Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    System architecture for flexible integration of product gestaltung
    ( 1990)
    Major, F.
    ;
    Bienert, M.
    ;
    Jansen, H.
    ;
    Krause, F.-L.
    Product gestaltung is a complex task which is dependent on the product and related processes. An increasing need for dedicated application systems can be recognized in industry in order to enable the computer integration of the factory. The paper describes three approaches for system architectures to fulfill the demand for flexible integration.
  • Publication
    Wissensbasierte Rekonstruktion von Volumenmodellen
    ( 1990)
    Spur, G.
    ;
    Schiller, U.
    ;
    Timmermann, M.
    ;
    Jansen, H.
    ;
    Krause, F.-L.
    Limited system consistency in handling 2-D and 3-D modelers is among the serious critical aspects of modern-day CAD systems. The reconstruction method enables straightforward and familiar 2-D input methods for orthogonal views to be conveniently interlinked with the well-known virtues of solid modelling. One problem associated with his technique is, however, the unavoidable generation of excess 3-D elements resulting from projections and only barely identifiable using algorithmic techniques. An approach is described which, with the aid of knowledge-based methods, enables a far-reaching automatic reconstruction of volume models and thus helps to reduce the problem of generating inconsistent models.
  • Publication
    Advanced geometric modelling for engineering applications
    ( 1990)
    Jansen, H.
    ;
    Krause, F.-L.
    Future generations of CAD systems are expected to offer powerful support for the functional, geometrical and technological description of products. New intelligent simulation techniques, as well as comprehensive information access capabilties will open novel and comfortabel possibilities for product modelling. Subsequently, the result will be a real chance for direct cooperation of human creativity and discernment with artificial abilities of information processing systems to draft analyze technical products. Owing to the availability of novel resources the scope of computer supported actions will increase. Integration of design and technological planning will be possible in future.
  • Publication
    Automatic scanning and interpretation of engineering drawings
    ( 1989)
    Großmann, G.
    ;
    Jansen, H.
    ;
    Krause, F.-L.
    Successful future product development will be closely connected to an effective way of using CAD-facilities integrated in a CIM-environment. The integration aspect cannot be seen without concentrating on information processing and information acquisition problems. Todays CAD-systems do not provide possibilities for automatic capture of engineering drawing information. The increasing amount of existing engineering drawings - which in large part contain companies' know how - cannot be modified or accessed by CAD-systems, but may not be neglected in design processes using CAD-systems: Therefore, a real demand for convenient conversion methodes for engineering drawings can be stated. In this paper actual and new possibilities for the automated conversion of engineering drawings into CAD-models are discussed. After a global description of the conversion process, problems as well as existing and future solutions of processing substeps are explained in detail. The structure in principal and c omponents of conversion systems are described. The paper closes with an outlook on future trends and improvements using special hardware, parallel processing features and knowledge based methodes.