The shaker test usually subjects the component to a higher vibration level than the actual environment. In most cases, this is a conservative and accepted test. This paper is to quantify the amount of conservatism for this type of single control shaker test. The subject under study is a generic heat pipe reservoir on a generic spacecraft radiator panel in an expendable launch vehicle. The acoustic-induced vibration and loads are predicted. These predictions are compared with the predicted and measured shaker excited responses. The comparison shows that the shaker test subjects the test article to a much more severe environment at its resonant frequencies. The amount of over-testing in acceleration and loads are calculated.


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    Title :

    Random vibration induced by acoustics and by shaker


    Contributors:
    Lee, Y.A. (author) / Hoskins, W. (author) / Lee, A.L. (author)


    Publication date :

    1997


    Size :

    8 Seiten, 6 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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