Download or read book Problems in Nonlinear Acoustics Rayleigh Waves Pulsed Sound Beams and Waveguides written by and published by . This book was released on 1993 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three project topics, all in the area of nonlinear acoustics, are discussed in this annual summary report: (1) Nonlinear Rayleigh Waves (including diffraction effects in Rayleigh wave beams, local and nonlocal nonlinearity in Rayleigh waves, pulsed nonlinear Rayleigh waves, and nonlinear Stoneley waves); (2) Pulsed Finite Amplitude Sound Beams (including a uniformly valid axial solution for self-demodulation, and measurements of pulsed sound beams in water) ; and (3) Finite Amplitude Sound in Waveguides.

Download or read book Problems in Nonlinear Acoustics written by Mark F. Hamilton and published by . This book was released on 1992 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Problems in Nonlinear Acoustics Pulsed Finite Amplitude Sound Beams Nonlinear Propagation of Sound in Layered Media Time Domain Solutions for Focused Sound Beams Focusing of Sound with an Ellipsoidal Mirror and Modeling Finite Amplitude Propagation in Waveguides written by and published by . This book was released on 1991 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Five projects are discussed in this annual summary report, all of which involve basic research in physical acoustics, mainly nonlinear acoustics. (1) Pulsed Finite Amplitude Sound Beams are investigated numerically with a time domain computer algorithm, and experiments are underway to study nonlinear self- demodulation. (2) Nonlinear Propagation of Sound in Layered Media involves studies of shallow water above a penetrable bottom (both theory and experiment) and the SOFAR channel (only theory). (3) Time Domain Solutions for Axial Pressures in Focused Sound Beams is a theoretical comparison of three different models. (4) Focusing of Sound with an Ellipsoidal Mirror is a theoretical study of the reflected field, typically short pulses, along the axis of the mirror. (5) Modeling Finite Amplitude, Propagation in Waveguides with a Nonlinear Parabolic Wave Equation is a new project that involves both theory and experiment.

Download or read book Nonlinear Wave Processes in Acoustics written by K. Naugolnykh and published by Cambridge University Press. This book was released on 1998-05-28 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text considers models of different "acoustic" media as well as equations and behavior of finite-amplitude waves. It also considers the effects of nonlinearity, dissipation, dispersion, and for two- and three-dimensional problems, reflection and diffraction on the evolution and interaction of acoustic beams.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Problems in Nonlinear Acoustics Surface Acoustic Waves Diffracting Sound Beams and Fluid Solid Interface Effects written by Mark F. Hamilton and published by . This book was released on 1994 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three subject areas, with emphasis on nonlinear acoustics, are discussed in this annual summary report: (1) Surface Acoustic Waves (evolution equations, generalized model equations for complex space-time dependencies, and nonlinearity coefficients for Rayleigh waves, and model equation for Stoneley waves); (2) Diffracting Sound Beams (modeling of noise and relaxation, measurements of focused beams, and transient solution for radiation from a parabolic antenna); and (3) Fluid-Solid Interface Effects (comparisons of 2-D and 3-D reflection for piston and Gaussian sources).

Download or read book Nonlinear Acoustics written by Robert Thomas Beyer and published by . This book was released on 1975 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: CONTENTS: Introduction -- The Nature of Nonlinear Acoustics, Historical Aspects; Principles of Linear Acoustics; Some Sources of Nonlinear Oscillations; Nonlinear Propagation in Fluids; Shock Waves; Aeroacoustics; Radiation Pressure; Streaming; Cavitation; Nonlinear Interaction of Sound Waves; Applications of Nonlinear Interactions. The Parametric Array; Nonlinear Propagation in Solids.

Download or read book Nonlinear Acoustics written by K.A. Naugol'nikh and published by Springer Science & Business Media. This book was released on 1997-05-08 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Market: Acousticians, research scientists, instructors, and graduate and advanced undergraduate students in nonlinear acoustics. This book contains a collection of papers by authors of the Former Soviet Union. The topics covered are media with "structural" nonlinearities, optical generation of sound, acoustic beat-wave interactions, acoustic shock waves, thermal self-focusing of acoustic waves, solitons, statistical nonlinear acoustics, media with relaxation and oscillatory degrees of freedom, parametric arrays, and fluid cavitation.

Download or read book Problems in Nonlinear Acoustics Scattering of Sound by Sound Parametric Arrays Focused Sound Beams and Noncollinear Tone Noise Interactions written by Mark F. Hamilton and published by . This book was released on 1988 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Five projects are discussed involving nonlinear acoustics. (1) Scattering of Sound by Sound, a theoretical study of two noncollinear Gaussian beams which interact to produce sum and difference frequency sound. (2) Parametric Receiving Arrays, a theoretical and numerical study of parametric reception in a reverberant environment. (3) Noncollinear Interaction of a Tone with Noise, an experimental investigation of the nonlinear interaction which occurs when the two waves propagate in different modes of a rectangular duct. (4) Nonlinear Effects in Focused Sound Beams, a preliminary analytical study of harmonic generation in the focal region. (5) Parametric Ultrasonic Proximity Sensor, a numerical investigation into the use of a parametric array as an ultrasonic proximity sensor in air. Keywords: Nonlinear acoustics; Parametric array; Acoustic arrays; Scattering of sound by sound; Focused sound; Waveguide; Noise. (JHD).

Download or read book Problems in Nonlinear Acoustics Surface Acoustic Waves Nondestructive Testing and Acoustic Streaming written by and published by . This book was released on 1996 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three projects in nonlinear acoustics are described: (1) Surface Acoustic Waves (derivation of theoretical models for Stoneley and Scholte waves in isotropic solids, surface waves in crystals, and surface waves in piezoelectric materials); (2) Nondestructive Testing (theory and experiment for ultrasonic measurement of third order elastic moduli via immersion techniques); (3) Acoustic Streaming (numerical modeling of acoustic streaming, at high Reynolds numbers, produced by focused sound beams containing shocks).

Download or read book Nonlinear Theory of Sound Beams written by N.S. Bakhvalov and published by American Institute of Physics. This book was released on 1987 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nonlinear Acoustic Waves in Micro inhomogeneous Solids written by Veniamin Nazarov and published by John Wiley & Sons. This book was released on 2014-11-17 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nonlinear Acoustic Waves in Micro-inhomogeneous Solids covers the broad and dynamic branch of nonlinear acoustics, presenting a wide variety of different phenomena from both experimental and theoretical perspectives. The introductory chapters, written in the style of graduate-level textbook, present a review of the main achievements of classic nonlinear acoustics of homogeneous media. This enables readers to gain insight into nonlinear wave processes in homogeneous and micro-inhomogeneous solids and compare it within the framework of the book. The subsequent eight chapters covering: Physical models and mechanisms of the structure nonlinearity of micro-inhomogeneous media with cracks and cavities; Elastic waves in media with strong acoustic nonlinearity; Wave processes in micro-inhomogeneous media with hysteretic nonlinearity; Wave processes in nonlinear micro-inhomogeneous media with relaxation; Wave processes in the polycrystalline solids with dissipative and elastic nonlinearity caused by dislocations; Experimental studies of the nonlinear acoustic phenomena in polycrystalline rocks and metals; Experimental studies of nonlinear acoustic phenomena in granular media; and Nonlinear phenomena in seismic waves are dedicated to the theoretical and experimental research of nonlinear processes, caused by longitudinal elastic waves propagation and interaction in the micro-inhomogeneous media with a strong acoustical nonlinearity of different types (elastic, hysteretic, bimodular, elastic quadratic and non-elastic). This valuable monograph is intended for graduate students and researchers in applied physics, mechanical engineering, and applied mathematics, as well as those working in a wide spectrum of disciplines in materials science.

Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acoustical Physics written by and published by . This book was released on 1994 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ray and Wave Chaos in Ocean Acoustics written by Denis Makarov and published by World Scientific. This book was released on 2010 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Ray and wave propagation. 1.1. Underwater sound channel. 1.2. Basic equations. 1.3. Geometrical optics approximations and optical-mechanical analogy. The Hamiltonian formalism. 1.4. Ray travel times. 1.5. Range-dependent environments. 1.6. Acoustic ocean tomography. 1.7. Experiments on long-range sound propagation. 1.8. Summary -- 2. Ray chaos. 2.1. Hamiltonian chaos. 2.2. Lyapunov instability. 2.3. Ray-medium resonance. 2.4. Overlapping of resonances. 2.5. Vertical resonance. 2.6. Manifestation of regular and chaotic ray motion in distributions of ray travel times. 2.7. Summary -- 3. Wave chaos. 3.1. The problem of wave chaos. 3.2. Normal modes. 3.3. Mode coupling under chaotic conditions. 3.4. Influence of fine-scale inhomogeneities on wave dynamics. 3.5. Summary -- 4. Chaotic phenomena in random environment. 4.1. Ray chaos in a random medium. 4.2. Travel times of chaotic rays. 4.3. Modal structure of the sound field in a waveguide with random inhomogeneities. 4.4. Wave beam in an ocean acoustic waveguide. 4.5. Arrival times of sound pulses in the presence of internal waves and a mesoscale inhomogeneity. 4.6. Summary -- 5. Glossary of some concepts and notations in Hamiltonian chaos theory

Download or read book Acoustical Physics written by and published by . This book was released on 2002 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt: Russian academic journal in the field of acoustics. The journal publishes scientific reviews, original papers, short communications, letters to the editor and current events. It covers theoretical and experimental aspects of physical, technical, and biological acoustics. This journal presents results of research conducted at the institutes of the Russian Academy of Sciences, and at universities and research establishments in Russia and abroad.

Download or read book Physics Briefs written by and published by . This book was released on 1993 with total page 1420 pages. Available in PDF, EPUB and Kindle. Book excerpt: