摘要
基于刚-柔耦合多体接触动力学理论,对采煤机截割部传动系统进行了研究,给出了其模型参数的确定方法。在Recur Dyn软件环境中建立了截割部传动系统刚柔耦合多体接触动力学模型,并施加MATLAB计算出的基于实际工况的载荷。在仿真环境下直观动态地描述了齿轮啮合接触过程,计算出了各级齿轮的动态等效应力,并根据仿真结果对齿轮进行了优化。解决了大型机械传动机构进行柔性接触仿真的难题,增加了虚拟样机技术研究的可靠性,揭示了齿轮传动系统的刚度激励与啮合冲击激励引起响应的周期性波动现象。
To study transmission system of a coal winning machine＇s cutting part,the theory of rigid-flex coupled multi-body system dynamics was applied,a method for determining its model parameters was presented. The rigid-flexible coupled multi-body contact dynamic model for the transmission system was built in Recur Dyn software environment and MATLAB was employed to calculate the loads under the actual conditions. In order to optimize the simulation results of the gear system,the gear meshing process was described intuitively and dynamically and the dynamic equivalent stresses of gear pairs were calculated under the simulation environment. The problems of a large mechanical transmission mechanism＇s flexible contact simulation were solved and the reliability of virtual prototype technology was improved. The periodic oscillation phenomen a of the responses of the gear transmission system to the stiffness excitation and meshing impact excitation were revealed.
出处
《振动与冲击》
EI
CSCD
北大核心
2014年第23期106-110,共5页
Journal of Vibration and Shock
