• 论文 •    

基于事例的工艺设计中形状相似性计算方法

刘文剑,许之伟,陈在礼   

  1. 哈尔滨工业大学CAD/CAM研究所,黑龙江哈尔滨150001
  • 出版日期:2001-09-15 发布日期:2001-09-25

A Method of Measuring form Similarity of Parts for Process Planning

LIU Wei-jian,XU Zhi-wei,CHEN Zai-li   

  1. CAD/CAM Institute,Harbin Institute of Technology,Harbin150001,China
  • Online:2001-09-15 Published:2001-09-25

摘要: 面向对象的零件事例的表示、形状相似性计算方法适用于各种类型的零件,可以表示具有复杂层次结构的事例并计算其相似度。该方法可以在具有不同属性结构的事例之间进行相似性计算,解决了相似零件的检索和异构事例的相似性比较的问题。

关键词: 事例推理, 事例检索, 面向对象, 工艺设计

Abstract: This paper presents a method of Object-Oriented case representation,indexing and retrieving in process planning system for all kinds of parts using case-based reasoning. A method of measuring form similarity of parts is presented based on the object-oriented representation of parts types and parts features. An effective similarity metric is developed to measure the forms similarity of parts between two parts which have different features or belong to different type of parts. And the most similar case can be retrieved rapidly and correctly.

Key words: case-based reasoning, case retrieve, object-oriented, process planing

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