Engineering structural design requires many simulations of the structural system after modifications are made to the initial structure. The computational cost of these repetitive simulations can be prohibitive in many engineering applications, such as optimization, reliability analysis, and so forth. In this work, the successive matrix inversion method is improved to include the capability to update not only the inverse of the modified stiffness matrix, but also the modified system response vector. This is done by introducing an influence vector storage matrix and a vector-updating operator that makes it possible to perform sequential reanalyses. The improved successive matrix inversion method has a wider applicable range of modification than the original method. The applicability of the proposed successive matrix inversion method is demonstrated with two popular engineering problems: sensitivity analysis and reliability analysis of an aircraft wing structure.


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    Title :

    Efficient successive reanalysis technique for engineering structures


    Additional title:

    Effiziente sukzessive Analyse schrittweise modifizierter Tragwerke


    Contributors:

    Published in:

    AIAA Journal (online) ; 44 , 8 ; 1883-1889


    Publication date :

    2006


    Size :

    7 Seiten, 7 Bilder, 17 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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