Kessissoglou, Nicole J., and Pan, Jie (2000) The effect of structural coincidences on the acoustic fields radiated from a ribbed plate under light fluid-loading. International Journal of Acoustics and Vibration, 5 (1). pp. 15-22.

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Abstract

In this paper, the acoustic fields radiated from a ribbed plate under light fluid-loading are examined. In the ribbed plate system, the reinforcing beam affects both the propagation of the flexural waves in the plate, as well as the sound radiation from the structure. A subsonic incident flexural wave in the plate impinging on the beam discontinuity generates transmitted and reflected propagating waves, and transmitted and reflected near-field waves in the plate. The scattering of the structural wave field gives rise to supersonic wave number components of the plate vibration, which subsequently leads to sound radiation into the surrounding fluid field. Two structural coincidence conditions have been identified in this paper. Physically, they correspond to the optimal trace wave matching between the flexural waves in the plate and the flexural and torsional waves in the beam. This paper reports for the first time a new observation concerning the characteristics of the radiating sound fields that occur because of structural coincidence conditions.

Item ID:	13033
Item Type:	Article (Research - C1)
ISSN:	1027-5851
Keywords:	acoustic Waves; acoustics; structural dynamics
Related URLs:	Publisher
Date Deposited:	19 Jul 2013 03:23
FoR Codes:	09 ENGINEERING > 0913 Mechanical Engineering > 091399 Mechanical Engineering not elsewhere classified @ 100%
SEO Codes:	97 EXPANDING KNOWLEDGE @ 100%
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