工程结构有限元模型化知识系统

Knowledge Structure of Finite Element Modeling

有限元模型比知识的获取和形式化是有限元模型化专家系统建立的核心。本文以信息论为工具,在总结大量工程经验和理论研究成果的基础上,建立了工程结构模型化知识系统,它分为两个层次,一是复杂结构模型化,二是简单结构模型化。后者是前者的基础,包括力学模型化、有限元模型化和网络生成三部分。这些知识均已溶人了作者开发的专家系统之中。

The knowledge acquisition is the 'bottleneck'in the development of finite element modeling expert system. Based on the information theory, the knowledge structure of finite element modeling is proposed to include the large amount of engineers 'judgments and researchers' results. The knowledge is divided into that of both complex structure modeling and simple structure modeling; the latter constitutes the basis of the former, which is composed of analytical model, finite element model and mesh generation.