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作者:

Zhang, W (Zhang, W.) (学者:张伟) | Yao, MH (Yao, MH.) (学者:姚明辉) | Zhan, XP (Zhan, XP.)

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摘要:

In this paper, we investigate the Shilnikov type multi-pulse chaotic dynamics for a rotor-active magnetic bearings (AMB) system with 8-pole legs and the time-varying stiffness. The stiffness in the AMB is considered as the time-varying in a periodic form. The dimensionless equation of motion for the rotor-AMB system with the time-varying stiffness in the horizontal and vertical directions is a two-degree-of-freedom nonlinear system with quadratic and cubic nonlinearities and parametric excitation. The asymptotic perturbation method is used to obtain the averaged equations in the case of primary parametric resonance and 1/2 subharmonic resonance. It is found from the numerical results that there are the phenomena of the Shilnikov type multi-pulse chaotic motions for the rotor-AMB system. A new jumping phenomenon is discovered in the rotor-AMB system with the time-varying stiffness. (c) 2005 Elsevier Ltd. All rights reserved.

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作者机构:

  • [ 1 ] Beijing Univ Technol, Coll Mech Engn, Beijing 100022, Peoples R China

通讯作者信息:

  • 张伟

    [Zhang, W]Beijing Univ Technol, Coll Mech Engn, Beijing 100022, Peoples R China

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来源 :

CHAOS SOLITONS & FRACTALS

ISSN: 0960-0779

年份: 2006

期: 1

卷: 27

页码: 175-186

7 . 8 0 0

JCR@2022

ESI学科: PHYSICS;

JCR分区:1

被引次数:

WoS核心集被引频次: 67

SCOPUS被引频次: 73

ESI高被引论文在榜: 0 展开所有

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