中国机械工程 ›› 2016, Vol. 27 ›› Issue (03): 323-327.

• 机械基础工程 • 上一篇    下一篇

RV减速器扭转振动的固有特性及灵敏度分析

刘柏希;王文军;聂松辉   

  1. 湘潭大学,湘潭,411105
  • 出版日期:2016-02-10 发布日期:2016-02-03
  • 基金资助:
    湖南省自然科学湘潭联合基金资助项目(14JJ5028);湖南省教育厅科学研究优秀青年项目(13B115) 

Analyses of Natural Characteristics and Sensitivity for Torsional Vibration of RV Reducer

Liu Baixi;Wang Wenjun;Nie Songhui   

  1. Xiangtan University,Xiangtan,Hunan,411105
  • Online:2016-02-10 Published:2016-02-03
  • Supported by:

摘要:

以RV减速器为研究对象,综合考虑系统刚度和摆线轮偏心角度对扭转振动特性的影响,采用集中参数法,建立了该系统13个自由度的修正扭转动力学模型。通过求解自由振动方程得到系统固有频率及主振型,分析了摆线轮偏心角度对系统固有频率的影响。利用偏导数法分析了系统固有频率对转动惯量和刚度的影响。研究结果表明,轴承刚度为系统固有频率的关键影响因素。

关键词: RV减速器, 扭转振动, 固有特性, 灵敏度分析

Abstract:

Taking the RV reducer as the research object, and considering the influences of the system stiffness and the eccentric angle of cycloid gear on torsional vibration characteristics, a 13 DOF modified torsional dynamics model was established by lumped-parameter method. The impacts of cycloid gear eccentric angle on the natural frequency were analyzed by calculating the natural frequency and corresponding modal shapes of the system. Using the partial derivative method, the sensitivity of natural frequency to moment of inertia and stiffness was calculated. The results show that the key factor influencing the natural frequency is the bearing stiffness.

Key words: rotate vector(RV) reducer, torsional vibration, natural characteristics, sensitivity analysis

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