基于模态参与因子的无轴承开关磁阻电机振动分析与抑制  

Vibration Analysis of Bearingless Switched Reluctance Motor Based on Modal Participation Factor

作　　者：朱伟明 杨艳 刘泽远 刘程子 ZHU Weiming;YANG Yan;LIU Zeyuan;LIU Chengzi(College of Automation&College of Artificial,Nanjing University of Posts and Telecommunications,Nanjing 210046,China)

机构地区：[1]南京邮电大学自动化学院、人工智能学院,南京210046

出　　处：《微电机》2022年第10期8-15,共8页Micromotors

基　　金：国家自然科学基金项目(51607096);江苏省自然基金(BK20160896)。

摘　　要：本文采用模态叠加法求解了12/8极单绕组宽转子齿无轴承开关磁阻电机(Bearingless Switched Reluctance Motor with Wider Rotor Teeth,BSRMWR)在不对称径向磁拉力作为激励力下的振动位移响应,针对BSRMWR振动大的问题,研究了一种基于模态参与因子的壳体结构优化方法来抑制其振动。通过对模态参与因子的分析,可以确定各阶模态对BSRMWR振动响应的贡献量,基于此对BSRMWR壳体进行加筋优化处理。在加强筋均匀分布的情况下,保持总用量一定,对壳体加强筋的厚度进行了分析,对比了单向加强筋和双向加强筋模型下的振动位移响应,分析结果表明:在BSRMWR壳体合理添加加强筋对其振动响应有显著抑制作用。In this paper,the modal superposition method is used to solve the vibration displacement of a 12/8-pole single-winding wide rotor tooth bearingless switched reluctance motor(Bearingless Switched Reluctance Motor with Wider Rotor Teeth,referred to as BSRMWR) under asymmetric radial magnetic tension as the excitation force.In response,for the problem of large vibration of BSRMWR,a shell structure optimization method based on modal participation factors was studied to suppress its vibration.Through the analysis of the modal participation factor,the contribution of each mode to the vibration response of BSRMWR can be determined,and the reinforcement of the BSRMWR shell can be optimized based on this.In the case of stiffeners evenly distributed,keeping the total amount constant,the thickness of the shell stiffeners was analyzed,and the vibration displacement response under the unidirectional stiffener and bidirectional stiffener models was compared.The analysis results show that:in the BSRMWR shell reasonable addition of stiffeners can significantly suppress its vibration response.

关 键 词：BSRMWR 径向电磁力 振动特性 模态参与因子 加强筋 

分 类 号：TM352[电气工程—电机]