AN ASSESSMENT OF THE EFFECTS OF IN-PLANE VIBRATIONS ON THE ENERGY FLOW BETWEEN COUPLED PLATES

Author: Bercin A.N.

Source: Journal of Sound and Vibration, Volume 191, Number 5, April 1996 , pp. 661-680(20)

Publisher: Academic Press

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Abstract:

The majority of the studies of energy transmission in plate-type structures are based on the assumption that the main component of the energy transfer is due to flexural waves, and the contribution of in-plane waves may be neglected. In this study a systematic assessment of the effects and importance of in-plane vibrations has been made by using the dynamic stiffness technique which yields "exact" results for a certain class of structures. The method is also used as a "bench-mark" to assess the predictions of the statistical energy analysis (S.E.A.) approach and the wave intensity analysis (W.I.A.) approach. It is shown that the exclusion of in-plane modes may lead to sizeable errors in energy predictions unless the structure is very simple.

Language: English

Document Type: Research article

Affiliations: Department of Mechanical Engineering, Kirikkale University, 71450 Kirikkale, Turkey:

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