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Diffraction of a short wave at the junction between two plates, one of which is reinforced by ribs

✍ Scribed by A.V Badanin

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 431 KB
Volume: 61
Category: Article
ISSN: 0021-8928
DOI: 10.1016/s0021-8928(97)00028-2

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✦ Synopsis

The two-dimensional problem of the dittraction of a plane hydroacoustic wave at the junction between two elastic plates is considered. One of the plates is uniform and the other is reinforced with a periodic set of uniform stiffeners. The plates are joined in such a way that together they form a plane which splits the space into two subspaces. An acoustic medium fills one of these half-spaces. It is assumed that one cannot ignore reflection from the surface of the stiffeners nor neglect their moment impedance. The conditions at the junction of the plates is not completely fixed, i.e. the general solution of the problem is investigated. A modified stationary-phase method is used to investigate the solution obtained and enables the asymptotic forms of the field in the neighbourhood of particular directions to be obtained.

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