Product information representation for feature conversion and implementation of group technology automated coding

A. J. Medland; Guowang Zhu; Jian Gao; Jian Sun

doi:10.1117/12.235551

22 March 1996 Product information representation for feature conversion and implementation of group technology automated coding

A. J. Medland, Guowang Zhu, Jian Gao, Jian Sun

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Proceedings Volume 2644, Fourth International Conference on Computer-Aided Design and Computer Graphics; (1996) https://doi.org/10.1117/12.235551
Event: Fourth International Conference on Computer-Aided Design and Computer Graphics, 1995, Wuhan, China

Abstract

Feature conversion, also called feature transformation and feature mapping, is defined as the process of converting features from one view of an object to another view of the object. In a relatively simple implementation, for each application the design features are automatically converted into features specific for that application. All modifications have to be made via the design features. This is the approach that has attracted most attention until now. In the ideal situation, however, conversions directly from application views to the design view, and to other applications views, are also possible. In this paper, some difficulties faced in feature conversion are discussed. A new representation scheme of feature-based parts models has been proposed for the purpose of one-way feature conversion. The parts models consist of five different levels of abstraction, extending from an assembly level and its attributes, single parts and their attributes, single features and their attributes, one containing the geometric reference element and finally one for detailed geometry. One implementation of feature conversion for rotational components within GT (Group Technology) has already been undertaken using an automated coding procedure operating on a design-feature database. This database has been generated by a feature-based design system, and the GT coding scheme used in this paper is a specific scheme created for a textile machine manufacturing plant. Such feature conversion techniques presented here are only in their early stages of development and further research is underway.

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A. J. Medland, Guowang Zhu, Jian Gao, and Jian Sun "Product information representation for feature conversion and implementation of group technology automated coding", Proc. SPIE 2644, Fourth International Conference on Computer-Aided Design and Computer Graphics, (22 March 1996); https://doi.org/10.1117/12.235551

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KEYWORDS

Solids

Tolerancing

Computer aided design

Data modeling

Manufacturing

Systems modeling

Data conversion

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