Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Mabrouk Ben Tahar"'
Autor:
Henri Walaszek, Mabrouk Ben Tahar
Publikováno v:
e-Journal of Nondestructive Testing, Vol 28, Iss 9 (2023)
On regroupe sous le nom d’acoustique non linéaire différentes techniques qui consistent à analyser la réponse ultrasonore des matériaux lorsqu’ils sont soumis à des niveaux d’excitation, le plus souvent élevés. L’analyse peut être ef
Externí odkaz:
https://doaj.org/article/053981c3644048139d3fbcbcb5cb5eda
Publikováno v:
Chinese Journal of Aeronautics, Vol 34, Iss 7, Pp 39-49 (2021)
This work reveals that the addition of periodically distributed stitches to sandwich structure enables a significant reduction of vibration in stop-band and this new functionality is systematically investigated. Firstly, a finite element model which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3560b810f3a150fff6f8ac3b5c069381
https://doi.org/10.1016/j.cja.2020.11.010
https://doi.org/10.1016/j.cja.2020.11.010
Optimization of sound transmission loss of open acoustic barriers with respect to unit cell topology
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 235:5962-5974
Open acoustic barriers exhibit excellent sound transmission reduction property at a certain frequency/frequencies which highly depends on the configuration of its unit cell. Design of unit cell configuration for minimum sound transmission at predefin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a09fef2ede9a230fba18525af871059
https://doi.org/10.1177/0954406221991579
https://doi.org/10.1177/0954406221991579
Publikováno v:
The Journal of the Acoustical Society of America. 150(4)
A calculation method is proposed to investigate trapped modes in a rigid waveguide with rigid obstacles in the presence of non-potential steady mean flow in a two-dimensional coordinate system. This method facilitates the investigation of trapped mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::131e5b1845ebb53e330ef36383ae1a10
https://pubmed.ncbi.nlm.nih.gov/34717451
https://pubmed.ncbi.nlm.nih.gov/34717451
Publikováno v:
Acta Acustica united with Acustica. 103:200-209
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::041f892af126bb46d398a089bec9f966
https://doi.org/10.3813/aaa.919048
https://doi.org/10.3813/aaa.919048
Publikováno v:
The Journal of the Acoustical Society of America. 139:320-331
This paper presents a solution for aero-acoustic problems using the Galbrun equation in the time domain with a non-uniform steady mean flow in a two-dimensional coordinate system and the perfectly matched layer technique as the boundary conditions co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3639687b5febb7e1b0710e9a928aa44
https://doi.org/10.1121/1.4939965
https://doi.org/10.1121/1.4939965
Publikováno v:
Journal of Composite Materials
Journal of Composite Materials, SAGE Publications, 2018, 53 (5), pp.579-592. ⟨10.1177/0021998318788141⟩
Journal of Composite Materials, SAGE Publications, 2018, 53 (5), pp.579-592. ⟨10.1177/0021998318788141⟩
Stitched sandwich becomes popular in structural application owing to its better performance in the transverse direction with respect to classical sandwich structure and relatively low-cost additional stitching process. The identification of its elast
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0086da0fc680f81f0e5bfba53cec4b44
https://hal.archives-ouvertes.fr/hal-02124671
https://hal.archives-ouvertes.fr/hal-02124671
Publikováno v:
Journal of the Acoustical Society of America
Journal of the Acoustical Society of America, Acoustical Society of America, 2017, 141 (6), pp.4168-4178. ⟨10.1121/1.4983653⟩
Journal of the Acoustical Society of America, Acoustical Society of America, 2017, 141 (6), pp.4168-4178. ⟨10.1121/1.4983653⟩
International audience; Passive acoustic treatments, also called liners, are the main solution to noise problems. The Single Degree Of Freedom (SDOF) acoustic treatment, composed of a thin material (perforated plate) affixed to air cavities with a ri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::649f092a8c6f0a173d09a443508d3929
https://pubmed.ncbi.nlm.nih.gov/28618816
https://pubmed.ncbi.nlm.nih.gov/28618816
Publikováno v:
Multidiscipline Modeling in Materials and Structures. 7:356-369
PurposeThe purpose of this paper is to present the extension of plane wave based method.Design/methodology/approachThe mixed functional are discretized using enriched finite elements. The fluid is discretized by enriched acoustic element, the structu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4dafbec288d591c9c59d565422e9fd05
https://doi.org/10.1108/15736101111185261
https://doi.org/10.1108/15736101111185261
Publikováno v:
Applied Acoustics. 70:82-96
This paper presents a new numerical model to investigate the vibro-acoustic behaviour of two laminated glass plates enclosing a thin viscothermal fluid cavity. The aim of this work is to develop an original five layer (two skins plies, two adhesive f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98f5210b843219879d45949c6fb5bdca
https://doi.org/10.1016/j.apacoust.2008.01.002
https://doi.org/10.1016/j.apacoust.2008.01.002