Magazine Article

Acoustic Liner for Turbomachinery Applications

TBMG-8491

09/01/2010

Abstract
Content

The purpose of this innovation is to reduce aircraft noise in the communities surrounding airports by significantly attenuating the noise generated by the turbomachinery, and enhancing safety by providing a containment barrier for a blade failure. Acoustic liners are used in today’s turbofan engines to reduce noise. The amount of noise reduction from an acoustic liner is a function of the treatment area, the liner design, and the material properties, and limited by the constraints of the nacelle or casement design. It is desirable to increase the effective area of the acoustic treatment to increase noise suppression. Modern turbofan engines use “wide-chord” rotor blades, which means there is considerable treatment area available over the rotor tip.

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Citation
"Acoustic Liner for Turbomachinery Applications," Mobility Engineering, September 1, 2010.
Additional Details
Publisher
Published
Sep 1, 2010
Product Code
TBMG-8491
Content Type
Magazine Article
Language
English