The Stoneley type waves are known to propagate along free edges of fluid loaded elastic plates [1], [2], [3]. In the case of a plate cut by a straight line two edge waves can be possible. One is symmetric and the other is anti-symmetric in the cross-section orthogonal to the cut. It is shown in [4] that the symmetric wave exists at any frequency and for any parameters of the plate and fluid. The anti-symmetric edge wave on the contrary exists only in some frequency range.
In this paper the effects that regulate the existence or nonexistence of the anti-symmetric edge wave are analyzed and the energy characteristics of edge waves are studied.
References
1.
KonenkovYu.K.“On flexural wave of Rayleigh type”, Akust. zh., 1960, 6(2), in Russian.
2.
ThurstonR.N.McKennaJ.“Flexural acoustic waves along the edge of a plate”, IEEE Trans. on Sonics and Ultrasonics, 1974, 21, pp. 296–297.
3.
NorrisA.N.“Flexural edge waves”, Journal of Sound and Vibration, 1994, 171(4). pp. 571–573.
4.
AndronovI.V.“Waves propagating along a narrow crack in an elastic plate”, Proc. of the 5–th International Conf. Mathematical and Numerical Aspects of Wave Propagation, Santiago de Compostella, Spain, July 10–14, 2000, pp. 103–107.
5.
KouzovD.P.Luk'yanovV.D.“Waves propagating along edges of plates”, Akust. zh., 1972, 18(4). pp. 549–555, in Russian. translation: Sov. Phys. Acoust., 1973, 18(4). pp. 456–459.
6.
BelinskiyB.P.KouzovD.P.“Optical theorem for a plate-fluid system”, Akust. zh., 1980, 26(1). pp. 13–19, in Russian. translation: Sov. Phys. Acoust., 1980, 26(1). pp. 8–11.
7.
VeshevV.A.KlyukinI.I.KouzovD.P.LukyanovV.D.“Propagation of vibrational energy in thin elastic plate of constant width”, Akust. zh., 1977, 23(2). pp. 228–233, in Russian. translation: Sov. Phys. Acoust., 1977, 23(2). pp. 129–132.
8.
KouzovD.P.“Diffraction of plane hydroacoustic wave by a crack in an elastic plate”, PMM USSR, 1963, 27(6). pp. 1037–1043, in Russian. translation: J. of Appl. Maths. Mechs.
