基于本体和模糊理论的公差等级智能设计方法研究  

Research on Tolerance Grade Intelligent Design Method Based on Ontology and Fuzzy Theory

作　　者：李健 黄美发[1,2] 王志越 罗民宏[1] LI Jian;HUANG Meifa;WANG Zhiyue;LUO Minhong(School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology,Guilin Guangxi 541004, China;Guangxi Key Lab of Manufacturing System and Advanced Manufacturing Technology, Guilin Guangxi 541004, China;The 45th Research Institute of China Electronics Technology Group Corporation, Beijing 100176, China)

机构地区：[1]桂林电子科技大学机电工程学院,广西桂林541004 [2]广西制造系统与先进制造技术重点实验室,广西桂林541004 [3]中国电子科技集团公司第四十五研究所,北京100176

出　　处：《机床与液压》2021年第19期18-24,共7页Machine Tool & Hydraulics

基　　金：国家自然科学基金地区科学基金项目(51765012);广西研究生教育创新计划项目(YCSW2020163)。

摘　　要：在机械装配设计过程中,公差等级设计的实质是正确解决机械零件使用要求与制造成本之间的矛盾。传统公差等级的选择范围跨度较大,人为查表选择与经验选择居多,不确定性大,准确性与效率对设计者的经验要求很高。为减少公差配合中公差等级选用过程中对设计者经验的依赖,通过综合分析公差等级选用考虑因素,运用模糊综合评判原理构建公差等级智能选择本体规则,基于计算机本体语言建立公差等级优化推理模型。通过工程实例展示该方法的工作过程,验证了该方法的有效性。In the process of mechanical assembly design,the essence of tolerance grade design is to correctly resolve the contradiction between the use requirements of mechanical parts and the manufacturing cost.The selection range of traditional tolerance grade is large,and most of them are manual look-up table selection and experience selection,so the uncertainty is large,and the accuracy and efficiency require the experience of the designer very high.In order to reduce the reliance on the designer’s experience in the selection of tolerance grades in tolerance matching,through comprehensive analysis of tolerance grade selection consideration factors,the fuzzy comprehensive evaluation principle was used to construct tolerance grade intelligent selection ontology rules,and a tolerance grade optimization inference model was established based on computer ontology language.The working process of the method was demonstrated through engineering examples,and the effectiveness of the method was verified.

关 键 词：公差等级 模糊理论 本体 优化推理 

分 类 号：TP397.72[自动化与计算机技术—计算机应用技术]