It is urgent to solve various problems in electromagnetic （EM） engineering under the increasingly complicated environment. Some expert systems （ES） come into being just to keep up with the demand for solving these...It is urgent to solve various problems in electromagnetic （EM） engineering under the increasingly complicated environment. Some expert systems （ES） come into being just to keep up with the demand for solving these problems. Combined with the analysis of development orES technology and the development trend of EM engineering software in recent years, the application orES technology in EM engineering is discussed, and especially the progress of complete ES in electromagnetic compatible （EMC） is introduced.展开更多
针对稠密机结构复杂、关联参数众多和设计过程繁琐导致的传统设计方式效率低下问题,文章提出一种面向对象的稠密机知识驱动设计方法。该方法基于参数化原理,采用知识工程(knowledge based engineering,KBE)技术模拟专家设计,利用面向对...针对稠密机结构复杂、关联参数众多和设计过程繁琐导致的传统设计方式效率低下问题,文章提出一种面向对象的稠密机知识驱动设计方法。该方法基于参数化原理,采用知识工程(knowledge based engineering,KBE)技术模拟专家设计,利用面向对象的思想进行知识表达,并针对基于案例的推理(case-based reasoning,CBR)提出一种新的案例选择方法。利用构建的稠密机辅助设计系统进行验证,结果表明,面向对象的知识驱动设计方法能显著缩短稠密机的设计周期、规范设计过程、提高设计质量。文章所提方法对于稠密机及其他工业产品的智能化、自动化设计具有一定的参考价值。展开更多
Process planning for large complicated stampings is more complicated, illegible and multiform than that for common stampings. In this paper, an intelligent master model of computer aided process planning （CAPP） for ...Process planning for large complicated stampings is more complicated, illegible and multiform than that for common stampings. In this paper, an intelligent master model of computer aided process planning （CAPP） for large complicated stampings has been developed based on knowledge based engineering （KBE） and feature technology. This innovative model consists of knowledge base （KB）, process control structure （PCS）, process information model （PIM）, multidisciplinary design optimization （MDO）, model link environment （MLE） and simulation engine （SE）, to realize process planning, optimization, simulation and management integrated to complete intelligent CAPP system. In this model, KBE provides knowledge base, open architecture and knowledge reuse ability to deal with the multi-domain and multi-expression of process knowledge, and forms an integrated environment. With PIM, all the knowledge consisting of objects, constraints, cxtmricncc and decision-makings is carried by object-oriented method dynamically for knowledge-reasoning. PCS makes dynamical knowledge modified and updated timely and accordingly. MLE provides scv. cral methods to make CAPP sysmm associated and integrated. SE provides a programmable mechanism to interpret simulation course and result. Meanwhile, collaborative optimization, one method of MDO, is imported to deal with the optimization distributed for multiple purposes. All these make CAPP sysmm integrated and open to other systems, such as dic design and manufacturing system.展开更多
基金the Key Project of Chinese Ministry of Education (No. 104166)
文摘It is urgent to solve various problems in electromagnetic （EM） engineering under the increasingly complicated environment. Some expert systems （ES） come into being just to keep up with the demand for solving these problems. Combined with the analysis of development orES technology and the development trend of EM engineering software in recent years, the application orES technology in EM engineering is discussed, and especially the progress of complete ES in electromagnetic compatible （EMC） is introduced.
文摘针对稠密机结构复杂、关联参数众多和设计过程繁琐导致的传统设计方式效率低下问题,文章提出一种面向对象的稠密机知识驱动设计方法。该方法基于参数化原理,采用知识工程(knowledge based engineering,KBE)技术模拟专家设计,利用面向对象的思想进行知识表达,并针对基于案例的推理(case-based reasoning,CBR)提出一种新的案例选择方法。利用构建的稠密机辅助设计系统进行验证,结果表明,面向对象的知识驱动设计方法能显著缩短稠密机的设计周期、规范设计过程、提高设计质量。文章所提方法对于稠密机及其他工业产品的智能化、自动化设计具有一定的参考价值。
文摘Process planning for large complicated stampings is more complicated, illegible and multiform than that for common stampings. In this paper, an intelligent master model of computer aided process planning （CAPP） for large complicated stampings has been developed based on knowledge based engineering （KBE） and feature technology. This innovative model consists of knowledge base （KB）, process control structure （PCS）, process information model （PIM）, multidisciplinary design optimization （MDO）, model link environment （MLE） and simulation engine （SE）, to realize process planning, optimization, simulation and management integrated to complete intelligent CAPP system. In this model, KBE provides knowledge base, open architecture and knowledge reuse ability to deal with the multi-domain and multi-expression of process knowledge, and forms an integrated environment. With PIM, all the knowledge consisting of objects, constraints, cxtmricncc and decision-makings is carried by object-oriented method dynamically for knowledge-reasoning. PCS makes dynamical knowledge modified and updated timely and accordingly. MLE provides scv. cral methods to make CAPP sysmm associated and integrated. SE provides a programmable mechanism to interpret simulation course and result. Meanwhile, collaborative optimization, one method of MDO, is imported to deal with the optimization distributed for multiple purposes. All these make CAPP sysmm integrated and open to other systems, such as dic design and manufacturing system.
