Research on dynamic characteristics of motor vibration isolation system through mechanical impedance method

1st International Conference on Frontiers of Materials Synthesis and Processing

材料科学;化学

Zhao, Xingqian^1,2 ; Xu, Wei^1,2 ; Shuai, Changgeng^1,2 ; Hu, Zechao^1,2

Institute of Noise and Vibration, Naval University of Engineering, Wuhan, China^1

National Key Laboratory of Ship Vibration and Noise, Wuhan, China^2

关键词: Developed model;    Displacement amplitudes;    Dynamic characteristics;    Isolation systems;    Mechanical impedances;    Reaction forces;    Vibration isolation systems;    Vibration properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/274/1/012051/pdf
DOI  :  10.1088/1757-899X/274/1/012051

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A mechanical impedance model of a coupled motor-shaft-bearing system has been developed to predict the dynamic characteristics and partially validated by comparing the computing results with finite element method (FEM), including the comparison of displacement amplitude in x and z directions at the two ends of the flexible coupling, the comparison of normalized vertical reaction force in z direction at bearing pedestals. The results demonstrate that the developed model can precisely predict the dynamic characteristics and the main advantage of such a method is that it can clearly illustrate the vibration property of the motor subsystem, which plays an important role in the isolation system design.