In conducting multidisciplinary structural optimization, there is uncertainty and randomness in he input information of finite element models, material properties, and boundary conditions. Because of the stringent performance requirements on the missions of modern aircraft, there is a need for reducing the structural failure probability due to uncertainties by conducting stochastic analysis instead of a deterministic approach. This paper presents a strategy for conducting such an analysis in a widely used structural analysis and optimization program ASTROS. The execution control sequence of ASTROS is modified and reliability analysis modules are incorporated for analysis and multidisciplinary optimization. The implementation and modification of ASTROS for incorporating the random nature of input information is demonstrated through truss and wing structure examples.


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    Titel :

    ASTROS for reliability-based multidisciplinary structural analysis and optimization


    Weitere Titelangaben:

    Einsatz von ASTROS zur zuverlässigkeitsbasierten multidisziplinären Strukturanalyse und Optimierung


    Beteiligte:
    Luo, Xiaodong (Autor:in) / Grandhi, R.V. (Autor:in)


    Erscheinungsdatum :

    1995


    Format / Umfang :

    10 Seiten, 5 Bilder, 4 Tabellen, 14 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Astros for Reliability-Based Multidisciplinary Structural Analysis and Optimization

    Luo, X. / Grandhi, R. / American Institute of Aeronautics and Astronautics| ASME| ASCE | British Library Conference Proceedings | 1995


    ASTROS - A multidisciplinary automated structural design tool

    NEILL, D. / JOHNSON, E. / CANFIELD, R. | AIAA | 1987


    ASTROS - A multidisciplinary automated structural design tool

    NEILL, D. J. / JOHNSON, E. H. / CANFIELD, R. | AIAA | 1990


    MIDAS: Multidisciplinary Interactive Design and Analysis System-Integration of ASTROS and I-DEAS

    Luo, X. / Rajagopalan, S. / Grandhi, R. et al. | British Library Conference Proceedings | 1996