Object-oriented Intelligent Cad System

Computer Aided Design(CAD),is a kind of modern design technology that helps designers to finish production design assignment speediness,high speed,high quality,low cost.The application of CAD of our country is at primary prevalence stage ,and at the same time faces to the challenge of global networking and informationing.The developing requirement of users puts forword new requests of the CAD production, software enterprise and application level.Users not only require integration CAD/CAE/CAM/CAPP/PDM and so on ,but also puts forword the request on the aspect of deleveloping software ,that is the same essentiality of convenience of users and intelligentize,functionality,leveling.On this developing tendency,put forword "The research and development of the object-oriented intelligentize CAD system",by conceiving a opening,applied,object-oriented CAD system,realize the intelligentizing of designing parts,to provide effective measure of integration of information.And aims to push the application of CAD technology at home and the application of advanced design technology in modern manufacturing.This paper emphasize the following content:1.Based on summing up and analyzing the developing and applicating actuality of the CAD system,studies following content:based on the CAD software technology in existence worldwide and its application in the domestic enterprise now,the penman put forward the model of Object-Oriented Intellectualized CAD system;2.On the basis of application of existing CAD system,aiming at actual instance ,and take the factual corporation as example,research and build the parametered circumstance of products and parts design in corporations;3.Exerting human-computer interactive technology,based on the thought of realizing factual part-designed function, study the developed strategy of human-computer interactive intellectualized part-designed flat roof;4.Explore the Knowledge Based Engineering CAD system, aiming to automatization and intellectualized parts design,and advance resolvent of practiced intellectualized CAD system.On the other hands,the auther also studies and illuminate these:1.Aiming at the expansibility and integrating of systems,explore modularization data-deposed system of development program,solve the expansed problem of systems,bring forward resolvent of the localizated feature of existed CAD development system;2.Study data-modeling,structure-designed and maintenance technology of databases and tables.Apply modeling method of system function-model and information-model based on the advanced IDEFO, IDEF1x;3.Aiming at actuality,taking actual envirnoment of domestic corporations applied background develop FJCAD system.The paper put forward the thought of the Object-Oriented Intellectualized CAD system,haved pertinency and currency ,introducing advanced thechnologythought ,pushing forward more popularization and application of CAD technology in China.At last,based on problem met in practice and the analyse of the relative theory,the author put forward some new imagine.