approximatively linear with the yoke radius and tooth height respectively. The influence of elasticity modulus on vibration caused by magnetostriction is very small. At last, by comparing the results of the analytical model, the finite element method and the experiments, the accuracy of the proposed analytical model is verified. Keywords: Magnetostriction, radial flux (RF), motor, vibration, analytical model
Key wordsMagnetostriction    radial flux (RF)    motor    vibration    analytical model   
收稿日期: 2017-11-06      出版日期: 2019-01-29
PACS: TM301  
基金资助:国家重点研发计划(2016YFB0300503),国家自然科学基金(51677122)和辽宁省教育厅科学研究(LGD20160006)资助项目
通讯作者: 吴胜男 女,1985年生,博士后,研究方向为特种电机及其控制。E-mail: imwushengnan@163.com   
作者简介: 于慎波 男,1958年生,教授,博士生导师,研究方向为电机噪声与振动抑制技术。E-mail: yushenbo@126.com
引用本文:   
吴胜男, 于慎波, 佟文明, 唐任远. 磁致伸缩引起的径向磁通电机定子铁心振动精确解析模型[J]. 电工技术学报, 2019, 34(2): 226-235. Wu Shengnan, Yu Shenbo, Tong Wenming, Tang Renyuan. A Precise Analytical Model of Stator Core Vibration Due to Magnetostriction for Radial Flux Motors. Transactions of China Electrotechnical Society, 2019, 34(2): 226-235.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.171519          https://dgjsxb.ces-transaction.com/CN/Y2019/V34/I2/226