关键词: 机械结构形态, 三维模型, 基本体, 知识表示, 知识融合

Abstract: A knowledge fusion method of Mechanical Structure Morphology (MSM) was presented to solve the incomplete information problem of some primitive morphologies.The knowledge transformation process of MSM was analyzed according to the extraction rules of MSM,and some knowledge representation models were constructed,such as transformation model knowledge of primitive,meta-knowledge of MSM and knowledge of MSM.Some fusion rules including inclusive rule,superposition rule,association rule and absorption rule were proposed according to the characteristics of primitive morphology,and their application characteristics were introduced.A MSM knowledge fusion algorithm was developed based on the operation relation between the primitives of mechanical structure,which implemented the integration among the primitive morphologies.The feasibility of knowledge representation method of MSM and its knowledge fusion algorithm were demonstrated by an illustrative example of bracket structure.Knowledge fusion of MSM provided a practical method for the reconstruction of MSM to simplify 3D model of mechanical structure.

Key words: mechanical structure morphology, 3D model, primitive, knowledge representation, knowledge fusion