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电磁支撑控制非线性刚度转子系统振幅突变机理分析

潘勇 程敏 刘保国

潘勇, 程敏, 刘保国. 电磁支撑控制非线性刚度转子系统振幅突变机理分析[J]. 机械科学与技术, 2018, 37(7): 1041-1047. doi: 10.13433/j.cnki.1003-8728.2018.0707
引用本文: 潘勇, 程敏, 刘保国. 电磁支撑控制非线性刚度转子系统振幅突变机理分析[J]. 机械科学与技术, 2018, 37(7): 1041-1047. doi: 10.13433/j.cnki.1003-8728.2018.0707
Pan Yong, Cheng Min, Liu Baoguo. Mechanism Analysis of Amplitude Catastrophe Controlled by Electromagnetic Support of a Rotor System with Nonlinear Stiffness[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(7): 1041-1047. doi: 10.13433/j.cnki.1003-8728.2018.0707
Citation: Pan Yong, Cheng Min, Liu Baoguo. Mechanism Analysis of Amplitude Catastrophe Controlled by Electromagnetic Support of a Rotor System with Nonlinear Stiffness[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(7): 1041-1047. doi: 10.13433/j.cnki.1003-8728.2018.0707

电磁支撑控制非线性刚度转子系统振幅突变机理分析

doi: 10.13433/j.cnki.1003-8728.2018.0707
基金项目: 

国家自然科学基金-河南联合基金重点项目(U1604254)与河南省重点科技攻关项目(152102210366)资助

详细信息
    作者简介:

    潘勇(1985-),讲师,硕士,研究方向为转子动力学,panyonghappy2004@163.com

    通讯作者:

    程敏,讲师,博士研究生,chengminhappy2006@163.com

Mechanism Analysis of Amplitude Catastrophe Controlled by Electromagnetic Support of a Rotor System with Nonlinear Stiffness

  • 摘要: 为控制非线性刚度转子系统振幅突变,将具有非线性变刚度功能的电磁支撑引入转子系统,建立了转子系统动力学模型。利用平均法导出了转子系统主共振频率响应方程。基于突变理论和奇点稳定性理论分别得到了转子系统的振幅突变区域和不稳定区域。借助数值仿真算例分析了非线性电磁支撑刚度参数对突变区域、不稳定区域以及振幅特性曲线的影响。结果表明:当激振力幅值在控制后的渐变区域内取值时,振幅突变得到完全控制;当激振力幅值在控制后的突变区域内取值时,振幅特性曲线仍存在多值特征,振幅突变仅仅得到部分控制。
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出版历程
  • 收稿日期:  2017-07-07
  • 刊出日期:  2018-07-05

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