Results 21 to 30 of about 101,890 (261)
Noise generation in the solid Earth, oceans, and atmosphere, from non-linear interacting surface gravity waves in finite depth [PDF]
, 2012 Oceanic pressure measurements, even in very deep water, and atmospheric pressure or seismic records, from anywhere on Earth, contain noise with dominant periods between 3 and 10 seconds, that is believed to be excited by ocean surface gravity waves. Most
Ardhuin, Fabrice, Herbers, Thomas H. C.
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Journal of the Mechanical Behavior of Materials, 2014 In this study, the coupled effects of gravity and nonhomogeneity on Rayleigh waves in an anisotropic layer placed over an isotropic viscoelastic half-space of higher order are discussed. The dispersion properties of waves are derived.
Kakar Rajneesh
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Rayleigh wave nonlinearity [PDF]
The Journal of the Acoustical Society of America, 1993 The elastic nonlinearity in Rayleigh waves is investigated theoretically. Studies have revealed that nonlinearity in Rayleigh waves involves nonlocal as well as local effects [Parker and Talbot, J. Elast. 15, 389 (1985)]. Finite amplitude effects on sound in fluids are entirely local, and the effects on different wavelets are therefore independent.
Mark F. Hamilton +2 more
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Non-Hamiltonian features of a classical pilot-wave dynamics [PDF]
, 2014 A bouncing droplet on a vibrated bath can couple to the waves it generates, so that it becomes a propagative walker. Its propulsion at constant velocity means that a balance exists between the permanent input of energy provided by the vibration and the ...
Labousse, Matthieu, Perrard, Stéphane
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Shear wave generation using a spiral electromagnetic acoustic transducer [PDF]
, 2006 A spiral electromagnetic acoustic transducer (EMAT) is efficient in eddy current generation and has been used for surface defect inspection using Rayleigh waves or thickness gauging based on plane waves in echo mode.
Baillie, Iain +5 more
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Magnetoelastic Rayleigh wave convolver
Applied Physics Letters, 1975 An epoxy−bonded LiNbO3−YIG−LiNbO3 composite structure has been constructed and operated as a magnetoelastic Rayleigh wave convolver with 50−MHz input signals. The acoustic signals were propagated on a (110) YIG surface and the convolution characteristics were studied as a function of the magnitude and direction of the applied magnetic field. Nonuniform
Robbins, William P., Lundstrom, Mark S
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International Journal of Mathematics and Mathematical Sciences, 2005 The effect of the temperature and initial hydrostatic stress has been shown on the propagation of Rayleigh waves in a viscoelastic half-space. It has been explained how the velocity of Rayleigh waves depends not only on the parameters pertaining to ...
Sushil Kumar Addy, Nil Ratan Chakraborty
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Lamb wave near field enhancements for surface breaking defects in plates [PDF]
, 2012 Near field surface wave ultrasonic enhancements have previously been used to detect surface breaking defects in thick samples using Rayleigh waves. Here, we present analogous surface wave enhancements for Lamb waves propagating in plates.
Clough, A. R. +1 more
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Vietnam Journal of Mechanics, 2019 This study is devoted to investigate the propagation of Rayleigh-type waves in transversely isotropic nonlocal piezoelastic half-space. When the stress-free boundary is maintained at charge-free condition, the dispersion equation for the propagation of
Do Xuan Tung
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Modeling linear Rayleigh wave sound fields generated by angle beam wedge transducers
AIP Advances, 2017 In this study, the reciprocity theorem for elastodynamics is transformed into integral representations, and the fundamental solutions of wave motion equations are obtained using Green’s function method that yields the integral expressions of sound beams ...
Shuzeng Zhang +3 more
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