Results 31 to 40 of about 1,782,949 (343)
Models of nonlinear acoustics viewed as approximations of the Kuznetsov equation [PDF]
Discrete and Continuous Dynamical Systems. Series A, 2020 We relate together different models of non linear acoustic in thermo-elastic media as the Kuznetsov equation, the Westervelt equation, the Khokhlov-Zabolotskaya-Kuznetsov (KZK) equation and the Nonlinear Progressive wave Equation (NPE) and estimate the ...
A. Dekkers +2 more
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Nonlinear Optical Absorption in Nanoscale Films Revealed through Ultrafast Acoustics. [PDF]
Nano letters (Print), 2021 Herein we describe a novel spinning pump-probe photoacoustic technique developed to study nonlinear absorption in thin films. As a test case, an organic polycrystalline thin film of quinacridone, a well-known pigment, with a thickness in the tens of ...
I. Chaban +9 more
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A first order in time wave equation modeling nonlinear acoustics [PDF]
Journal of Mathematical Analysis and ApplicationsIn this paper we focus on a small amplitude approximation of a Navier-Stokes-Fourier system modeling nonlinear acoustics. Omitting all third and higher order terms with respect to certain small parameters, we obtain a first order in time system ...
Barbara Kaltenbacher, Pascal Lehner
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A landmark article on nonlinear time-domain modeling in musical acoustics.
Journal of the Acoustical Society of America, 2021 The Reflections series takes a look back on historical articles from The Journal of the Acoustical Society of America that have had a significant impact on the science and practice of acoustics.
G. Scavone, J. Smith
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Identification of mode couplings in nonlinear vibrations of the steelpan [PDF]
, 2014 The authors are grateful to Bertrand David (Telecom-ParisTech) for computing the code allowing the STFT filtering procedure used in Section 5.1. The filter has been designed in the framework of the PAFI project (Plateforme d’Aide la facture Instrumentale,
TOUZÉ, Cyril +2 more
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Analysis of a Sugimoto Model of Nonlinear Acoustics in an Array of Helmholtz Resonators
SIAM Journal on Applied Mathematics, 2020 A coupled system involving a nonlinear scalar PDE and a linear ODE is theoretically investigated.
Stéphane Junca, B. Lombard
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Fundamental models in nonlinear acoustics part I. Analytical comparison [PDF]
Mathematical Models and Methods in Applied Sciences, 2017 This work is concerned with the study of fundamental models from nonlinear acoustics. In Part I, a hierarchy of nonlinear damped wave equations arising in the description of sound propagation in thermoviscous fluids is deduced.
B. Kaltenbacher, M. Thalhammer
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Consistent third order nonlinear acoustics
, 2008 For very high frequency ultrasound the Navier-Stokes equations are inadequate. The Navier-Stokes equations are first order in the mean free path in a gas.
Söderholm, Lars H.,
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The experimental performance of a nonlinear dynamic vibration absorber [PDF]
, 2013 This paper investigates the physical behaviour andeffectiveness of a nonlinear dynamic vibration absorber(NDVA). The nonlinear absorber considered involves anonlinear hardening spring which was designed andattached to a cantilever beam excited by a ...
Michael J. Brennan +5 more
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, 2012 The International Symposia on Nonlinear Acoustics, now referred to as ISNA, have convened regularly since 1968, bringing together scientists and engineers to report and discuss the latest developments in this branch of nonlinear physics.
Hamilton, M. F. +5 more
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