Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Gyani Shankar Sharma"'
Publikováno v:
The Journal of the Acoustical Society of America. 150:1448-1452
We present a theoretical framework for acoustic wave propagation in a metasurface comprising a hexagonal lattice of hard spherical inclusions embedded in a soft elastic medium. Each layer of inclusions in the direction of sound propagation is approxi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8f2ad07c5287a8be4748284ddc8b300
https://doi.org/10.1121/10.0005897
https://doi.org/10.1121/10.0005897
Publikováno v:
Journal of Vibration and Acoustics. 144
Time- and frequency-domain numerical models are developed to investigate the acoustic performance of metascreen-based coatings for maritime applications. The coating designs are composed of periodic air-filled cavities embedded in a soft elastic medi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2fb1aef947905ff549fbbef9b186126
https://doi.org/10.1115/1.4053543
https://doi.org/10.1115/1.4053543
Autor:
Gyani Shankar Sharma, Adrien Marsick, Laurent Maxit, Alex Skvortsov, Ian MacGillivray, Nicole Kessissoglou
Publikováno v:
Journal of the Acoustical Society of America
Journal of the Acoustical Society of America, Acoustical Society of America, 2021, 150 (6), pp.4308-4314. ⟨10.1121/10.0008907⟩
Journal of the Acoustical Society of America, Acoustical Society of America, 2021, 150 (6), pp.4308-4314. ⟨10.1121/10.0008907⟩
An analytical framework for sound radiation from a fluid-loaded cylindrical shell covered with an acoustic coating is presented. The coating is composed of a soft elastic material embedded with a circumferential layer of equispaced voids. The layer o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ccf77218fb59fe1914e4fd8f5f8a0bb
https://pubmed.ncbi.nlm.nih.gov/34972299
https://pubmed.ncbi.nlm.nih.gov/34972299
Autor:
Daniel Eggler, Laurent Maxit, Gyani Shankar Sharma, Valentin Meyer, Nicole Kessissoglou, Adrien Marsick
Publikováno v:
Journal of Sound and Vibration
Journal of Sound and Vibration, Elsevier, 2021, 511, pp.116359. ⟨10.1016/j.jsv.2021.116359⟩
Journal of Sound and Vibration, Elsevier, 2021, 511, pp.116359. ⟨10.1016/j.jsv.2021.116359⟩
A vibro-acoustic model of a structurally excited cylindrical shell of infinite length submerged in a heavy fluid at a finite distance from a free surface is presented. Expressions for the shell displacement, the acoustic pressure in the interior cavi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2277bb57ddae6df8402040a81d22f6cc
https://hal.archives-ouvertes.fr/hal-03426020/document
https://hal.archives-ouvertes.fr/hal-03426020/document
Autor:
Cikai Lin, Gyani Shankar Sharma, Daniel Eggler, Laurent Maxit, Alex Skvortsov, Ian MacGillivray, Nicole Kessissoglou
Publikováno v:
International Journal of Mechanical Sciences. 232:107479
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::080bc5b22953088a5e5991de34e2f150
https://doi.org/10.1016/j.ijmecsci.2022.107479
https://doi.org/10.1016/j.ijmecsci.2022.107479
Autor:
Gyani Shankar Sharma
Publikováno v:
The Journal of the Acoustical Society of America. 152:A87-A87
Marine vessels are covered with an acoustic coating for underwater noise control. Acoustic coatings comprise a soft rubber-like medium embedded with periodic inclusions. Common inclusion types include cavities or hard metallic scatterers. A coating d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::117c2f6ce94d2d7030afb2512d1bd694
https://doi.org/10.1121/10.0015635
https://doi.org/10.1121/10.0015635
Autor:
Gyani Shankar Sharma, Abhijit Sarkar
Publikováno v:
Applied Acoustics. 154:226-235
A novel concept of local noise control along specific receiver directions is demonstrated by controlling the directivity of the radiated noise. This method is particularly useful for practical low frequency noise where global noise control is difficu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9296cbf7d18e2443c308aadba1237f8
https://doi.org/10.1016/j.apacoust.2019.04.031
https://doi.org/10.1016/j.apacoust.2019.04.031
Publikováno v:
Journal of Sound and Vibration. 443:652-665
The acoustic performance of a locally resonant phononic crystal comprising steel cylindrical scatterers arranged periodically in a viscoelastic medium is analytically and numerically studied. Analytical expressions for the damping and dipole resonanc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76f257ca49e745598d165efdf7f554b6
https://doi.org/10.1016/j.jsv.2018.12.013
https://doi.org/10.1016/j.jsv.2018.12.013
Publikováno v:
Applied Acoustics. 143:200-210
Sound absorption by viscoelastic coatings for underwater applications comprising both periodically distributed voids and hard inclusions is presented. Using effective medium theory, each layer of gratings is approximated as a homogeneous medium with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7295c83012b86db6d8f17ef2417f2129
https://doi.org/10.1016/j.apacoust.2018.09.003
https://doi.org/10.1016/j.apacoust.2018.09.003
Publikováno v:
Physical Review B. 102
We present an analytical framework to investigate the acoustic performance of an array of closely spaced spherical cavities embedded in a thin soft medium submerged in water. Each layer of cavities is approximated as a homogenized layer with effectiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7c7f9979b0b42d673250954d79afd9f
https://doi.org/10.1103/physrevb.102.214308
https://doi.org/10.1103/physrevb.102.214308