Surface deflections have a great effect on the external appearance of automobiles. Usually, they are occurred on large flat panels containing sudden shape changes and of very small size about +/- 30-300 micrometer. Since the current numerical method is not sufficient for predicting these defects, the correction of these defects still depends on trial and error, which requires a great deal of time and expense. Consequently, developing the numerical method to predict and prevent these defects is very important for improving cosmetic surface qualities. In this study, an evaluation system that can analyze surface deflections using numerical simulation and a visualization system are reported. To calculate the surface deflections numerically, robust algorithms and simulation methodologies are suggested and to visualize them quantitatively, the curvature variation algorithm is proposed. To verify the developed systems, the experimental die of the handle portion of exterior door is analyzed. The results showed that the experimental and simulational visualization are in good agreement. The evaluation system proposed in this paper could be used to predict and minimize the occurrence of surface deflections in die manufacturing.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A numerical and experimental study of surface deflections in automobile exterior panels


    Beteiligte:
    Park, C.D. (Autor:in) / Chung, W.J. (Autor:in) / Kim, B.M. (Autor:in)


    Erscheinungsdatum :

    2007


    Format / Umfang :

    4 Seiten, 6 Bilder, 1 Tabelle, 6 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Plastics in automobile bumper systems and exterior panels

    Society of Automotive Engineers | TIBKAT | 1990



    Predicting Deflections in Concrete-Filled Grid Deck Panels

    Mangelsdorf, C. P. / Baker, Tod H. / Swanson, James A. | Transportation Research Record | 2002


    Thermoplastic exterior body panels

    Kapp,J.L. / Buick-Oldsmobile-Cadillac Group,General Motors,US | Kraftfahrwesen | 1989