基于实例的装配协调方案设计技术研究

【作者】 彭培林；

【导师】 李原；

【作者基本信息】 西北工业大学 ， 航空宇航制造工程， 2005， 硕士

【摘要】 系统地提出基于实例的装配协调方案设计的理论与方法,对飞机装配协调实例的表示、检索及实例库的创建与维护等关键技术进行深入的研究。在理论研究的基础上,开发了基于实例的装配协调方案设计支持系统,有力地支持飞机的装配协调方案设计工作。全文的组织结构如下: 第一章综述飞机装配协调技术研究及应用的发展现状,探讨飞机装配协调工艺方案设计的研究内容。论述基于实例的飞机装配协调方案设计工作的研究意义和本文的主要研究内容。 第二章提出一种基于实例的装配协调方案设计方法,阐述基于实例的装配协调方案设计工作的原理。 第三章构建飞机的装配协调实例知识模型,依据飞机零部件装配层次关系对装配协调实例进行组织,采用面向对象的方法描述飞机装配协调实例的组织结构;探讨装配协调实例库的创建及实例在数据库中的存储结构。 第四章提出一种基于相似度的装配协调实例检索方法。探讨相似度计算问题,论述装配协调实例的检索流程、实例的相似匹配算法及实例的相似度计算函数。以某型飞机机翼为例验证算法的有效性。 第五章基于CATIA V5和CAA RADE开发基于实例的装配协调方案设计支持系统。介绍系统的应用平台及开发工具,论述系统的体系结构、主要的功能模块——装配协调实例的管理与调用,以某型飞机机翼实例为例验证系统的有效性。 第六章总结本文的主要研究工作,对本文相关研究领域的发展前景进行展望。更多还原

【Abstract】 The dissertation presents a new theory and method of Case-based Assembly Coordination Scheme Design (CBACSD). Research of the key techniques of CBACSD includes the representation, retrieving of Assembly Coordination Case (ACC) and foundation, maintenance of case library. On the basis of the theoretical research, a supporting system of CBACSD is developed, which can support designer in CBACSD. The dissertation is organized as followed:Chapter 1 gives a review of research and application in aircraft assembly coordination technique, while the contents of aircraft assembly coordination process design are also analyzed. And the significance and contents of CBACSD are proposed particularly.Chapter 2 presents a method of CBACSD, and expatiates the theory of CBACSD.Chapter 3 constructs the knowledge model of aircrafts assembly coordination case, and relates cases by assembly layer relation, while the relation is represented by Object-oriented Approach. It is discussed in the chapter, foundation of assembly coordination case library and storage structure of case in database.Chapter 4 presents a similarity-based retrieving approach of assembly coordination case. While calculation of similarity is discussed, the retrieving process, the similarity-based algorithm and the similarity function is described. Finally, a certain kind of aircraft wing is used as example to examine the algorithm.Chapter 5 develops a system, which can support designer in performing CBACSD. The application platform and development kit of the system is introduced, and the architecture and key module of the system is expatiated. Finally, a certain kind of aircraft wing is used as example to examine the system.Finally, conclusions are given along with recommendations for future research in Chapter 6.更多还原