基于ANSYS Workbench的电机轴系模态分析
高丰,王福忠,韩素敏
(河南理工大学 电气工程与自动化学院,河南 焦作 454000)
摘要:提升机电机轴的主要作用是将电机的输出动力通过链传动传递至滚筒,为滚筒作业提供动力。不仅要符合强度、刚度等力学条件, 还需要满足一定的动态性能要求。本文针对7800 kW同步电机主轴,通过软件SolidWorks进行建模,并利用ANSYS对其进行有限元模态分析和谐响应分析,得到了该轴前8阶模态的固有频率、振型及扭转角度分布,分析结果可以作为电机轴优化设计的参考, 通过合理的优化也避免在运行过程中与激励频率发生共振,有利于提高电机轴的可靠性与寿命。
关键词:电机轴系;有限元建模;模态分析;谐响应分析 
中图分类号:TP391 文献标志码:A doi:10.3969/j.issn.1006-0316.2021.06.010
文章编号:1006-0316 (2021) 06-0064-06
Model Analysis of Hoist Motor Shafting Based on ANSYS Workbench
GAO Feng,WANG Fuzhong,HAN Sumin
( School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China )
Abstract:The main function of the hoist motor shaft is to transmit the output power of the motor to the drum through the chain drive to provide power for roller operation. It is supposed to not only meet the mechanical conditions such as strength and stiffness, but also some certain dynamic performance requirements. In this paper, the 7800 kW synchronous motor spindle is modeled by SolidWorks, and the modal analysis and  the harmonic response analysis are carried out by ANSYS, and the natural frequency, mode shape and torsion angle distribution of the first eight modes of the spindle are obtained. The analysis results provide a reference for the optimal design of the motor shaft, and the resonance with excitation frequency during the operation can be avoided through reasonable optimization, which helps to improve the reliability and extend the life of the motor shaft.
Key words:motor shafting;finite element modeling;modal analysis;harmonic response analysis
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收稿日期:2020-12-17
基金项目:国家重点研发计划专项(2016YFC0600906);河南省重点研发与推广专项(科技攻关)(202102210094)
作者简介:高丰(1996-),男,河北衡水人,硕士研究生,主要研究方向为双同步电机系统轴系的故障诊断,E-mail:gao15130873583@163.com。
 

 

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