scholarly journals Vibration Analysis of an Active Magnetic Bearing-Backup Bearing-Rotor System (Vibration Characteristics for the Various Fault Patterns of an Active Magnetic Bearing)

2003 ◽  
Vol 69 (683) ◽  
pp. 1741-1748 ◽  
Author(s):  
Yukio ISHIDA ◽  
Tsuyoshi INOUE ◽  
Masaki KAKITANI
Keyword(s):  
Vibration Analysis ◽  
Magnetic Bearing ◽  
Vibration Characteristics ◽  
Rotor System ◽  
Active Magnetic Bearing ◽  
System Vibration

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

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Jing-na Liu ◽  
Zheng-yi Ren ◽  
Shan-wei Wu ◽  
Yin-long Tang
Keyword(s):  
Energy Storage ◽  
Vibration Analysis ◽  
Magnetic Bearing ◽  
Rotor System ◽  
Moment Of Inertia ◽  
Active Magnetic Bearing ◽  
Campbell Diagram ◽  
Future Design ◽  
Polar Moment ◽  
Flywheel Rotor

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.

Analysis of supercritical pitchfork bifurcation in active magnetic bearing-rotor system with current saturation

2021 ◽  
Vol 104 (1) ◽  
pp. 103-123
Author(s):  
Xiaoshen Zhang ◽  
Zhe Sun ◽  
Lei Zhao ◽  
Xunshi Yan ◽  
Jingjing Zhao ◽  
...  
Keyword(s):  
Pitchfork Bifurcation ◽  
Magnetic Bearing ◽  
Rotor System ◽  
Active Magnetic Bearing ◽  
Current Saturation
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