航空薄壁结构有限元建模的智能化求解模型研究  

Intelligent Problem Solving Model for Finite Element Modeling of Aeronautical Thin Wall Structures

作　　者：徐元铭[1] 周胜强[1] 龚尧南[1] 

机构地区：[1]北京航空航天大学飞行器设计及应用力学系,北京100083

出　　处：《南京航空航天大学学报》2001年第6期526-530,共5页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：航空工业总公司CIMS应用工程计划基金资助项目

摘　　要：介绍了利用 CAD、网格自动剖分和人工智能技术相结合进行航空薄壁结构有限元建模的问题求解框架。着重论述了建模过程中模型演变的四个不同阶段的任务 ,提出了适用于建模各阶段的整体式知识表达模型 ,并对采用黑板机制来组织知识推理和算法任务调度的过程求解模型做了描述。Based on CAD, automatic mesh generation and AI reasoning techniques, the problem solving framework for finite element modeling (FEM) of aeronautical thin wall structures is introduced. The modeling process is characterized by the consecutive evolution of four models under four stages, and the content of each stage is given. The integrated knowledge representation scheme applicable to the above four stages of modeling is proposed. The blackboard architecture is adopted for managing task planning and control, domain knowledge reasoning and algorithm execution. It is believed that such framework is effective for constructing the practical FEM expert system of complex thin wall structures.

关 键 词：有限元法 人工智能 知识表达模型 黑板机制 航空薄壁结构 

分 类 号：V214.4[航空宇航科学与技术—航空宇航推进理论与工程]