Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    Eine Sprache für die featureorientierte Beschreibung und Verarbeitung von Produktgestaltungsinformationen
    ( 1992)
    Kramer, S.
    ;
    Rieger, E.
    For efficient computer aided design it is nessessary to provide an object oriented modelling environment. This requirement is fulfilled by using the feature approach. Features are intelligent design objects, including their shape and their functional and technological behaviour. A language has been developed to describe features in an object oriented manner. This language allows the description of all feature related information, including design rules and functional constraints. New features are generated in a graphical interactive environment. The resulting textual feature description is then interpreted during runtime, taking into account the current design state. The described feature modeller is part of an integrated system for product and process modelling.
  • Publication
    Featurebasierte Produktentwicklung
    ( 1992)
    Kramer, S.
    ;
    Rieger, E.
    ;
    Krause, F.-L.
    Feature modelling systems serve for the integrated processing of geometric, technological and functional information during design. They enable the designer to work with design elements he is accustomed to. Information contained in the feature model can be accessed and processed by other phases involved in the product development. This article describes a feature modelling system and the resulting design environment.
  • Publication
    PDGL - A language for efficient feature based product gestaltung
    ( 1991)
    Kramer, S.
    ;
    Rieger, E.
    ;
    Krause, F.-L.
    For high level and efficient computer aided design it is necessary to provide the possibility of object oriented modeling. A language has been developed to describe features in an object oriented manner including their technological semantics. The resulting generic feature templates are interpreted by the modeling system during runtime. Therefore the specific feature takes the actual design into account. By computing derivable parameters automatically, integrating related standard tables and by regarding design rules, features behave according to their associated semantics. During product gestaltung with features, the user works in his semantical environment and not only with geometric primitives. The concept for the feature design language as well as some examples demonstrating the advantages of the concept are presented.