减速器的参数化设计及仿真分析

发布时间：2018-08-30 11:24

【摘要】：随着计算机技术的飞速发展,CAD在机械制造行业应用的越来越广泛。但是CAD软件的通用性难以满足各种具体产品设计的需要,根据不同的实际需求,以通用CAD软件为基础,CAD二次开发技术已成为现代产品设计的重要组成部分。虚拟样机技术作为新的CAE技术方法,能够在物理样机制造出来之前,通过建立虚拟样机模型方便地修改产品的设计,不但可以缩短开发周期,而且设计质量和效率得到了提高。本论文以参数化设计和虚拟样机技术相结合的设计手段来进行减速器的零部件设计,在减速器的参数设计以及仿真分析方面,主要研究的内容包括:首先,以功能强大的三维软件UG作为开发平台,深入研究UG二次开发方法,利用UG二次开发工具UG/Open Grip实现了渐开线直齿轮的三维参数化造型,利用UG/Open API、VC++等技术开发设计了渐开线直齿轮齿轮参数化设计系统。在完成渐开线直齿轮的三维模型后,可以创建其它零部件三维模型,并完成减速器的虚拟装配,对齿轮传动系统进行干涉分析。然后,把UG中建立的减速器的三维模型以Parasolid格式的数据导入到ADAMS中。讨论ADAMS虚拟样机的基本理论,添加各种约束、接触力、驱动力矩和负载,完成虚拟样机模型的建立。最后,设置减速器的虚拟样机模型仿真的条件,对虚拟样机模型进行动力学仿真分析,分别得出减速器虚拟样机各轴的转速和加速度大小与方向,各级轮齿的啮合力等情况。并根据实际设计减速器的数据,得出理论计算值,将动力学仿真分析出的结果与理论计算值相比较,得出的结论。
[Abstract]:With the rapid development of computer technology, CAD is more and more widely used in mechanical manufacturing industry. However, the generality of CAD software is difficult to meet the needs of specific product design. According to different practical requirements, CAD secondary development technology based on general CAD software has become an important part of modern product design. As a new method of CAE technology, virtual prototyping can modify the design of product conveniently by establishing virtual prototyping model before the physical prototype is manufactured. It can not only shorten the development period, but also improve the design quality and efficiency. In this paper, the parametric design and virtual prototyping technology are used to design the parts of the reducer. The main contents of this paper are as follows: first of all, Taking the powerful 3D software UG as the development platform, the method of UG secondary development is deeply studied, and the 3D parametric modeling of involute spur gear is realized by UG secondary development tool UG/Open Grip. The parametric design system of involute spur gear is developed by using UG/Open API,VC and other technologies. After the 3D model of involute spur gear is completed, the 3D model of other parts can be created, and the virtual assembly of reducer can be completed, and the interference analysis of gear transmission system can be carried out. Then, the 3D model of the reducer established in UG is imported into ADAMS with the data of Parasolid format. The basic theory of ADAMS virtual prototyping is discussed, and various constraints, contact force, driving torque and load are added to build the virtual prototype model. Finally, the simulation conditions of the virtual prototype model of the reducer are set up, and the dynamic simulation analysis of the virtual prototype model is carried out. The speed and acceleration of each axis of the virtual prototype of the reducer and the meshing force of each gear tooth are obtained respectively. According to the data of the actual design of the reducer, the theoretical calculation value is obtained, and the result of dynamic simulation analysis is compared with the theoretical calculation value, and the conclusion is drawn.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH132.46

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