水下Halbach永磁电机噪声特性及减振降噪研究  

Research on noise characteristics and vibration reduction of underwater halbach permanent magnet motor

作　　者：张弛 乔鸣忠[1] 吴波 ZHANG Chi;QIAO Ming-zhong;WU Bo(College of Electrical Engineering,Naval Engineering University,Wuhan 430000,China)

机构地区：[1]海军工程大学电气工程学院,湖北武汉430000

出　　处：《舰船科学技术》2023年第19期137-142,共6页Ship Science and Technology

基　　金：国家自然科学基金资助项目(51877212)。

摘　　要：Halbach结构的永磁电机及泵叶等部件组成的机泵一体化装置作为新型排水设备或水下推进器,具有诸多优点且应用前景广泛。为减少机泵一体化装置中电机运行时产生的噪声,提高舰船声隐身性能,本文通过分析流体中电机噪声特性,使用有限元软件仿真模拟出电机在水中运行时产生的噪声规律,并运用电机热负荷理论提出增加定子轭厚的电机优化方法。研究结果表明,增加电机定子轭厚能有效减少Halbach结构的永磁电机在运行时产生的振动噪声。As a new type of drainage equipment or underwater propeller,the machine pump integrated device composed of permanent magnet motor with Halbach structure and pump blade has many advantages and wide application prospects.In order to reduce the noise generated by the motor running in the machine pump integrated device and improve the acoustic stealth performance of the ship,this paper analyzes the noise characteristics of the motor in the fluid,uses the finite element software to simulate the noise rule generated by the motor running underwater,and uses the motor thermal load theory to propose the motor optimization method of increasing the stator yoke thickness.The research results show that increasing the thickness of the motor stator yoke can effectively reduce the vibration noise generated by the Halbach structure permanent magnet motor during operation.

关 键 词：永磁电机 振动噪声 有限元 电机优化 

分 类 号：TM341[电气工程—电机]