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Research Initiation: A Coupled Design-by-Features with Features Abstraction Approach for Simultaneous Product and Process Design

研究启动：用于产品和工艺同步设计的耦合特征设计与特征抽象方法

基本信息

批准号：
9410359
负责人：
Rajit Gadh
金额：
$ 10万
依托单位：
University of Wisconsin-Madison
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
1994
资助国家：
美国
起止时间：
1994-09-01 至 1997-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9410359&HistoricalAwards=false
关键词：
Research Initiation Coupled Design Features

项目摘要

9410359 Gadh The long-term goal of the current research is to develop a fundamentally new approach to computer-aided geometric design which integrates a features-based design approach with feature abstraction from boundary representation surface or solid models. The focus of this research activity is on the determination of features generated in a design-by-features/loops environment. The features-based design approach in the current research uses an abstract geometric entity called a loop; features are defined in terms of loops. A designer may design in terms of high- level features such as the rib or boss, and subsequently, may modify features by modifying loops. The loop provides the designer the flexibility to generate creative designs thus providing a function that is lacking in existing design-by-features approaches. Whether designing by features or by loops, new features - that are not intentionally created - get formed. These features often affect issues such as manufacturability, assemblability etc. These features are determined via a set of loop mappings (or feature mappings). Determination of these mappings and their completeness are studied in this research. A computer implementation of these mappings is performed and verified by industry experts.

9410359 GADH当前研究的长期目标是开发一种全新的计算机辅助几何设计方法，它将基于特征的设计方法与从边界表示、曲面或实体模型中提取特征相结合。这项研究活动的重点是确定在按特征/回路设计环境中生成的特征。目前研究中的基于特征的设计方法使用一种称为环的抽象几何实体；特征是以环的形式定义的。设计者可以根据诸如加强筋或凸台的高级特征进行设计，并且随后可以通过修改环来修改特征。循环为设计者提供了生成创造性设计的灵活性，从而提供了现有的按特征设计方法所缺乏的功能。无论是按特征还是按回路设计，都会形成非故意创建的新特征。这些特征通常会影响可制造性、可装配性等问题。这些特征是通过一组循环映射(或特征映射)确定的。本文研究了这些映射的确定及其完备性。这些映射的计算机实现由行业专家执行和验证。