新型Hy-Vo齿形链的刚柔耦合接触动力学分析及试验研究

发布时间：2018-04-05 17:02

本文选题：Hy-Vo齿形链　切入点：刚柔耦合　出处：《吉林大学》2012年硕士论文

【摘要】：新型Hy-Vo齿形链作为机械传动领域中的一种复杂高端产品系列，是在跨越了常规链传动技术的基础上所形成的学科与行业的前沿研究领域，特别是在高速、重载、低噪声、大中心距的工况下，由于具有变节距和内外复合啮合的双重效应，因而其传动性能优于同步带传动、齿轮传动以及滚子链传动，已成为众多主机厂家首选动力传动形式之一。本文在国家高技术研究发展计划（863计划）《基于复杂多元变异的Hy-Vo链数字化设计方法研究及平台开发》项目（2009AA04Z109）的支持下，针对某款新型Hy-Vo齿形链系统进行刚柔耦合接触动力学的深入研究，并开展噪声特性和磨损特性的试验研究。论文首先着重说明了新型Hy-Vo齿形链传动的应用前景及研究意义，指出了目前齿形链研究存在的若干问题，综述了齿形链传动方向的国内外研究现状，介绍了多体动力学及刚柔耦合动力学的发展历史及现状和相关理论及算法。本文利用多体动力学和现代接触动力学方法，建立了新型Hy-Vo齿形链传动的接触动力学仿真模型，真实地模拟分析了新型Hy-Vo齿形链在传动过程中各链板与链轮、链板与销轴、销轴与销轴之间的接触力的变化规律。利用刚柔耦合动力学技术，分析了柔性链板和柔性销轴的动态接触应力变化规律，找到了内外复合啮合机制链板的齿廓内侧和齿廓外侧分别与链轮啮合的接触区域随时间变化的规律，进而分析了链板齿廓内侧和齿廓外侧与链轮啮合的衔接过程。论文在自主开发的自动变速、自动加载的链条噪声测试试验台上进行了Hy-Vo齿形链传动噪声试验。利用AWA6290A实时噪声分析仪分别研究了不同转速条件下链传动的噪声频谱特性。在封闭力流式高速磨损试验台上进行了链条磨损试验，得出了链条的磨损伸长量及磨损伸长率曲线，观察并分析了链板及销轴表面的磨损形貌。本文中的刚柔耦合接触动力学分析方法对其他链传动的接触分析、齿轮副的接触分析、链式无级变速器的分析具有重要的借鉴意义和参考价值。论文中研究的新型Hy-Vo齿形链目前已经应用到汽轮机、高精磨床、汽车变速箱等机器设备的动力传动装置上。本文的研究成果具有重要的学术价值与工程实用意义。
[Abstract]:As a complex and high-end product series in the field of mechanical transmission, a new type of Hy-Vo tooth chain is a frontier research field of disciplines and industries formed on the basis of conventional chain transmission technology, especially in high speed, heavy load and low noise.Under the condition of large center distance, because of the double effect of variable pitch and internal and external composite meshing, its transmission performance is superior to synchronous belt transmission, gear transmission and roller chain transmission, which has become one of the preferred power transmission forms for many host manufacturers.This paper is supported by the National High Technology Research and Development Program, "Research and platform Development of Hy-Vo chain digitized Design based on complex Multivariate variation" project (2009AA04Z109).The rigid-flexible coupling contact dynamics of a new type of Hy-Vo toothed chain system is studied, and the noise and wear characteristics of the system are studied experimentally.In this paper, the application prospect and research significance of new type Hy-Vo tooth chain drive are described, and some problems in the research of tooth chain are pointed out, and the research status of tooth chain drive direction at home and abroad is summarized.In this paper, the development history and present situation of multibody dynamics and rigid-flexible coupling dynamics are introduced, and the relevant theories and algorithms are also introduced.In this paper, the contact dynamics simulation model of a new type of Hy-Vo toothed chain transmission is established by means of multi-body dynamics and modern contact dynamics, and the real simulation analysis of each chain plate and sprocket, chain plate and pin shaft of the new Hy-Vo tooth chain in the course of transmission is carried out.The change of contact force between pin shaft and pin shaft.The dynamic contact stress changes of flexible chain plate and flexible pin shaft are analyzed by using rigid-flexible coupling dynamics technique.The relationship between the inner tooth profile and the outer tooth profile of the chain plate and the contact region between the inner tooth profile and the sprocket are found, and the connection process between the inner tooth profile and the outer tooth profile of the chain plate and the sprocket engagement is analyzed.In this paper, the Hy-Vo tooth chain transmission noise test is carried out on the chain noise test rig with automatic speed change and automatic loading developed by ourselves.The noise spectrum characteristics of chain drive under different rotational speeds were studied by AWA6290A real-time noise analyzer.Chain wear tests were carried out on a closed force flow high speed wear test rig. The wear elongation and wear elongation curves of the chain were obtained. The wear morphology of the chain plate and the surface of the pin shaft was observed and analyzed.The rigid-flexible coupling contact dynamics analysis method in this paper has important reference significance and reference value for the contact analysis of other chain transmission, the contact analysis of gear pair and the analysis of chain stepless transmission.The new Hy-Vo tooth chain studied in this paper has been applied to the power transmission of steam turbine, high precision grinder, automobile gearbox and so on.The research results of this paper have important academic value and engineering practical significance.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.45

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