A Design Knowledge Retrieval Approach For Patent And Mechanical Parts

In recent decades,in the field of product design,innovational design and reuse design take important places.One of the core problems of innovational design and reuse design is how to get the needed information form massive information,that is,the problem of knowledge acquirement.Knowledge acquirement is the basis innovational design and reuse design.This study focused on knowledge acquirement and application for innovational design and reuse design.In theory,this paper studied the model of engineering semantic and engineering semantics web;in algorithm,this paper raised an algorithm of knowledge retrieval;in software development,this paper design the patent retrieval prototype system and parts reuse system.There are several aspects of the work:(1) This paper analyses the knowledge retrieval problem of product design,and proposes a knowledge retrieval framework for paoduct innovational design and reuse design.(2) This paper proposes the concept of engineering semantic and the model of engineering semantic web.Engineering semantic and engineering semantic web is the concept that comes from linguistic,they are helpful to construct a knowledge system that its object is the concept of various parts when they are used in the field of product design.The basic design thinking of analysis of the product design information by engineering semantic and engineering semantic web is extracting all kinds of implied features,attributes and relationships from product design information,and then forms a relationship table.This table as the center of the establishment of the internal relations of characteristics of the design information and features,characteristics and attributes,as well as the properties and properties, and then form a mesh information structure,to facilitate for a knowledge network-based configuration design information retrieval and knowledge reasoning.(3) This paper gives several information retrieval approachs for innovational design and reuse design,such as a semantic key-phrase retrieval approach for patent,a semantic similarity compare approach for patent,and a characteristic retrieval approach for mechanical parts.(4) This paper gives a model of man-machine integration case-based reasoning for mechanical parts reuse to combine and reuse the product design knowledge of man-machine union.In the knowledge combination process,the human's wisdom and the evolution algorithm display the respective special skills and supply mutually,and the union makes the result more practical.This article works is helpful for enhancing the artificial intelligence level of the product innovation design.The system prototype for digging and reusing the information of product innovation design given in the paper will provide a platform supporting integrated design for product innovation design.