机械产品集成智能化设计系统的研究

【作者】 徐晶；

【导师】 陈靖芯；

【作者基本信息】 扬州大学 ， 机械制造及其自动化， 2003， 硕士

【摘要】 现代科技迅速发展，信息瞬息万变。竞争激烈的市场经济给企业的产品开发和经营决策带来了巨大的变化和机遇，企业要想生存发展就必须提高其产品的竞争力，迅速响应市场需求，进行最佳经营决策。具有竞争力的经营决策强调数据的准确性与及时性，必须建立在对产品技术方案进行科学合理的规划与设计的基础之上。因此，提高产品设计开发系统的集成性和智能化程度，实现产品开发与经营决策的一体化，不仅能提高产品质量、降低成本、缩短开发周期，而且还能提高企业经营决策的科学性、合理性，以及企业对市场的快速响应能力。 本文在有效经营决策系统的总体框架下，围绕着如何缩短产品开发周期、为评价决策系统提供可靠、及时的数据支持，对零部件智能化设计、机械加工工艺智能化设计、工装模具智能化设计以及机械产品集成智能化设计系统的理论和方法进行了研究和探讨，分别讨论了其中的关键技术及其实现方法，并以碟簧为研究对象研制开发了碟簧产品的集成智能化设计系统。本文着重在如下几个方面进行了研究和探讨： 1．在产品设计中从知识处理的角度研究了智能化设计的方法，进而研究了智能化设计中的主要技术及其实现； 2．在工艺设计中研究了基于特征识别的零件分类方法、工艺知识库建立的方法、基于推理和典型工艺的工艺设计方法； 3．在模具设计中讨论了冲裁模具智能化设计中自顶向下和自底向上的多种设计方法，以及模具零部件中标准件的建库技术、基于装配模板和虚拟零件的模具功能分析、概念设计、结构设计等； 4．在系统集成方面研究了基于分布式技术的三层体系结构、大型非结构化数据的远程存储和读取技术、基于OLE自动化技术的CATIA V5的二次开发以及该软件与智能化设计系统集成的方法。 经研究开发的碟簧集成智能化设计系统，不仅能够进行碟簧技术方案的初步设计，进行新产品快速开发，而且能为企业经营决策提供了准确、及时的数据支持。初步设计形成的产品技术方案不仅能指导产品开发后期的并行详细设计，而且为企业缩短产品开发周期、增强产品竞争力提出了一个新思路，为实现企业产品开发与经营决策一体化、提高决策的及时性与可靠性提供了一条新途径。更多还原

【Abstract】 The modern market economy is characterized by the rapidly progressing science and technology and the transient and variable information and the more and more fierce competition, that brings the enterprises many changes and chances. It is necessary for an enterprise’s survival and development to improve the competitiveness of its products and to rapidly respond to the requirement of the market and to make the best and most profitable management and decision. Effective management decision emphasizes on the exact and timely product data, and it must base on the scientific and rational planning and design of the product technical proposal. So to improve the integration and intelligence of the product design system and to achieve the integration of the product development and decision can enhance the scientificity and rationality and the ability of rapid response to market change of the enterprise as well as improve the quality and reduce the cost and shorten developing period of its products.Under the whole frame of the effective management and decision system, aiming at how to shorten the developing period of the products and how to provide the reliable and timely data for evaluation and decision system, the theories and the methods of the part and component intelligent design and the mechanical process intelligent design and the mould intelligent design and the integrated intelligent design system are studied and discussed. The key technologies and the realization of these aspects are also debated; an integrated and intelligent design system for disc spring is developed. The article focuses its study on the following aspects:1. As to the product design, from the view of knowledge processing, the methods of intelligent design are researched; the main technologies and their implementation are also researched;2. In the area of process planning and design, the classification of the part based on its features’ recognition and the means of the construction of process knowledge base and the half generative process design using the typical process and reasoning are studied;3. In mould design, the top-down and bottom-up design methods are debated, and the technology to set up the standard parts base in mould design and the mould functional analysis and conceptual design and structural design based on assembly templates and virtual part technologies are also discussed;4. About the integrated system, the three-tier architecture of the system based on the distributed technology and the technology of remote saving and reading of big non-structural data and the methods of second-time development of CAD software CATIA V5 and seamless integration between the CAD software and integrated intelligent design system based on OLE automation are explained.The developed integrated intelligent system for disc spring not only can carry though the raw technical proposal of the disc spring and manage the quick exploitation of a new disc spring product, but also can provide the accurate and timely data for the management decision of the enterprise. And the raw technical proposal not only can instruct the following detailed design, but also presents a new way for shorting the product-exploiting period and improving the competitiveness of the products and provides a new approach for realizing the integration of the products exploitation and decision and improving the promptitude and reliability of the decision.更多还原