Skip to main content

News about Scitation

In December 2016 Scitation will launch with a new design, enhanced navigation and a much improved user experience.

To ensure a smooth transition, from today, we are temporarily stopping new account registration and single article purchases. If you already have an account you can continue to use the site as normal.

For help or more information please visit our FAQs.

banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
/content/asa/journal/jasa/138/1/10.1121/1.4923013
1.
1. W. R. Watson and M. G. Jones, “ Validation of a new procedure for impedance eduction in flow,” in 16th AIAA/CEAS Aeroacoustics Conference ( AIAA/CEAS Aeroacoustics Conference, 2010).
2.
2. W. Watson and M. Jones, “ New numerical procedure for impedance eduction in ducts containing mean flow,” AIAA J. 49, 21092122 (2011).
http://dx.doi.org/10.2514/1.J050317
3.
3. J. Primus, E. Piot, and F. Simon, “ An adjoint-based method for liner impedance eduction: Validation and numerical investigation,” J. Sound Vib. 332, 5875 (2013).
http://dx.doi.org/10.1016/j.jsv.2012.07.051
4.
4. Y. Aurégan, M. Leroux, and V. Pagneux, “ Measurement of linear impedance with flow by an inverse method,” in 10th AIAA/CEAS Aeroacoustics Conference 2004-2838 ( AIAA/CEAS Aeroacoustics Conference, 2004).
5.
5. T. Elnady, H. Bodé, and B. Elhadidi, “ Validation of an inverse semi-analytical technique to reduce liner impedance,” AIAA J. 47, 28362844 (2009).
http://dx.doi.org/10.2514/1.41647
6.
6. M. Taktak, J.-M. Ville, M. Haddar, G. Gabard, and F. Foucart, “ An indirect method for the characterization of locally reacting liners,” J. Acoust. Soc. Am 127, 35483559 (2010).
http://dx.doi.org/10.1121/1.3365250
7.
7. B. Nennig, E. Perrey-Debain, and M. B. Tahar, “ A mode matching method for modelling dissipative silencers lined with poroelastics materials and containing mean flow,” J. Acoust. Soc. Am 128, 33083320 (2010).
http://dx.doi.org/10.1121/1.3506346
8.
8. A. W. Guess, “ Calculation of perforated plate liner parameters from specified acoustic resistance and reactance,” J. Sound Vib. 40, 119137 (1975).
http://dx.doi.org/10.1016/S0022-460X(75)80234-3
9.
9. E. Zhang, J. D. Chazot, J. Antoni, and M. A. Hamdi, “ Bayesian characterization of viscoelastic materials in laminated structures,” J. Sound Vib. 332, 36543666 (2013).
http://dx.doi.org/10.1016/j.jsv.2013.02.032
http://aip.metastore.ingenta.com/content/asa/journal/jasa/138/1/10.1121/1.4923013
Loading
/content/asa/journal/jasa/138/1/10.1121/1.4923013
Loading

Data & Media loading...

Loading

Article metrics loading...

/content/asa/journal/jasa/138/1/10.1121/1.4923013
2015-07-23
2016-12-04

Abstract

The noise reduction of a liner placed in the nacelle of a turbofan engine is still difficult to predict due to the lack of knowledge of its acoustic impedance that depends on grazing flow profile, mode order, and sound pressure level. An eduction method, based on a Bayesian approach, is presented here to adjust an impedance model of the liner from sound pressures measured in a rectangular treated duct under multimodal propagation and flow. The cost function is regularized with prior information provided by Guess's [J. Sound Vib. , 119–137 (1975)] impedance of a perforated plate. The multi-parameter optimization is achieved with an Evolutionary-Markov-Chain-Monte-Carlo algorithm.

Loading

Full text loading...

/deliver/fulltext/asa/journal/jasa/138/1/1.4923013.html;jsessionid=yQIOY7pr3UndPJvvRw6xfHay.x-aip-live-02?itemId=/content/asa/journal/jasa/138/1/10.1121/1.4923013&mimeType=html&fmt=ahah&containerItemId=content/asa/journal/jasa
true
true

Access Key

  • FFree Content
  • OAOpen Access Content
  • SSubscribed Content
  • TFree Trial Content
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
/content/realmedia?fmt=ahah&adPositionList=
&advertTargetUrl=//oascentral.aip.org/RealMedia/ads/&sitePageValue=asadl.org/jasa/138/1/10.1121/1.4923013&pageURL=http://scitation.aip.org/content/asa/journal/jasa/138/1/10.1121/1.4923013'
Right1,Right2,Right3,