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Aircraft Lining Panels with Low-Cost Hardware for Active Noise Reduction

Misol, Malte and Algermissen, Stephan and Rose, Michael and Monner, Hans Peter (2018) Aircraft Lining Panels with Low-Cost Hardware for Active Noise Reduction. In: Proceedings of Joint Conference ACOUSTICS 2018. Joint Conference ACOUSTICS 2018, 10.-14. Sept. 2018, Ustka, Polen. ISBN 978 1 5386 7114 6

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Abstract

Passive structures are augmented with actuators, sensors and control to implement the task of active noise or vibration reduction. Such systems are considered smart because they have advanced functionalities compared to conventional structures. A smart aircraft lining is able to reduce the lowfrequency cabin noise induced by tonal or multi-tonal external noise sources. Such noise sources are for example fuel-efficient rotor engines like counter-rotating open rotors. Research on smart systems starts on a laboratory scale by using low-noise sensors and high-performance rapid control prototyping systems. The replacement of such costly and bulky laboratory hardware is one important precondition for the commercialization of smart structures. The increased internal noise, the reduced computational performance and other restrictions of low-cost Hardware must be taken into account during the design of a smart system. Experimental results on the noise reduction of a smart lining with low-cost hardware show that a replacement of laboratory hardware will not lead to a loss of performance. The smart lining achieves tonal interior sound pressure level reductions of up to 25 dB with a mass increase of only 2 percent. Even a mass neutral implementation seems possible, if conventional loudspeaker-driven passenger announcements are realized with smart linings.

Item URL in elib:https://elib.dlr.de/122049/
Document Type:Conference or Workshop Item (Speech)
Title:Aircraft Lining Panels with Low-Cost Hardware for Active Noise Reduction
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Misol, MalteMalte.Misol (at) dlr.dehttps://orcid.org/0000-0001-8056-1569
Algermissen, StephanStephan.Algermissen (at) dlr.dehttps://orcid.org/0000-0002-0507-8195
Rose, MichaelMichael.Rose (at) dlr.dehttps://orcid.org/0000-0002-8311-3638
Monner, Hans PeterHans.Monner (at) dlr.dehttps://orcid.org/0000-0002-5897-2422
Date:2018
Journal or Publication Title:Proceedings of Joint Conference ACOUSTICS 2018
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
ISBN:978 1 5386 7114 6
Status:Published
Keywords:active noise control, smart structures, low-cost Hardware, aircraft, lining
Event Title:Joint Conference ACOUSTICS 2018
Event Location:Ustka, Polen
Event Type:international Conference
Event Dates:10.-14. Sept. 2018
Organizer:Polish Acoustical Society - Gdansk Division
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Misol, Dr. Malte
Deposited On:22 Oct 2018 13:14
Last Modified:31 Jul 2019 20:19

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