Using slow sound to achieve unidirectional acoustic propagation

Autor: Vassos Achilleos, Yves Auregan, Vincent Pagneux

Publikováno v: 28th AIAA/CEAS Aeroacoustics 2022 Conference.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::438ca6f9b2db5d7a2e079c11770b0bb4
https://doi.org/10.2514/6.2022-2899

Innovative liner concept using friction powder for increasing of broadband noise absorption. Applications for broadband noise absorption in fan duct

Autor: Constantin Sandu, Thomas Humbert, Yves Auregan, Marius Deaconu, Andrei Totu, Andrei Radu, Horatiu Serbescu, Traian Tipa

Publikováno v: IOP Conference Series: Materials Science and Engineering. 1226:012049

This paper presents research related influence of friction powders on enlarging the absorption band of acoustic liners used for reduction of tonal noise in fan duct of aero-engine. Kundt tube measurements done at COMOTI using fine powders (granules)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::79638cee74c1781c4b057b9374c3ca3f
https://doi.org/10.1088/1757-899x/1226/1/012049

Integration of commercial microspeakers in an acoustic absorbing liner

Autor: Alexandre Houdouin, Emile Martincic, Elie Lefeuvre, Stephane Durand, Nourdin Yaakoubi, Yves Auregan

Publikováno v: 2015 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (DTIP)
2015 Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS (DTIP), Apr 2015, Montpellier, France. pp.1-4, ⟨10.1109/DTIP.2015.7160965⟩

International audience; In this work, the fabrication of an acoustic sound absorbing surface (i.e. liner) made of commercial Visaton™ K16 microspeakers is presented. The acoustic liner is made of a circular surface composed of a 10 cm diameter fix

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10815e7e9b135f588265389b72c751ce
https://hal-univ-lemans.archives-ouvertes.fr/hal-02464063