New Equivalent model and Modal Analysis of Stator Core-Winding System of Permanent Magnet Motor With Concentrated Winding

定子 模态分析 芯(光纤) 情态动词 有限元法 振动 控制理论(社会学) 工程类 计算机科学 机械工程 结构工程 物理 声学 材料科学 电信 人工智能 高分子化学 控制(管理)
作者
Hao Yin,Xueyi Zhang,Fangwu Ma,Changzhi Gu,Hui Gao,Yongchao Wang
出处
期刊:IEEE Access [Institute of Electrical and Electronics Engineers]
卷期号:8: 78140-78150 被引量:12
标识
DOI:10.1109/access.2020.2989141
摘要

An accurate prediction of modal characteristics of motor stator is essential in order to design a low vibration motor and to operate it quietly. Scholars have done a lot of research on the modal analysis of stator core and winding. However, there are few papers for the 0th-order mode shape and frequency of the stator system. This paper aims to propose a new stator system analysis model, which can effectively analyze the 0th-order mode and improve the model calculation efficiency. Firstly, the modal of stator core and stator core-winding system were analyzed theoretically. Secondly, four stator system finite element analysis models were established. The modal analysis of the stator core and stator core-winding system were carried out using the four models. The validity and computational efficiency of the four models of the stator core and stator core-winding system were compared. A new stator system analysis model was proposed. Thirdly, the modal tests of the stator core and stator core-winding system were carried out by hammering method, and the validity of the finite element analysis model was verified. Compared with the traditional model, the newly proposed model can analyze the 0th-order mode more effectively and improve the computational efficiency.
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