Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    Conceptual modelling for industrial design
    ( 1995)
    Krause, F.-L.
    ;
    Lüddemann, J.
    ;
    Striepe, A.
    Conceptual product data in packages, digital mockups or layout plans are the basis for designing the shape of a product. A system approach is presented which allows for the incorporation of these restrictive data in an appropriate manner for computer-aided styling tasks. The highly interactive and easy-to-use system components support the abstraction, midification and verification of conceptual data for preparation as well as the creative and intuitive modelling of three dimensional shapes. Characteristic of the new modelling approach is the strong analogy with the traditional. still predominant clay modelling process in the field of industrial design.
  • Publication
    Design - an integrated approach
    ( 1990)
    Peters, J.
    ;
    Leuven, K.U.
    ;
    Ageman, E.
    ;
    Krause, F.-L.
    In a first part design is situated as an activity which integrates four domains: the customer's domain, the fuctional one, the product and the process domains. Two phases are distinguished: the creative and the analytic one. Successively following aspects are dicussed: Geometric Modelling, Inferfacing Product Modelling, Features, Simulation and System Architecture.
  • Publication
    A system architecture for parallel geometric modelling
    ( 1990)
    Hayka, H.
    ;
    Krause, F.-L.
    ;
    Münke, M.
    Methods to increase the performance of advanced CAD systems, especially of geometric modellers, by parallel processing are represented in this paper. First, the exploration of parallelism in geometric modellers and the organization of the parallel processing are shown. Apart from that, it is hinted at the great portion of time for accessing model data and handling its structure-information. In this context a functional unit for parallel handling of model accesses is sketched out. Finally, the hardware architecture is described.
  • Publication
    Wissensbasierte Rekonstruktion von Volumenmodellen
    ( 1990)
    Spur, G.
    ;
    Schiller, U.
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    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.