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Multi-dimensional non-linear acoustic wave propagation, part II: The non-linear interaction of an acoustic fluid and plate under harmonic excitation

✍ Scribed by J.H. Ginsberg

Publisher: Elsevier Science
Year: 1975
Tongue: English
Weight: 902 KB
Volume: 40
Category: Article
ISSN: 0022-460X
DOI: 10.1016/s0022-460x(75)81307-1

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✦ Synopsis

The non-linear interaction of a harmonically excited flat plate interfacing with an acoustic fluid is investigated by using the techniques developed in Part 1. The plate is infinitely long and is periodically supported, and the fluid is an inviscid perfect gas. In the analysis the non-linear terms arising from the equations of motion for the fluid and the plate, and also from the boundary conditions describing the interface, are fully treated. It is found that the non-Iinearities arising from the fluid do not affect the plate response. The non-linear acoustic waves show several strong differences from the predictions of linear theory, all attributable to the phenomenon of self-refraction.

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