基于SDAI/AP209的有限元后处理技术研究

【作者】 楼建列；

【导师】 卢炎麟；

【作者基本信息】 浙江工业大学 ， 机械电子工程， 2003， 硕士

【摘要】 本文研究基于STEP国际标准的SDAI标准数据存取接口和AP209协议，来实现有限元分析本体程序和后处理系统之间的数据交换。讨论了通过SDAI接口，实现AP209格式文件的读入和输出，并用OpenGL对其数据进行可视化和结果查询。本文中论述的技术的最终目的是实现多目标，即能与多个有限元分析本体程序实现连接。 论文第一章概述了国内外CAE技术的过去、现在的研究和应用状况及其未来的发展趋势，并论述了本文的研究目的、意义及主要研究内容和技术路线。 论文第二章简要介绍了STEP标准的发展和现状，及详细说明了SDAI的一些主要内容。作为一种产品全生命周期数据的形式化信息建模工具，STEP的描述语言EXPRESS在本文中得到了简要的陈述。 作者在第三章中阐述了基于SDAI／AP209接口进行有限元后处理的意义，并对有限元分析过程对数据的需求进行了分析，对AP209信息模型的构成进行了详细的分析与介绍。 第四章是基于SDAI／AP209有限元后处理系统的实现部分。该部分介绍了基于SDAI／AP209有限元后处理系统的设计流程图，信息获取及数据处理等内容。 第五章介绍了独立于操作系统的三维图形库OpenGL，以及OpenGL在VC++6.0环境下的MFC图形编程方法和人机交互技术。 论文的第六章介绍了本有限元后处理系统所实现的功能。 最后，在第七章总结了全文的主要研究成果，并展望了未来的研究方向。更多还原

【Abstract】 The method based on SDAI (Standard Data Access Interface) and AP209 protocol in STEPC Standard for the Exchange of Product Model Data)international standard for data exchanging between the finite element analysis (FEA) program and the post-processing systems is studied in this dissertation. The process of data input and output of AP209 formatted file by SDAI, and visualization of these data by OpenGL are discussed. The aim of technology studied in the paper is to realize multiple targets, i.e. it can connect with several FEA programs.The history, application and development tendency of CAE are introduced, and the purpose, significance, contents and technical line are given in Chapter 1.In Chapter 2, the development of STEP standard and the main contents of SDAI are introduced. As an all life cycle information modeling tool for products, EXPRESS-the describe language for STEP is briefly discussed.The significance of post-processing of FEA based on SDAI/AP209 is put, the requirement of data for the whole process of FEA is analyzed, and the structure of the information model based on AP209 is discussed in great detail in Chapter 3.Chapter 4 describes the realization of the FEA post-processing system based on SDAI/AP209, introduces the design stream figure and the method to obtain information and treat data.The OpenGL 3D figure base and MFC figure programming and man-computer interaction method for OpenGL under the VC++6.0 environment are introduced in Chapter 5.Chapter 6 introduces the function of the developed FEA post-processing system.Finally, Chapter 7 summarizes the main fruits of the whole study, and gives the prospects for the tendency of the research.更多还原