An iterative algorithm of component mode synthesis for a rational reduced-order modeling is proposed. The present algorithm consists of three steps: initial mode selection with a priori criterion, model reduction using the selected modes, and a posteriori error evaluation. The algorithm is based on the Craig–Bampton method, which is one of the most widely used techniques. Specifically, the present algorithm uses, in a judicious manner, both an a priori mode selection criterion employing the moment-matching strategy and an a posteriori error estimation technique in evaluating the relative eigenvalue errors. If desired, an optional step of boundary interface reduction offers an additional possibility of obtaining a more compact model. The proposed iterative algorithm is recommended to researchers as well as commercialized software users in developing linear reduced-order structural dynamics models. Numerical examples are presented for its practical usage and performance.


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    Title :

    Iterative Component Mode Synthesis Using a Priori and a Posteriori Criteria


    Contributors:
    Kim, Soo Min (author) / Kim, Jin-Gyun (author) / Park, K. C. (author) / Chae, Soo-Won (author)

    Published in:

    AIAA Journal ; 57 , 5 ; 2145-2157


    Publication date :

    2019-03-29


    Size :

    13 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English