【作者】 杨丽艳；

【导师】 王玉新；

【作者基本信息】 天津大学 ， 机械设计及理论， 2004， 硕士

【摘要】 产品的快速自动化创新设计是企业参与全球化市场竞争，满足快速多变的市场需求的根本。本文以SolidWorks三维设计软件为平台，利用SolidWorks的二次开发技术，以VC++为开发工具，对三维虚拟机械创新设计系统进行了研究，主要工作包括：三维虚拟机械创新设计系统符号方案的自动识别；三维虚拟机械的空间布局；虚拟实体的自动生成；三维虚拟机械的运动仿真等。根据机构组合创新原理，本文提出一种基于基本机构的符号方案自动识别方法。利用该方法，可以自动识别出复杂机构的多种信息，如各组成机构的类型及数量，包括串联、并联、混合连接在内的各种基本机构的连接关系及运动输入输出关系等。符号方案的自动识别为符号方案三维实体化打下了基础，同时也为基于基本机构的复杂机械系统的计算机辅助概念设计创造了条件。与传统的布局问题不同，组成机械系统的基本机构之间存在一定的输入输出连接关系，其布局具有特殊性因而更为复杂。在符号方案自动识别结果的基础上，本文分析了组成机械系统的基本机构的连接关系，给出了三种基本连接关系的布局模型，采用自适应遗传算法构造了复杂机械系统空间布局的有效方法。采用面向对象的技术，利用三维平台的二次开发环境，将组成机构的每一构件生成三维虚拟实体。并将三维构件实体预置到特定的位置，从而实现复杂机械系统的装配与运动仿真。最后作为上述理论和方法的应用实例，本文对高速纽扣电池自动装配装置的创新设计的全过程进行了分析，完成了该装置从符号方案识别，结构设计，运动仿真，虚拟装配的全过程的自动化。说明了根据本文方法对产品进行快速自动化创新设计的可行性和有效性。更多还原

【Abstract】 Product’s rapidly and automatically creative design lays the basis for enterprise to compete with others in the worldwide market and to satisfy market requirements which change rapidly and frequently. Taking the 3D design software, SolidWorks, as the platform, using the second-development method of the SolidWorks and VC++ , this paper studies 3D virtual creative mechanical design system. The main work is as follows: automatic identification of symbol scheme on the mechanical system, spatial layout of the 3D virtual mechanical, automatic produce of the virtual entity, motion simulation of the 3D virtual mechanism etc.According to creative mechanism combination theory, this paper presents an automatic identification method for symbol scheme based on basic mechanism. With this method, many kinds of information of complex mechanism may be automatically identified, such as types and number of basic mechanisms, all sorts of combination patterns of basic mechanisms including series, parallel and hybrid, as well as input and output relationship etc. This method put forward in this paper lays the foundation for embodying symbol scheme into three-dimensional entity, at the same time, it also makes condition for computer aided conceptual design of complex mechanical system based on basic mechanisms.Different from the traditional layout problem, there exists a certain input and output connection relation among basic mechanisms composing the machine system, so this kind of layout has its particularity and complexity. Based on the results of the automatic identification for symbol scheme, the connection relation of basic mechanisms composing machine system is analyzed in this paper firstly. Then the layout model of three kinds of connection relation is presented. At last the valid spatial layout optimization algorithm of complex machine system is constructed adopting adaptive genetic algorithm.Using object oriented method and second-development environment of 3D platform, this paper models 3D entity for every mechanism and locates them in the special location to realize assembly and motion simulation of complex mechanical system.In the end, taking the device of high speed fastener battery as an example, analyzes its whole creative design progress. Do the work from symbol identification to machinery design, motion simulation and virtual assemble automation. These verify that the method mentioned in this paper is validity and feasibility to the creative design of the product.更多还原