关键词: 几何演变, 加工特征, 复杂网络, 工艺知识表示, 工艺知识推送

Abstract: To deal with the difficult problem of knowledge representation and push in machining process,a basic view that the geometry variation process of machining feature was the direct carrier of process knowledge was proposed.The knowledge representation of machining process driven by geometric variation and process knowledge push model based on knowledge representation were presented.The geometric variation of parts machining process was represented,and a new process knowledge model that could describe the formation of machining feature was established.The knowledge network model was built by applying complex network theory,and the knowledge push process was defined,which realized the accurate knowledge push based on process design task.Experimental results showed that the proposed method was feasible and effective.

Key words: geometric variation, machining feature, complex network, process knowledge representation, process knowledge push