不同支撑和转子装配方式的高速电机临界转速分析

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (8) : 24-30.

论文

不同支撑和转子装配方式的高速电机临界转速分析

田野，孙岩桦，杨利花，虞烈

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Study on Critical Speed of High Speed Motor with Different Supports and Rotor Assembly

TIAN Ye, SUN Yanhua, YANG Lihua, YU Lie

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摘要

用有限元方法研究了滚动轴承支撑的整体式转子和电磁轴承支撑的焊接式转子这两种高速电机轴承-转子系统的临界转速。在分析两种系统的支撑刚度特性及转子结构装配关系的基础上建立了有限元模型，计算出系统的临界转速并对不同支撑和装配方式对轴承-转子系统临界转速的影响进行了讨论，最后通过锤击实验和整机实验全面验证结果的有效性，为高速电机轴系设计和动力学分析提供了参考。*

Abstract

In this paper, critical speeds of types of rotor, integral rotor supported by rolling bearings and welded rotor supported by magnetic bearings, for high speed motor are investigated. The finite element models are built based on analyses of the different supporting stiffness and the different rotor assembly. The influences of different supports and rotor assembly on bearing-rotor system are discussed. At last, the experimental results from the impact experiments of the free rotor and the prototype motor agree well with the calculation results, which show the validity of the FEM models used in the analysis. The results of this paper are very useful for design and rotor-dynamic analysis of high speed rotors.

导出引用

田野;孙岩桦;杨利花;虞烈. 不同支撑和转子装配方式的高速电机临界转速分析[J]. 振动与冲击, 2013, 32(8): 24-30

TIAN Ye;SUN Yanhua;YANG Lihua;YU Lie. Study on Critical Speed of High Speed Motor with Different Supports and Rotor Assembly[J]. Journal of Vibration and Shock, 2013, 32(8): 24-30