For large, complex spacecraft structural systems, the objectives of the modal test are outlined. Based on these objectives, the comparison criteria for the modal test methods, namely, the broadband excitation and the sine dwell methods are established. Using the Galileo spacecraft modal test and the Centaur G Prime upper-stage vehicle modal test as examples, the relative advantage or disadvantage of each of these methods is examined. The usefulness or shortcoming of the methods is given from a practicing engineer's view point.


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    Titel :

    Sine dwell or broadband methods for modal testing


    Weitere Titelangaben:

    Sinusverzoegerungs- oder Breitbandmethoden fuer Modaltests


    Beteiligte:
    Chen, J.C. (Autor:in) / Wada, B.K. (Autor:in)

    Erschienen in:

    AIAA Journal ; 26 , 6 ; 733-737


    Erscheinungsdatum :

    1988


    Format / Umfang :

    5 Seiten, 4 Bilder, 6 Tabellen, 11 Quellen



    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Sine dwell or broadband methods for modal testing

    Chen, Jay-Chung / Wada, Ben K. | NTRS | 1988


    Sine dwell or broadband methods for modal testing

    CHEN, JAY-CHUNG / WADA, BEN K. | AIAA | 1988


    On sine dwell or broadband methods for modal testing

    CHEN, JAY-CHUNG / WADA, BEN | AIAA | 1987



    An automated tuning and data collection system for sine dwell modal testing

    HUNT, D. / MATTHEWS, J. / WILLIAMS, R. | AIAA | 1984