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 article

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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
Publication statusPublished - Jan 1 1998
EventProceedings of the 1998 National Conference on Noise Control Engineering. Part 1 (of 3) - Ypsilanti, MI, USA
Duration: Apr 5 1998Apr 9 1998

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All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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