Shock and Vibration

Shock and Vibration / 2013 / Article

Open Access

Volume 20 |Article ID 748036 | 12 pages | https://doi.org/10.3233/SAV-130799

Adaptive Noise Cancellation System for Low Frequency Transmission of Sound in Open Fan Aircraft

Received09 Aug 2012
Revised15 Mar 2013
Accepted25 Mar 2013

Abstract

This paper describes the use of a structural/acoustic model of a section of a large aircraft to help define the sensor/actuator architecture that was used in a hardware demonstration of adaptive noise cancellation. Disturbances considered were representative of propeller-induced disturbances from an open fan aircraft. Controller on and controller off results from a hardware demonstration on a portion of a large aircraft are also included. The use of the model has facilitated the development of a new testing technique, closely related to modal testing, that can be used to find good structural actuator locations for adaptive noise cancellation.

Copyright © 2013 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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