摘要：谐波齿轮传动与普通的齿轮传动相比，有很多的优势。本文介绍了它的结构特点和工作原理，以及一些应力计算和校核公式。柔性齿轮是谐波齿轮传动的核心零件，柔性齿轮的结构参数对柔性齿轮本身的应力分布有着重要的影响。如果能把柔性齿轮的结构设计好，会延长柔性齿轮的使用寿命和啮合性能。本文将采用有限元的方法对柔性齿轮的结构参数进行分析，就如何提高柔性齿轮的抗变形能力，提高柔性齿轮的疲劳强度作浅表分析。

本文将在柔性齿轮的结构参数修改的方面作出建议，用的型号是LHSG--20--50--C--III型杯形柔性齿轮，也没有什么首创之类的研究价值。无非就是建立柔性齿轮的有限元模型，重复做几个不同参数的柔性齿轮模型的有限元分析。在未来，柔性齿轮的要求越来越高，已经不再局限于它的传动效率的问题了，质体比是很重要的环节。希望本文可以在以后的研究中发挥一定的作用。

关键词：柔性齿轮有限元分析结构参数强度改进

ABSTRACT：Harmonic gear drives have a number of advantages over conventional gear drives. This paper describes its structural characteristics and working principle, as well as some stress calculation and verification formula. The flexible wheel is the core part of the harmonic gear drive. The structural parameters of the flexible wheel have an important  influence  on the stress distribution of the flexible wheel itself. If you can design the structure of the flexible wheel, will extend the life of the flexible wheel and meshing performance. In this paper, the finite element method is used to analyze the structural parameters of the flexible wheel, and how to improve the anti - deformation ability of the flexible wheel and improve the fatigue strength of the flexible wheel.

In this paper, we will make suggestions on the modification of the  structural parameters of the flexible wheel. The model is LHSG - 20 - 50 - C - III cup - shaped flexible wheel, and there is no first kind of research value. Nothing is to establish the finite element model of the flexible wheel, and repeat the finite element analysis of several different parameters of the flexible wheel model. In the future, the requirements of the flexible wheel is getting higher and higher, is no longer limited to its transmission efficiency of the problem, the mass ratio is a very important part. It is hoped that this paper can play a role in the future research.

Keywords ： Flexible wheel Finite  element analysis Structural parameter Strength Improving

目录

第一章绪论 3

1.1谐波齿轮的背景 3

1.2谐波齿轮传动的研究近况 3

1.3柔性齿轮的国内外研究现状 4

1.4研究的目的和意义 6

1.5研究内容 6

第二章 谐波齿轮传动原理及柔性齿轮应力校核计算 7

2.1谐波齿轮传动及原理 7

2.1.1谐波齿轮传动的基本结构及工作原理 7

2.1.2谐波齿轮传动特点 8

2.2柔性齿轮应力分析 8

2.3柔轮齿轮应力计算 10

2.4柔性齿轮疲劳强度校核 19

2.5本章小结 20

第三章