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。
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.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2016年第3期323-327,共5页
China Mechanical Engineering
基金
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)
关键词
RV减速器
扭转振动
固有特性
灵敏度分析
rotate vector （RV） reducer
torsional vibration
natural characteristics
sensitivity analysis
