Measurement-based determination of the irrotational part of the structural intensity by means of test functional series expansion

Abstract : The irrotational part of the structural intensity for flexural wave motion in plate-like structures is calculated from measurement data of kinematic quantities, such as out-of-plane velocities, by a new method that makes use of a test functional series expansion. The computation of the structural intensity and its irrotational part, which allows to effectively assess vibrational sources and sinks, is less sensitive to measurement noise as compared to standard approaches.
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https://hal.archives-ouvertes.fr/hal-02111806
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Submitted on : Friday, April 26, 2019 - 11:36:44 AM
Last modification on : Wednesday, November 20, 2019 - 8:19:26 AM

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N.B. Roozen, J.L. Guyader, C. Glorieux. Measurement-based determination of the irrotational part of the structural intensity by means of test functional series expansion. Journal of Sound and Vibration, Elsevier, 2015, 356, pp.168-180. ⟨10.1016/j.jsv.2015.06.040⟩. ⟨hal-02111806⟩

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