关键词: 知识表示, 系统化建模方法, 知识层次结构, 知识拓扑结构, 制造知识, 飞机钣金工艺

Abstract: To analyze the composition and build the structure of the manufacturing knowledge of complex product process domain, the manufacturing knowledge was analyzed from a systematic view based on the information essence of knowledge. Then the systematic modeling method for manufacturing knowledge was proposed. From macro and whole viewpoint, the approach to classifying domain knowledge into minimum granularity knowledge from top to down was presented, and the knowledge type spectrum was used to describe the knowledge hierarchy. From a micro and correlated viewpoint, the information composition relationship and approach to building topological structure of manufacturing knowledge were presented, and the memory net was used to describe the knowledge topological structure. The knowledge base can be built based on the model. The knowledge modeling method and its effectiveness were exemplified in manufacturing knowledge of aircraft sheet metal forming process domain.

Key words: knowledge representation, systematic modeling method, knowledge hierarchy, knowledge topology, manufacturing knowledge, aircraft sheet metal forming process