电动机轴承转子多频激励系统主共振分析  

Primary Resonance Analysis of the Bearing Rotor Multi-frequencies Excitation of a Motor

作　　者：李自强[1] 

机构地区：[1]唐山职业技术学院唐山市结构与振动工程实验室,河北唐山063000

出　　处：《装备制造技术》2017年第8期103-106,共4页Equipment Manufacturing Technology

基　　金：河北省教育厅指导项目(编号:zc2016070);河北省自然科学基金项目(编号:A2009000997)资助

摘　　要：以三相异步电机轴承转子系统为研究对象,考虑转子在偏心力、轴承反力和不平衡电磁力影响。应用牛顿定律建立了电机轴承转子系统非线性振动方程。应用平均法,解析系统主共振的一次近似解和对应的定常解,并进行数值计算。分析转子偏心距、转子刚度和电磁参数等对主共振幅频响应曲线的影响。Changing a bearing rotor system of a motor as object, consider eccentric force,bearing reaction and unbalanced magnetic pull, applying newton＇s law the nonlinear vibration equation of the bearing rotor system of a motor is established. By means of the averaging method, the first approximation solutions and corresponding to stationary solutions of the primary vibration of the system are obtained, and the numerical calculation is carried out. The effect of the offset and the rigidity or the electromagnetic parameter on the response curves of the primary resonance of the system.

关 键 词：轴承转子 电磁力 非线性振动 主共振 平均法 

分 类 号：O322[理学—一般力学与力学基础] TH133[理学—力学]