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Enhancement and Smoothing of Near-Threshold Wood Anomalies in an Acoustic Waveguide. / Nazarov, S. A.

In: Acoustical Physics, Vol. 64, No. 5, 01.09.2018, p. 535-547.

Research output: Contribution to journal › Article › peer-review

Harvard

Nazarov, SA 2018, 'Enhancement and Smoothing of Near-Threshold Wood Anomalies in an Acoustic Waveguide', Acoustical Physics, vol. 64, no. 5, pp. 535-547. https://doi.org/10.1134/S106377101805007X

APA

Nazarov, S. A. (2018). Enhancement and Smoothing of Near-Threshold Wood Anomalies in an Acoustic Waveguide. Acoustical Physics, 64(5), 535-547. https://doi.org/10.1134/S106377101805007X

Vancouver

Nazarov SA. Enhancement and Smoothing of Near-Threshold Wood Anomalies in an Acoustic Waveguide. Acoustical Physics. 2018 Sep 1;64(5):535-547. https://doi.org/10.1134/S106377101805007X

Author

Nazarov, S. A. / Enhancement and Smoothing of Near-Threshold Wood Anomalies in an Acoustic Waveguide. In: Acoustical Physics. 2018 ; Vol. 64, No. 5. pp. 535-547.

BibTeX

@article{138e04f6d91e42889eef51ae14f39e5b,
title = "Enhancement and Smoothing of Near-Threshold Wood Anomalies in an Acoustic Waveguide",
abstract = "Abstract: A gently sloping perturbation of the rigid wall of a planar acoustic waveguide can cause a Wood anomaly, reflected in an enormously rapid change in the diffraction pattern when the cutoff frequencies are approached from below inside a continuous spectrum. Asymptotic analysis has been used to establish the restrictions imposed on the wall perturbation profile that ensure the appearance, enhancement, or disappearance of the anomaly. The asymptotics of the eigenfrequencies is studied and the complex and threshold resonances are discussed.",
keywords = "acoustic waveguide, asymptotics, complex and threshold resonances, cutoff points in a continuous spectrum, wall perturbation, Wood anomaly",
author = "Nazarov, {S. A.}",
year = "2018",
month = sep,
day = "1",
doi = "10.1134/S106377101805007X",
language = "English",
volume = "64",
pages = "535--547",
journal = "Acoustical Physics",
issn = "1063-7710",
publisher = "МАИК {"}Наука/Интерпериодика{"}",
number = "5",

}

RIS

TY - JOUR

T1 - Enhancement and Smoothing of Near-Threshold Wood Anomalies in an Acoustic Waveguide

AU - Nazarov, S. A.

PY - 2018/9/1

Y1 - 2018/9/1

N2 - Abstract: A gently sloping perturbation of the rigid wall of a planar acoustic waveguide can cause a Wood anomaly, reflected in an enormously rapid change in the diffraction pattern when the cutoff frequencies are approached from below inside a continuous spectrum. Asymptotic analysis has been used to establish the restrictions imposed on the wall perturbation profile that ensure the appearance, enhancement, or disappearance of the anomaly. The asymptotics of the eigenfrequencies is studied and the complex and threshold resonances are discussed.

AB - Abstract: A gently sloping perturbation of the rigid wall of a planar acoustic waveguide can cause a Wood anomaly, reflected in an enormously rapid change in the diffraction pattern when the cutoff frequencies are approached from below inside a continuous spectrum. Asymptotic analysis has been used to establish the restrictions imposed on the wall perturbation profile that ensure the appearance, enhancement, or disappearance of the anomaly. The asymptotics of the eigenfrequencies is studied and the complex and threshold resonances are discussed.

KW - acoustic waveguide

KW - asymptotics

KW - complex and threshold resonances

KW - cutoff points in a continuous spectrum

KW - wall perturbation

KW - Wood anomaly

UR - http://www.scopus.com/inward/record.url?scp=85054868618&partnerID=8YFLogxK

U2 - 10.1134/S106377101805007X

DO - 10.1134/S106377101805007X

M3 - Article

AN - SCOPUS:85054868618

VL - 64

SP - 535

EP - 547

JO - Acoustical Physics

JF - Acoustical Physics

SN - 1063-7710

IS - 5

ER -

ID: 40973578