东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (2): 250-253.DOI: -

• 论著 • 上一篇    下一篇

多跨故障转子系统动态特性有限元仿真研究

李小彭;宫照民;刘杰;闻邦椿;   

  1. 东北大学机械工程与自动化学院;东北大学机械工程与自动化学院;东北大学机械工程与自动化学院;东北大学机械工程与自动化学院 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2008-02-15 发布日期:2013-06-22
  • 通讯作者: Li, X.-P.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(50535010;10572036)

Simulation of dynamic characteristics of faulty multi-span rotor system through FEA

Li, Xiao-Peng (1); Gong, Zhao-Min (1); Liu, Jie (1); Wen, Bang-Chun (1)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2008-02-15 Published:2013-06-22
  • Contact: Li, X.-P.
  • About author:-
  • Supported by:
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摘要： 对膜片联接的齿轮传动多跨转子系统进行了故障动态特性仿真研究.利用ANSYS有限元分析软件进行建模、仿真,根据在裂纹和碰摩故障工况下单跨转子与整个转子系统的固有频率在弯扭耦合振动下的变化情况,研究了系统的非线性动态特性和响应,以及膜片联轴器与齿轮对转子系统的影响.研究结果表明,此种情况下发生的故障对故障跨的影响比其余跨大;膜片联轴器和齿轮能够削弱或阻隔弯曲振动及裂纹故障对系统的不利影响,有助于故障诊断的定位与维修,也为产品设计提供参考.

关键词: 裂纹, 碰摩, 膜片联轴器, 齿轮传动, 动态特性, 有限元法

Abstract: The vibration characteristics of faulty multi-span geared rotor system with membrane coupling was modeled and simulated through the FEA (finite element analysis) software ANSYS. The nonlinear dynamic characteristics and responses of the rotor system, and the influences of membrane coupling and gearing on the rotor system were studied according to the change in inherent frequency due to bending-torsioning coupled vibration in the single-span rotor and the whole rotor system when cracks and rubbing fault happen. The results indicated that in such a case the influence on a faulty span is greater than on rests, and the adverse influences of bending vibration and cracks on the rotor system can be weakened or retarded by membrane coupling and gears. What were revealed is beneficial to the fault diagnosis and system maintenance and available to provide reference for designing products.

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