Analysis on unbalance vibration and compensation for maglev flywheel

Article type: Research Article

Authors: Gao, Hui^* | Song, Wei

Affiliations: School of Automation, Nanjing University of Posts and Telecommunications, NanJing, Jiangsu, China

Correspondence: [*] Corresponding author: Hui Gao, School of Automation, Nanjing University of Posts and Telecommunications, 210023, NanJing, Jiangsu, China. E-mail:gaoh@njupt.edu.cn

Abstract: The vibration matrix equation of a maglev flywheel because of existing unbalance force is established in this paper to study the unbalance vibration problem. The generalized dynamic stiffness is introduced to obtain the analytical solutions for the vibration equation. The unbalance vibration kinds and corresponding compensation strategies are analyzed according to the analytical solutions, including free vibration and unbalance vibration. To verify the correctness of the analysis result, a simulation model is created of the maglev flywheel system, and the experiment results are given when the flywheel at different rotational frequencies. The simulation and experiment results show that the analytical solutions and corresponding vibration compensation analyses are effective.

Keywords: Maglev flywheel, mechanical model, unbalance vibration, generalized dynamic stiffness, unbalance compensation

DOI: 10.3233/JAE-150106

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 50, no. 1, pp. 177-187, 2016