基于不同啮合刚度计算模型的直齿圆柱齿轮传动系统动力学特性研究  

Study on dynamic characteristics of spur gear transmission system based on different calculation models of time-varying mesh stiffness

作　　者：蒋建政 陈再刚[1] 翟婉明[1] 潘成 JIANG JianZheng;CHEN ZaiGang;ZHAI WanMing;PAN Cheng(State Key Laboratory of Traction Power,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学牵引动力国家重点实验室,成都610031

出　　处：《中国科学：技术科学》2018年第8期863-871,共9页Scientia Sinica(Technologica)

基　　金：国家自然科学基金(批准号:51775453;51735012);机械传动国家重点实验室开放基金(编号:SKLMT-KFKT-201705)资助项目

摘　　要：针对直齿圆柱齿轮传动系统,建立了3种齿轮传动系统动力学仿真计算模型,即:基于"切片式"齿轮啮合刚度解析计算方法的齿轮传动系统动力学模型、基于SIMPACK 225号力元建立的齿轮传动系统动力学模型和基于有限元方法建立的齿轮传动系统动力学模型,对比分析了3种模型在高速和低速工况下计算获得的啮合力和动态传递误差.研究结果显示:高、低速工况下,3种模型的计算结果吻合良好.基于"切片式"齿轮啮合刚度解析计算方法的齿轮传动系统动力学模型计算获得的动态传递误差与基于有限元法的动力学模型计算结果更加接近.因此,综合考虑计算精度和计算效率,基于"切片式"齿轮时变啮合刚度解析计算方法可更好地应用于齿轮传动系统动态特性分析.Three kinds of gear mesh stiffness calculation models are developed for spur gear transmission system in this paper, namely, the dynamic model of gear transmission system based on the analytical mesh stiffness calculation by ＂slice method＂, the gear transmission system dynamic model based on SIMPACK 225 force element, and the finite element dynamic model of gear transmission system. Based on these dynamic models, the mesh force and dynamic transmission error for the high speed and the low speed operation conditions are analyzed, respectively. The research results indicate that the results obtained by the three dynamic models are in good agreement with each other for both low and high speed operation conditions. The dynamic transmission error calculated by gear transmission system dynamic model based on mesh stiffness calculation with ＂slice method＂ are much closer to the results obtained by the finite element dynamic model. Consequently, considering the computation accuracy and computation time, the gear transmission system dynamic model based on the mesh stiffness calculated by ＂slice method＂ could be better applied to analyze the dynamic performance of gear transmission system considering the trade off between the computational accuracy and the efficiency.

关 键 词：势能法 切片式 时变啮合刚度 齿轮系统动力学 

分 类 号：TH132.41[机械工程—机械制造及自动化]