A comparison of the performance of modern modal data analysis methods on test data from the Voyager Jupiter/Saturn payload is presented. Four different test/data-analysis combinations are compared - multiple-point sine excitation tests, single-point random-excitation tests using two different techniques of manipulating Fourier transform data, and a time-domain method for analyzing random data. Results indicate that all four methods can give comparable results. Of the four, the time-domain approach detects more modes in the test data and, at the same time, shows the greatest promise for reducing the time and cost of modal testing.


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    Title :

    Comparison of modal test methods on the Voyager payload


    Contributors:
    Hanks, B. R. (author) / Miserentino, R. (author) / Ibrahim, S. R. (author) / Lee, S. H. (author) / Wada, B. K. (author)

    Conference:

    Society of Automotive Engineers, Aerospace Meeting ; 1978 ; San Diego, CA


    Publication date :

    1978-11-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Comparison of Modal Test Methods on the Voyager Payload

    Wada, B. K. / Hanks, B. R. / Miserentino, R. et al. | SAE Technical Papers | 1978



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