Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Perrey-Debain Emmanuel"'
Autor:
de Reboul Silouane, Perrey-Debain Emmanuel, Ville Jean-Michel, Zerbib Nicolas, Hugues Florian, Moreau Stéphane
Publikováno v:
Acta Acustica, Vol 8, p 7 (2024)
The proximity of obstacles in a ventilation network can result in a significant increase of the noise production. In this paper, a tandem diaphragm inserted in a rigid duct with rectangular cross section is investigated and compared to a single diaph
Externí odkaz:
https://doaj.org/article/5086907b04ee48b0a2cbc7fb89a2fd50
Publikováno v:
Acta Acustica, Vol 7, p 13 (2023)
Duct acoustic network modeling is commonly carried out using the transfer matrix formalism which is limited to the low frequency range. The aim of this work is to extend it to higher frequencies by taking into account the multi-mode acoustic propagat
Externí odkaz:
https://doaj.org/article/47a001b9d8ae4f2591a9290125d8aa2e
Publikováno v:
Acta Acustica, Vol 4, Iss 4, p 16 (2020)
The Partition of Unity Finite Element Method (PUFEM) is now a well established and efficient method used in computational acoustics to tackle short-wave problems. This method is an extension of the classical finite element method whereby enrichment f
Externí odkaz:
https://doaj.org/article/041e1de47a8f4435bf527106604fc6d6
Publikováno v:
Journal of Sound and Vibration, 575:118239, 2024
The concept of exceptional point (EP) is demonstrated experimentally in the case of a simple mechanical system consisting of two linearized coupled pendulums. Exceptional points correspond to specific values of the system parameters that yield defect
Externí odkaz:
http://arxiv.org/abs/2308.01089
Publikováno v:
In Journal of Sound and Vibration 14 April 2024 575
Publikováno v:
In Journal of Sound and Vibration 17 February 2024 571
Publikováno v:
In Journal of Sound and Vibration 20 January 2024 569
Publikováno v:
In Wave Motion August 2023 121
A numerical algorithm is proposed to explore in a systematic way the trajectories of the eigenvalues of non-Hermitian matrices in the parametric space and exploit this in order to find the locations of defective eigenvalues in the complex plane. Thes
Externí odkaz:
http://arxiv.org/abs/1909.11579
Publikováno v:
In Mechanical Systems and Signal Processing 15 February 2023 185