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Proceedings Paper

Structural intensity measurements using 25-Hz TV-holography recording
Author(s): Jean Pierre Chambard; Vincent Chalvidan; Xavier Carniel; Jean-Claude Pascal
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Paper Abstract

Structural intensity is a powerful tool which give transfer path of the vibration energy within a structure. Additional data processing allows then to localize sources and sinks of that energy. The measurement of these quantities is possible using classical means (accelerometers, stress gauges, ...) but the data processing is complex and require a lot of accurate sensors because it is based on spatial derivatives of high order. The optical techniques (laser vibrometry, holography, ...) are more suited for that purpose because of the high density of measuring points and because of the well-known advantages of these methods: reduced measurement time and no modification of the mass parameters of the structure as it is the case when using contact sensors.

Paper Details

Date Published: 22 May 2000
PDF: 10 pages
Proc. SPIE 4072, Fourth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (22 May 2000); doi: 10.1117/12.386735
Show Author Affiliations
Jean Pierre Chambard, HOLO 3 (France)
Vincent Chalvidan, HOLO 3 (France)
Xavier Carniel, Ctr. Technique des Industries Mecaniques (France)
Jean-Claude Pascal, Univ. du Maine (France)


Published in SPIE Proceedings Vol. 4072:
Fourth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications
Enrico Primo Tomasini, Editor(s)

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