In-situ estimation of structural power transmission from machinery source installations

Mogens Ohlrich

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    There is continued work on developing methods for characterising structureborne sound sources and for predicting the transmission of structural power into source foundations and receiving structures. However, at present there is no agreed measurement method by which such transmission predictions are assessed and validated. This fundamental problem is addressed herein and a reference method is proposed for measuring power transmission ‘in-situ'. The method is founded on a relatively simple structural power calibration of the source environment (receiving structure), which is done before the source is installed. Moreover, it is shown that an approximate transmission estimate can be obtained with the source presence, provided that either the source or receiver mobility is known a priori for a single mounting terminal. This is tested for a number of complex source-receiver arrangements and the frequency range of validity of such estimates is revealed by comparison with the unbiased reference method.
    Original languageEnglish
    Title of host publicationProceedings of the Sixth International Congress on Sound and Vibration
    Place of PublicationAuburn, AL
    PublisherThe International Inatitute of Acoustics and Vibration
    Publication date1999
    Pages2149-2160
    Publication statusPublished - 1999
    Event6th International Congress on Sound and Vibration - Kgs. Lyngby, Denmark
    Duration: 5 Jul 19998 Jul 1999
    Conference number: 6

    Conference

    Conference6th International Congress on Sound and Vibration
    Number6
    CountryDenmark
    CityKgs. Lyngby
    Period05/07/199908/07/1999

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