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International Journal of Rotating Machinery
Volume 2013, Article ID 512674, 11 pages
Research Article

Theoretical Vibration Analysis on 600Wh Energy Storage Flywheel Rotor—Active Magnetic Bearing System

1College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China
2Engineering Training Center, Harbin Engineering University, Harbin 150001, China

Received 24 January 2013; Revised 16 April 2013; Accepted 16 April 2013

Academic Editor: Zuohua Huang

Copyright © 2013 Jing-na Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper shows a theoretical vibration analysis regarding the controller’s parameters and the gyroscopic effect, based on a simplified rotordynamic model. Combined with 600 Wh energy storage flywheel rotor system mathematical model, the Campbell diagram of the rotor system was obtained by the calculation of the whirl frequency under different parameters of the controller in MATLAB to analyze the effect of the controller parameter on the whirl frequency and to limit the operating speed and acceleration or deceleration of the rotor. The result of the analysis can be used to set the support position of the rotor system, limit the ratio of transverse moment of inertia and the polar moment of inertia, and direct the flywheel prototype future design. The presented simplified rotordynamic model can also be applied to rotating machines.