Nonlinear Analysis of Rotor-AMB System with Current Saturation Effect

Authors

  • Xiaoshen Zhang 1 Institute of Nuclear and New Energy Technology 2 Collaborative Innovation Center of Advanced Nuclear Energy Technology 3 Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University, Beijing, 100084, China
  • Tianpeng Fan 1 Institute of Nuclear and New Energy Technology 2 Collaborative Innovation Center of Advanced Nuclear Energy Technology 3 Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University, Beijing, 100084, China
  • Zhe Sun 1 Institute of Nuclear and New Energy Technology 2 Collaborative Innovation Center of Advanced Nuclear Energy Technology 3 Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University, Beijing, 100084, China
  • Lei Zhao 1 Institute of Nuclear and New Energy Technology 2 Collaborative Innovation Center of Advanced Nuclear Energy Technology 3 Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University, Beijing, 100084, China
  • Xunshi Yan 1 Institute of Nuclear and New Energy Technology 2 Collaborative Innovation Center of Advanced Nuclear Energy Technology 3 Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University, Beijing, 100084, China
  • Jingjing Zhao 1 Institute of Nuclear and New Energy Technology 2 Collaborative Innovation Center of Advanced Nuclear Energy Technology 3 Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University, Beijing, 100084, China
  • Zhengang Shi 1 Institute of Nuclear and New Energy Technology 2 Collaborative Innovation Center of Advanced Nuclear Energy Technology 3 Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University, Beijing, 100084, China

Keywords:

Current saturation, nonlinear analysis, numerical integration, pitchfork bifurcation

Abstract

The analysis on nonlinear dynamics of a rotor-AMB system is conducted in this paper. The nonlinearity of electromagnetic force and current saturation effect are taken into account. The nonlinear model of the rotor-AMB system is built and the nonlinear dynamic behaviors of the system in both resonance region and non-resonance region are investigated through numerical integration method. This paper shows that the rotor-AMB system can exhibit some complicated nonlinear dynamic behaviors, such as soft spring characteristic of the amplitude-frequency response curve, the jump phenomenon, and pitchfork bifurcation. And the effects of exciting force and current saturation on these nonlinear dynamic behaviors of the system are discussed.

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Published

2019-04-01

How to Cite

[1]
Xiaoshen Zhang, “Nonlinear Analysis of Rotor-AMB System with Current Saturation Effect”, ACES Journal, vol. 34, no. 04, pp. 557–566, Apr. 2019.

Issue

2019: Vol 34 Iss 4

Section

Articles