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Fundamental Study on Systematization of Mechanical Design and Manufacturing Knowledge

机械设计与制造知识系统化基础研究

基本信息

批准号：
04452126
负责人：
KIRIYAMA Takashi
金额：
$ 4.42万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (B)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1993
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04452126/
关键词：
knowledge design manufacturing systematization

项目摘要

In this research project, in the first place, we proposed categorization of ontologics of design knowledge representation. The ontology of knowledge representation means the framework defining how the real world is captured and represented. Since there are various ways of representing mechanical design knowledge, there exist different ontologies of knowledge representation. In this research, we proposed some dimensions of categorization of ontologies, that are, abstraction (how a matter in the real world is mapped into a conceptual space), approximation (how an abstract representation is simplified as another abstract representation), domain (areas knowledge covers such as dynamics and electronics), granularity (grain size of entities), and region (boundary of the focused part of the real world).In the second place, we have built a tool for collecting physical features. A physical feature is a piece of knowledge representing a physical phenomena and associated attributes. Knowledge about physical features is used for helping the designer in conceptual design by linking functions and structures. SYSFUND (System for Functional Design) the system we have built, stores knowledge about physical features and thus allow the designer to build a conceptual model of the design object.Lastly, we have developed a computer environment for sharing design knowledge. The database of physical feature becomes very large to cover a wide area of design knowledge, and it is necessary to share such knowledge to efficiently accumulate the knowledge about design. In this project we used an object-oriented database to store collected knowledge and distribute it to personal databases.

在本研究计画中，我们首先提出设计知识表示的本体分类法。知识表示的本体是指定义如何捕获和表示真实的世界的框架。由于机械设计知识的表示方法多种多样，因此存在不同的知识表示本体。在本研究中，我们提出了本体范畴化的几个维度，即抽象（真实的世界中的物质如何映射到概念空间），近似（一个抽象表示如何被简化为另一个抽象表示），域（知识涵盖的领域，如动力学和电子学），粒度（实体的粒度）和区域（真实的世界的聚焦部分的边界）。其次，我们建立了一个用于收集物理特征的工具。物理特征是表示物理现象和相关属性的知识片段。有关物理特征的知识用于帮助设计师在概念设计中将功能和结构联系起来。SYSFUND（System for Functional Design）是我们所建立的系统，它存储有关物理特征的知识，从而使设计人员能够建立设计对象的概念模型。最后，我们开发了一个共享设计知识的计算机环境。物理特征的数据库变得非常大以覆盖广泛的设计知识，并且有必要共享这些知识以有效地积累关于设计的知识。在这个项目中，我们使用了一个面向对象的数据库来存储收集到的知识，并将其分发到个人数据库。