Comparison of experimental and finite element structural intensities on an aluminum ribbed panel

Richard P. Szwerc, Stephen A. Hambric, Mathew J. Erickson

    Research output: Contribution to journalConference articlepeer-review

    2 Scopus citations

    Abstract

    The bending, shearing and torsional components of structural intensity on a vibrating Al ribbed panel were determined experimentally using 9 point finite difference approximations and velocity data obtained with a scanning laser vibrometer. Considering both active and reactive intensities at a global plate mode, the experimental fields were compared with finite element results generated with NASTRAN and McPOW. The reactive intensities compared very well, while active intensities were reasonable. Difference between measurements and finite element data are observed and are likely due to measurement difficulties due to high reverberation levels and the inclusions of near field contributions about the ribs and powers within the ribs themselves.

    Original languageEnglish (US)
    Pages (from-to)359-364
    Number of pages6
    JournalProceedings - National Conference on Noise Control Engineering
    StatePublished - 1998
    EventProceedings of the 1998 National Conference on Noise Control Engineering. Part 1 (of 3) - Ypsilanti, MI, USA
    Duration: Apr 5 1998Apr 9 1998

    All Science Journal Classification (ASJC) codes

    • Acoustics and Ultrasonics

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