As a part of the continuing efforts to address automotive environmental issues, there has been a demand for technology to decrease the weight of the BIW (body in white) while not reducing safety or marketability. CAE (computer aided engineering), which is a core technology in the development of a lightweight BIW, together with improved computer performance, makes it possible to predict performance more accurately. This paper reports on the newly developed FE model creation technology that does not require CAD drawings, and on CAE technology that enables quick evaluation of frame static, dynamic and collision performance characteristics, using FE models created with the new method. Because this technology does not require CAD drawings, designers can quickly evaluate numerous ideas in FE models, enabling the creation of new frame structures. Comparison of analysis results with conventional high-accuracy large-scale models has confirmed correlation between the methods, and verified that it is possible to predict performance from the concept stage of BIW using the new technology. The following results were obtained through the development of CAE technology that uses concept modelling. Using drawing-free parametric model technology, it is possible to make CAE BIW performance predictions for side impact, eigenvalues, and stiffness, at the BIW concept stage before CAD drawings are created. A frame structure can then be made into a CAD drawing, having the performance predicted by CAE. By applying structural analysis at the same time as design studies, it is possible to make repeated performance analyses, with a variety of frame structure proposals concerning BIW structures which greatly affect vehicle development, leading to the appropriate frame structure.


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    Titel :

    Development of CAE technology applicable to the concept stage of BIW


    Weitere Titelangaben:

    CAE-Technologie für die Rohbau-Konzeptphase


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2004


    Format / Umfang :

    7 Seiten, 17 Bilder, 2 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch





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