| ZJCADS中知识库设计的基本模式和关键技术 |
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| 引用本文： | 周济,孟炜,朱彦正.ZJCADS中知识库设计的基本模式和关键技术[J].华中科技大学学报(自然科学版),1989(2). |
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| 作者姓名： | 周济 孟炜 朱彦正 |
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| 作者单位： | 华中理工大学机械工程一系
(周济)，洛阳拖拉机制造厂
(孟炜)，洛阳拖拉机制造厂(朱彦正) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 本文结合组合机床夹具智能CAD系统(ZJCADS)中知识库设计研究的与实践,讨论了机械设计专家系统中知识库设计的基本模式和关键技术,其中包括设计知识的获取、设计知识的表示方法、知识模式的规范化、规则集合的管理和维护等内容。
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| 关 键 词： | 专家系统 知识库 知识获取 知识表示 知识模式规范 机械设计 |
Structure Pattern and Key Techniques of the Knowledge Base Design in ZJCADS System |
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| Zhou Ji Meng Wei Zhu Yanzheng.Structure Pattern and Key Techniques of the Knowledge Base Design in ZJCADS System[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1989(2). |
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| Authors: | Zhou Ji Meng Wei Zhu Yanzheng |
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| Institution: | Zhou Ji Meng Wei Zhu Yanzheng |
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| Abstract: | The knowledge base design is the crux in building an expert system. Based on practical experience gained in the development of a CAD system (ZJCADS) for the modular machine tool fixture, the structure pattern and key techniques of the knowledge base design including the acquisition and representation of the design knowledge, the setting up of the rule base and the maintenance tool for the knowledge base are investigated. The representation methods for the nested conjunctive list, the productive rule and the frame technology as well as their programming to be adopted jointly in ZJCADS for the representation of the fixture design knowledge are discussed. The key techniques for building the rule base, such as the normalization of the design knowledge, the hierarchical model of design states, the extraction of the rules, the principle for the rule classification and the rule management by frame technology, are also discussed in detail. |
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| Keywords: | Expert system Knowledge base Acquisition of knowledge Representa-tion of knowledge Normalization of knowledge Mechanical design |
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