[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Murray et al., 2005 - Google Patents

Manufacturing process and boundary layer influences on perforate liner impedance

Murray et al., 2005

View PDF
Document ID
9873907506949359966
Author
Murray P
Ferrante P
Scofano A
Publication year
Publication venue
11th AIAA/CEAS Aeroacoustics Conference

External Links

Snippet

Noise is rapidly becoming a key design driver for future aircraft designs. This is primarily due to the proliferation in the number of noise events in the vicinity of airports and the subsequent increase in sensitivity of the local population to aircraft noise. It is therefore …
Continue reading at www.researchgate.net (PDF) (other versions)

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or damping of, acoustic waves, e.g. sound
    • G10K11/162—Selection of materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02881—Temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/024—Mixtures
    • G01N2291/02491—Materials with nonlinear acoustic properties
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting, or directing sound
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/46—Processing the detected response signal, e.g. electronic circuits specially adapted therefor by spectral analysis, e.g. Fourier analysis or wavelet analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable

Similar Documents

Publication Publication Date Title
Murray et al. Development of a single degree of freedom perforate impedance model under grazing flow and high SPL
Motsinger et al. 14 Design and Performance of Duct Acoustic Treatment
Elnady et al. On semi-empirical liner impedance modeling with grazing flow
Horowitz et al. Characterization of a compliant-backplate Helmholtz resonator for an electromechanical acoustic liner
Jones et al. Broadband and low-frequency acoustic liner investigations at NASA and ONERA
Murray et al. Manufacturing process and boundary layer influences on perforate liner impedance
Jones et al. Effects of liner geometry on acoustic impedance
Murray et al. Development and validation of a single degree of freedom perforate impedance model under high SPL and grazing flow
Allam et al. Experimental characterization of acoustic liners with extended reaction
Ross et al. Evaluation of an Additive-Manufactured Acoustic Metamaterial as an Nacelle Liner using the Active Noise Control Fan
Laly et al. Modeling of acoustic lined duct with and without grazing air flow by an analytical method
Jones et al. Evaluation of a variable-impedance ceramic matrix composite acoustic liner
Hillereau et al. Measurements of the acoustic attenuation by single layer acoustic liners constructed with simulated porous honeycomb cores
Versaevel et al. Folded spiral-shaped cavities for nacelle acoustic liners: Impedance and attenuation modelling and comparison to experimental results
Murray et al. Development of a single degree of freedom micro-perforate impedance model under grazing flow and high SPL
Jones et al. Evaluation of Variable-Depth Liners with Slotted Cores
Gaeta et al. Implementation of an In-Situ Impedance Techniques on a Full Scale Aero-Engine
Kim et al. Modeling pulsed-blowing systems for flow control
Palani et al. Experimental and numerical assessment of novel acoustic liners for aero-engine applications
Elnady et al. Impedance of SDOF perforated liners at high temperatures
Liu et al. Design of tunable acoustic liner and adaptive control system
Kraft et al. Acoustic treatment design scaling methods
Wang et al. Low-frequency Broadband Noise Absorption of Multi-chamber Micro-perforated Panel Absorbers in Normal and Grazing Acoustic Incidence
Jones et al. Partition Thickness Considerations for Additively Manufactured Acoustic Liners
Phong et al. Acoustic transmission loss of perforated plates