【作者】 张保强； 陈国平； 郭勤涛；

【Author】 Zhang Baoqiang~1,Chen Guoping~1,Guo Qintao~2 (The State Key Laboratory of Mechanics and Control for Mechanical Structures,Nanjing University of Aeronautics & Astronautics,Nanjing,210016,P.R.China)~1 (Mechanical and Electrical Engineering,Nanjing University of Aeronautics & Astronautics,Nanjing, 210016,P.R.China)~2

【机构】 南京航空航天大学机械结构力学与控制国家重点实验室； 南京航空航天大学机电学院；

【摘要】 用有限元法研究机械传动系统的扭转振动,基于灵敏度分析对模型进行动力学修改,并分析扭转振动频率的概率分布,用以保证系统工作安全。针对某机械传动系统,按照一定的简化原则建立多自由度扭转振动力学模型,应用LANCZOS迭代方法计算固有频率;用灵敏度分析技术选择可调参数对模型进行修改;最后在假设参数分布情况下得到系统不发生扭转振动的可靠度。结果表明,经过模型修改和不确定性分析得到的传动系统设计不会发生扭转振动。更多还原

【Abstract】 Torsional vibration model modification based on sensitivity analysis and uncertainty analysis for mechanical transmission system is performed to ensure satisfy working safety.After the multi-DOF torsional vibration model is established according to a certain simplification principle,the natural frequencies are extracted by using LANCZOS method.Model modification based sensitivity analysis and the reliability of torsional vibration under the assumption that parameters distribution is performed lastly.The results demonstrate that the design of the mechanical transmission system using model modification and uncertainty analysis is successful.更多还原