The method and basic structure of object─oriented knowledge representation are presented in detail and the hierarchical structurc of object description is explained Based on object─oriented technology.the gear box c...The method and basic structure of object─oriented knowledge representation are presented in detail and the hierarchical structurc of object description is explained Based on object─oriented technology.the gear box concept design expert cistem of NC miller (GBCDLS) has been developed and applied to practical use.Moreover. the design principlc and techniques of GBCDES are discussed and analyzed. and the main functions of GBCDES are described. From the results of applications.it can be seen that GBCDES is effective and successful.展开更多
An expert system prototype for fibre-reinforced plastic matrix (FRP) composite material design, ESFRP, has been developed. The system consists of seven main functional parts: a general inference engine, a set of knowl...An expert system prototype for fibre-reinforced plastic matrix (FRP) composite material design, ESFRP, has been developed. The system consists of seven main functional parts: a general inference engine, a set of knowledge bases, a material properties algorithm base, an explanation engine, various data bases, several function models and the user interface. The ESFRP can simulate human experts to make design scheme for fibre-reinforced plastics design, FRP layered plates design and FRP typical engineering components design. It can also predict the material properties and make strength analysis according to the micro and macro mechanics of composite materials. A satisfied result can be gained through the reiterative design.展开更多
Expert systems aimed at the general design of projectiles can implement a series of intelligent designs, such as the design of HE shell, the scheme expounded and proved, the emulation analysis and calculation, etc. Ai...Expert systems aimed at the general design of projectiles can implement a series of intelligent designs, such as the design of HE shell, the scheme expounded and proved, the emulation analysis and calculation, etc. Aiming at the product design feature, the expert system adopts the object-oriented knowledge representation and all kinds of inference control engines to describe and reason the relevant knowledge regarding the product through the microcomputer. It embodies the foundation of emulation analysis and simulated manufacturing of the shell. It makes use of the method that knowledge expression is combined with condition of inference to carry out the overall design and emulation and reference. The paper gives the ways through which the functions can be achieved, gives the modularization of reference and the design methods of systematization, puts forward the method of knowledge expression and working interface, and supplies a platform for similar products of the shell category that can be quickly designed.展开更多
WLCDES is an expert system of wheel loader general sccheme design.In this paper, the system structure,conceptual design method,parameter design strategy and application of WL- CDES are introduced and disccussed.
Through the practice of developing an expert system FBCDES(Feed Box Conceptual De- sign Expert System)for the planomillingmachine in CIMS ERC(CIMS Engineering Research Center) in China,the paper intends to introduce a...Through the practice of developing an expert system FBCDES(Feed Box Conceptual De- sign Expert System)for the planomillingmachine in CIMS ERC(CIMS Engineering Research Center) in China,the paper intends to introduce a common problem-solving strategy for the mechanical product conceptual design expert system.Meanwhile some problems such as system architecture,knowledge representations and inference engine sets are also described.A yet more detailed discussion is given to the technical problems for realizing two key modules,that is concept design module and layout module.展开更多
This paper introduces a CAD system for silk dyeing and finishing.According to the technologicalrequirement,and the device condition,the technology design for silk boiling and bleaching is directlymade by a computer,on...This paper introduces a CAD system for silk dyeing and finishing.According to the technologicalrequirement,and the device condition,the technology design for silk boiling and bleaching is directlymade by a computer,on the basis of the principles and the principles of the expert system and the accu-mulated experience in the industry of silk boiling- off with bleaching,It discusses the construction ofthe data base for the system,the expression of various kinds of knowledge,the way of obtainingknowledge by the system and the design thought model,An example is provided for the expert systemdesign in this field.展开更多
This paper demonstrates the general character of some technology designing processes through their analysisand introduces a developing tool for the expert system in technology design.With this tool a particular domain...This paper demonstrates the general character of some technology designing processes through their analysisand introduces a developing tool for the expert system in technology design.With this tool a particular domain ex-pert can directly establish a knowledge base so as to form a practical expert system,and thus enhanca correctness ofknowledge experssion and the developing efficiency of the expert system.It also discusses in detail the mech-anism of reasoning,interpreting and knowledge obtaining.The knowledge base consists of three parts:classifyingrules,essential data,and regulating rules.It can be formed by means of the expert dialouge and edition.In its ap-plication,the knowledge base can constantly accumulate successful experience to achieve itsself-study function.The paper shows the way to describe the knowledge in a particular domain and the process of applying this tool ina particular domain. The tool is written in Turb-Prolog language,And an expert system for cocoon cooking isprovided.展开更多
A knowledge base system INCAP(Integration of Catalyst Activity Patterns)for selecting catalyst components has been developed by decomposing the catalyst designproblem into 5 easily solved sub-problems and by building ...A knowledge base system INCAP(Integration of Catalyst Activity Patterns)for selecting catalyst components has been developed by decomposing the catalyst designproblem into 5 easily solved sub-problems and by building up a weighted experimental es-timation model of catalytic activity for application of activity data.The INCAP was ap-plied to the design of catalysts for oxidative dehydrogenation of ethylbeneze and the re-sults are in agreement with the experimental ones.The characters of INCAP are analyzedfrom the view of design expert system.展开更多
A real time concurrent product and process design system for mechanical parts is described in this paper. It consists of integrated product model, the expert system of product manufacturability evaluation and the con...A real time concurrent product and process design system for mechanical parts is described in this paper. It consists of integrated product model, the expert system of product manufacturability evaluation and the controller of concurrent design. With the help of the controller of concurrent design, each feature of a part can be designed and evaluated based on manufacturing knowledge and resources, and can be modified according to the results of evaluation. The machining method of design feature can be selected based on manufacturing knowledge. So real time concurrent product and process design can be implemented based on integrated product model that is established based on generalized feature. Products and its design process can be optimized with the help of this system. The information and function integration of product design process can be realized. The time to market and the cost of products can be reduced.展开更多
By use of the integrated knowledge of mineral engineering, mineral processing, expert system, artificial neural networks(ANN), genetic algorithm, fuzzy mathematics and multimedia technology etc., MPES(mineral processi...By use of the integrated knowledge of mineral engineering, mineral processing, expert system, artificial neural networks(ANN), genetic algorithm, fuzzy mathematics and multimedia technology etc., MPES(mineral processing expert system) skeletal tool has been built, which is a construction tool for expert systems in the field of mineral processing. This system is programmed by C ++ language on microsoft windows platform, including multiple knowledge and reasoning methods, and can be used to build new expert systems for ore beneficiability prediction, mill design, faults diagnosis, production control and management decision.展开更多
At present, the main work of electron optical system CAD is solving equations and calculating mumerical values. However, the design perhaps needs more inference and expertise than numerical calculations because the st...At present, the main work of electron optical system CAD is solving equations and calculating mumerical values. However, the design perhaps needs more inference and expertise than numerical calculations because the structure of electron lens system is complicated. In this paper, a primary expert system is applied to design the electron lens system intelligently. This expert system is combined with SEU-3D program which is used to simulate the electron optical system to optimize the electron lens systems. In spite of this, the expert system which is established in this paper can also be used to diagnose the electron lens system. Although the knowledge base is small and rules are not abundant, this paper has used this system to obtain some very useful results. The initial success with this system suggests that further work need to be done whether more rules and knowledge will be added to extend the ability of expert system.展开更多
文摘The method and basic structure of object─oriented knowledge representation are presented in detail and the hierarchical structurc of object description is explained Based on object─oriented technology.the gear box concept design expert cistem of NC miller (GBCDLS) has been developed and applied to practical use.Moreover. the design principlc and techniques of GBCDES are discussed and analyzed. and the main functions of GBCDES are described. From the results of applications.it can be seen that GBCDES is effective and successful.
基金The work is funded by Heilongjiang Natural Science Foundation of China(No.E9803).
文摘An expert system prototype for fibre-reinforced plastic matrix (FRP) composite material design, ESFRP, has been developed. The system consists of seven main functional parts: a general inference engine, a set of knowledge bases, a material properties algorithm base, an explanation engine, various data bases, several function models and the user interface. The ESFRP can simulate human experts to make design scheme for fibre-reinforced plastics design, FRP layered plates design and FRP typical engineering components design. It can also predict the material properties and make strength analysis according to the micro and macro mechanics of composite materials. A satisfied result can be gained through the reiterative design.
文摘Expert systems aimed at the general design of projectiles can implement a series of intelligent designs, such as the design of HE shell, the scheme expounded and proved, the emulation analysis and calculation, etc. Aiming at the product design feature, the expert system adopts the object-oriented knowledge representation and all kinds of inference control engines to describe and reason the relevant knowledge regarding the product through the microcomputer. It embodies the foundation of emulation analysis and simulated manufacturing of the shell. It makes use of the method that knowledge expression is combined with condition of inference to carry out the overall design and emulation and reference. The paper gives the ways through which the functions can be achieved, gives the modularization of reference and the design methods of systematization, puts forward the method of knowledge expression and working interface, and supplies a platform for similar products of the shell category that can be quickly designed.
文摘WLCDES is an expert system of wheel loader general sccheme design.In this paper, the system structure,conceptual design method,parameter design strategy and application of WL- CDES are introduced and disccussed.
文摘Through the practice of developing an expert system FBCDES(Feed Box Conceptual De- sign Expert System)for the planomillingmachine in CIMS ERC(CIMS Engineering Research Center) in China,the paper intends to introduce a common problem-solving strategy for the mechanical product conceptual design expert system.Meanwhile some problems such as system architecture,knowledge representations and inference engine sets are also described.A yet more detailed discussion is given to the technical problems for realizing two key modules,that is concept design module and layout module.
文摘This paper introduces a CAD system for silk dyeing and finishing.According to the technologicalrequirement,and the device condition,the technology design for silk boiling and bleaching is directlymade by a computer,on the basis of the principles and the principles of the expert system and the accu-mulated experience in the industry of silk boiling- off with bleaching,It discusses the construction ofthe data base for the system,the expression of various kinds of knowledge,the way of obtainingknowledge by the system and the design thought model,An example is provided for the expert systemdesign in this field.
文摘This paper demonstrates the general character of some technology designing processes through their analysisand introduces a developing tool for the expert system in technology design.With this tool a particular domain ex-pert can directly establish a knowledge base so as to form a practical expert system,and thus enhanca correctness ofknowledge experssion and the developing efficiency of the expert system.It also discusses in detail the mech-anism of reasoning,interpreting and knowledge obtaining.The knowledge base consists of three parts:classifyingrules,essential data,and regulating rules.It can be formed by means of the expert dialouge and edition.In its ap-plication,the knowledge base can constantly accumulate successful experience to achieve itsself-study function.The paper shows the way to describe the knowledge in a particular domain and the process of applying this tool ina particular domain. The tool is written in Turb-Prolog language,And an expert system for cocoon cooking isprovided.
文摘A knowledge base system INCAP(Integration of Catalyst Activity Patterns)for selecting catalyst components has been developed by decomposing the catalyst designproblem into 5 easily solved sub-problems and by building up a weighted experimental es-timation model of catalytic activity for application of activity data.The INCAP was ap-plied to the design of catalysts for oxidative dehydrogenation of ethylbeneze and the re-sults are in agreement with the experimental ones.The characters of INCAP are analyzedfrom the view of design expert system.
文摘A real time concurrent product and process design system for mechanical parts is described in this paper. It consists of integrated product model, the expert system of product manufacturability evaluation and the controller of concurrent design. With the help of the controller of concurrent design, each feature of a part can be designed and evaluated based on manufacturing knowledge and resources, and can be modified according to the results of evaluation. The machining method of design feature can be selected based on manufacturing knowledge. So real time concurrent product and process design can be implemented based on integrated product model that is established based on generalized feature. Products and its design process can be optimized with the help of this system. The information and function integration of product design process can be realized. The time to market and the cost of products can be reduced.
文摘By use of the integrated knowledge of mineral engineering, mineral processing, expert system, artificial neural networks(ANN), genetic algorithm, fuzzy mathematics and multimedia technology etc., MPES(mineral processing expert system) skeletal tool has been built, which is a construction tool for expert systems in the field of mineral processing. This system is programmed by C ++ language on microsoft windows platform, including multiple knowledge and reasoning methods, and can be used to build new expert systems for ore beneficiability prediction, mill design, faults diagnosis, production control and management decision.
文摘At present, the main work of electron optical system CAD is solving equations and calculating mumerical values. However, the design perhaps needs more inference and expertise than numerical calculations because the structure of electron lens system is complicated. In this paper, a primary expert system is applied to design the electron lens system intelligently. This expert system is combined with SEU-3D program which is used to simulate the electron optical system to optimize the electron lens systems. In spite of this, the expert system which is established in this paper can also be used to diagnose the electron lens system. Although the knowledge base is small and rules are not abundant, this paper has used this system to obtain some very useful results. The initial success with this system suggests that further work need to be done whether more rules and knowledge will be added to extend the ability of expert system.
