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Papers

Upgrading a CAD System with Expert System

Upgrading a CAD System with Expert System

Year: 2002

Section: Design information systems & knowledge management

Editor: Marjanovic D.

Author: Kaiba, P.; Prebil, I.; Novak, A.

Section: Design information systems & knowledge management

Pages: 355-360

Abstract

The article describes an expert system which is fully adapted to computer aided development of products in mechanical engineering and is based upon feature technology. It supplements the features of commercial 3D modeller with semantical descriptions. We can prescribe qualitative constraints and the rules that, besides geometrical constraints, consider operating conditions, manufacturing technology, assembly, transportation, etc. Every attempted change, input by the designer, is first checked by the expert system. Considering the rules, contained in its knowledge base, it adapts the technical system in a way that it corresponds with the input change. The design procedure is therefore shorter and the designer can automate individual phases. The greatest effect can be observed in designing complex typified assemblies.

Keywords: computer aided design, expert systems, object databases, rotational connections, solid modelling

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