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Titolo:
Parametric study of the influence of compression on the acoustical anisotropy of automotive felts
Autore:
Castagnede, B; Moussatov, A; Tarnow, V;
Indirizzi:
Univ Maine, Acoust Lab, UMR 6613, CNRS, F-72085 Le Mans 9, France Univ Maine Le Mans France 9 b, UMR 6613, CNRS, F-72085 Le Mans 9, France Danish Tech Univ, AKP, Lyngby 2800, Denmark Danish Tech Univ Lyngby Denmark 2800 ech Univ, AKP, Lyngby 2800, Denmark
Titolo Testata:
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE B-MECANIQUE
fascicolo: 4, volume: 329, anno: 2001,
pagine: 295 - 301
SICI:
1620-7742(200104)329:4<295:PSOTIO>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHARACTERISTIC DIMENSIONS; GLASS WOOL; IMPEDANCE; FOAMS; AIR;
Keywords:
felt materials; influence of compression; equivalent fluid theory; anisotropy; coefficient of reflection; Brewster angle; tortuosity;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Castagnede, B Univ Maine, Acoust Lab, UMR 6613, CNRS, Ave Olivier Messiaen, F-72085 Le Mans 9, France Univ Maine Ave Olivier Messiaen Le Mans France9 9, France
Citazione:
B. Castagnede et al., "Parametric study of the influence of compression on the acoustical anisotropy of automotive felts", CR A S IIB, 329(4), 2001, pp. 295-301

Abstract

The present note describes work related to anisotropy of acoustical properties of felt materials being compressed with a rate n varying from 1 to 4. Following a recent note [1], it is shown that such compression induces someanisotropy, which is small but still significant, clearly visible on the elliptical shape of the tortuosity spatial distribution, and also on the Brewster angle shifts, which are predictible. Some fine experimental studies of the reflection coefficient versus the angle of incidence have been performed and discussed. (C) 2001 Academie des sciences/Editions scientifiques etmedicales Elsevier SAS.

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Documento generato il 25/09/20 alle ore 22:27:21