Static and dynamic vibration analyses of switched reluctance motors including bearings, housing, rotor dynamics, and applied loads
Static and dynamic vibration analyses of switched reluctance motors including bearings, housing, rotor dynamics, and applied loads
复制标题
DOI：
10.1109/tmag.2004.828034
复制
发表时间：
2004-08
影响因子：
2.1
通讯作者：
K. Srinivas;R. Arumugam
中科院分区：
文献类型：
--
作者：
K. Srinivas;R. Arumugam
本文提出了一个彻底的数值研究，在电动机的振动分析，特别是应用开关磁阻电机（SRM），使用三维有限元分析（3-D FEA）的方法。它涵盖了主要的振动源：机械，磁和应用负载。现提出以下分析。1)包括定子和转子结构、轴、端罩、轴承和外壳的三维模态分析。2)转子的不平衡转子动力学分析，这对于确定转子质量的偏心率以确保转子和壳体的振动在可接受的范围内是重要的。3)谐波分析，用于识别在加速过程中应快速跳过的产生高振动和噪音的速度范围。4)不同负载条件下的应力分析（负载测试的模拟），以预测轴和转子的变形。除了经常报道的SR电机定子的二维模态分析，这些三维振动分析是必不可少的检查作为一个整体的SR电机的振动。
This paper presents a thorough numerical study of vibration analysis in electric motors, with particular application to switched reluctance motors (SRMs), using three-dimensional finite-element analysis (3-D FEA) methodology. It covers the major vibration sources: mechanical, magnetic, and applied load. The following analyses are presented. 1) A 3-D modal analysis including stator and rotor structures, shaft, end shields, bearings, and housing. 2) An unbalanced rotor dynamics analysis of the rotor, which is important for deciding on the eccentricity of the rotor mass to ensure that the vibration of rotor and housing is within acceptable limits. 3) A harmonic analysis to identify the range of speeds producing high vibration and noise that should be skipped over quickly during acceleration. 4) A stress analysis under different loading conditions (a simulation of load testing) to predict the deformation of the shaft and rotor. Apart from frequently reported modal analysis on the stator of SRMs in two dimensions, these 3-D vibration analyses are essential to examine the vibration in SRMs as a whole.