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Nonlinear modeling and simulation of flywheel energy storage rotor system with looseness and rub-impact coupling hitch

  • Zhu Youfeng EMAIL logo , Liu Xinhua , Wang Qiang , Wang Zibo and Zang Hongyu
Published/Copyright: February 23, 2021

Abstract

Flywheel energy storage system as a new energy source is widely studied. This paper establishes a dynamic model of a single disk looseness and rub-impact coupling hitch flywheel energy storage rotor system firstly. Then dynamic differential equations of the system under the condition of nonlinear oil film force of the sliding bearing are given. Runge–Kutta method is used to solve the simplified dimensionless differential equations. The effect of variable parameters such as disk eccentricity, stator stiffness and bearing support mass on the system are analyzed. With the increase of eccentricity, the range of period-three motion is significantly reduced and the range of chaotic motion begins to appear in the bifurcation diagram. Meanwhile, stiffness of the stator and mass of the bearing support have a significant influence on the flywheel energy storage rotor system.


Corresponding author: Zhu Youfeng, College of Transportation, Shandong University of Science and Technology, Qingdao 266590, China, E-mail:

Award Identifier / Grant number: 11272190

Acknowledgments

This work was financially supported by the National Science Foundation (11272190), the Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents (2017RCJJ053) and Vibration Suppression of Vehicle Flywheel Battery in Complex Environment (2019GGX103024).

  1. Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This work was financially supported by the National Science Foundation (11272190), the Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents (2017RCJJ053) and Vibration Suppression of Vehicle Flywheel Battery in Complex Environment (2019GGX103024).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2019-04-10
Accepted: 2020-09-25
Published Online: 2021-02-23
Published in Print: 2022-02-23

© 2020 Walter de Gruyter GmbH, Berlin/Boston

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