𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A TRANSFER MATRIX APPROACH FOR ACOUSTIC ANALYSIS OF A MULTILAYERED ACTIVE ACOUSTIC COATING

✍ Scribed by C. CAI; G.R. LIU; K.Y. LAM

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
415 KB
Volume
248
Category
Article
ISSN
0022-460X

No coin nor oath required. For personal study only.

✦ Synopsis

A transfer matrix approach is presented to evaluate and analyze the acoustic characteristics of a multilayered active acoustic coating, which can be applied to actively reduce sound re#ection and/or transmission upon a given sound wave excitation. Expressions are derived to obtain the re#ection and transmission coe$cients, and to separate the incident sound pressure with re#ected sound pressure from two integrated piezoelectric sensor layers. Numerical results for re#ection and transmission coe$cients of three cases are presented to verify the approach and to depict its e!ectiveness in the "eld of study and simulation of a multilayered active acoustic coating with a backing plate.

2001 Academic Press C. CAI EΒΉ AΒΈ.

πŸ“œ SIMILAR VOLUMES

A Geometrical Acoustics Approach for Cal
A Geometrical Acoustics Approach for Calculating the Effects of Flow on Acoustics Scattering
✍ N. Atalla; S. Glegg πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 446 KB

A ray acoustics approach to flow effects on acoustics scattering is considered, based on a combination of geometrical acoustics and the paraxial ray approximation. The approach allows for scattering by objects of arbitrary shapes, inhomogeneous and moving media. Applications to flow effects on scatt

A SUBSYSTEM APPROACH FOR ACOUSTIC ANALYS
A SUBSYSTEM APPROACH FOR ACOUSTIC ANALYSIS OF MUFFLERS HAVING IDENTICAL PERFORATED PIPES
✍ E. Dokumaci πŸ“‚ Article πŸ“… 1996 πŸ› Elsevier Science 🌐 English βš– 459 KB

A novel subsystem approach is developed for acoustic analysis of parallel perforated pipe arrangements with identical perforated pipes. The analysis is based on the continuous source theory of wave propagation in perforated pipes. It is shown that an n-pipe element with two or more identical perfora

Magnetic acoustic resonance immunoassay
Magnetic acoustic resonance immunoassay (MARIA): a multifrequency acoustic approach for the non-labelled detection of biomolecular interactions
✍ Bernardita Araya-Kleinsteuber; Ana C. A. Roque; Eleftheria Kioupritzi; Adrian C. πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 190 KB

## Abstract A unique sensing platform, comprising an electromagnetic field detector and an acoustic resonator, has been used as a wireless system for remote sensing of biorecognition events. The MARS (Magnetic Acoustic Resonator Sensor) technique has proven useful for detecting the formation of pro

LQG/GA DESIGN OF ACTIVE NOISE CONTROLLER
LQG/GA DESIGN OF ACTIVE NOISE CONTROLLERS FOR A COLLOCATED ACOUSTIC DUCT SYSTEM
✍ JONG-YIH LIN; HORNG-YIH SHEU; SHIH-CHENG CHAO πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 English βš– 248 KB

Active noise control of an acoustic duct system is studied by a real state-space model in this paper. The linear quadratic Gaussian (LQG) method is chosen to design an active noise controller in order to reject noise in a collocated duct system subject to a disturbance source at one end. Robustness

A perturbative method for the spectral a
A perturbative method for the spectral analysis of an acoustic multistratified strip
✍ Elisabeth Croc; Yves Dermenjian πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 220 KB πŸ‘ 2 views

We consider the acoustic propagator A"! ) c in the strip "+(x, z)31"0(z(H, with finite width H'0. The celerity c depends for large "x" only on the variable z and describes the stratification of : it is assumed to be in ΒΈ( ), bounded from below by c '0, such that there exists M'0 with c(x, z)"c (z) i