Part Retrieval Technology Based on Geometric Shape and Topological Correlation
Part retrieval technology plays an important role in the product structure reconstruction design.Because the basic functional and structural information of the part is represented by the shape and topological association of the geometric elements.A part retrieval technology based on geometric shape and topological correlation is proposed in this paper.The part retrieval method is constructed from the two aspects,the semantic level and the geometric topological correlation.Firstly,at the semantic level,the fuzzy query of the transplanted parts is realized by characterizing the key semantic description of the transplanted parts.Then,at the level of geometric topological relationship,the similarity calculation is performed on the geometric shape information and the topological feature information in the variant parts library and transplanted parts library.Through the similarity retrieval algorithm and the setting of the retrieval threshold,the transplanted parts which similar to the variant parts are retrieved.Finally,the feasibility of the technology is verified by an example.
Transplanted parts retrieval Similarity calculation Description semantics Geometric shape correlation Topological feature correlation
Ning Ma Bo Yang Junzhi Shang
School of Mechanical Engineering,University of Jinan,Jinan 250022,China
国际会议
浙江湖州
英文
499-507
2019-08-12（万方平台首次上网日期，不代表论文的发表时间）