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A hierarchical data scheme for feature-based design support

: Ovtcharova, J.

Verein Deutscher Ingenieure e.V. -VDI-, Düsseldorf; VDI-Gesellschaft Entwicklung, Konstruktion, Vertrieb -EKV-:
Datenverarbeitung in der Konstruktion '92. CAD und Informatik
Düsseldorf: VDI-Verlag, 1992 (VDI-Berichte 993.3)
ISBN: 3-18-093993-1
Book Article
Fraunhofer IGD ()
application; based; design; evaluation; feature; generic; geometric; shape

This paper proposes a data scheme for feature-based design consisting from four hierarchical levels. The top level reflects the designer's view on the application of a product part and consists of specifications of application features. At the second level, form features are usually defined as generic shape configurations which have no application-specific meaning and no presumptions to the kind of representation. The third level is concerned with the internal representation of form features in different ways and the fourth level - with their geometric evaluation using conventional geometric modeling techniques. The data relationships occurring in the scheme are performed by mappings in top-down and bottom-up fashion. (IGD)