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Active Lining for the Reduction of Rotor Noise

Algermissen, Stephan and Misol, Malte and Kokott, Alexander and Gonet, Kai and Lungaho, Victor (2020) Active Lining for the Reduction of Rotor Noise. International Conference on Noise and Vibration Engineering (ISMA), 7.-9. Sep. 2020, Online.

Full text not available from this repository.

Official URL: http://past.isma-isaac.be/downloads/isma2020/proceedings/Contribution_312_proceeding_3.pdf


The participants of the EU-project ACASIAS develop advanced concepts for aero-structures with multifunctional capabilities. Within work package 3 an active system for noise reduction is integrated into a lining panel. The application scope includes current propeller driven aircraft and future aircraft with counterrotating open rotor (CROR) engines. The drawback of these CO2-efficient engines is their high sound emission in the frequency band up to 500 Hz. Active noise reduction systems are able to achieve performance in this frequency band while passive sound insulation materials fall behind. In this paper an integration concept for the actuators and sensors of an active noise reduction system is presented. It includes the protection of the components from humidity, dust, etc. and the integration into industrial manufacturing processes. A tool- and connector-free assembly of the components allows a fast and reliable maintenance. The concept is implemented on a lining with size 1300×1690 mm^2.

Item URL in elib:https://elib.dlr.de/137312/
Document Type:Conference or Workshop Item (Speech)
Title:Active Lining for the Reduction of Rotor Noise
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Algermissen, StephanUNSPECIFIEDhttps://orcid.org/0000-0002-0507-8195UNSPECIFIED
Misol, MalteUNSPECIFIEDhttps://orcid.org/0000-0001-8056-1569UNSPECIFIED
Kokott, AlexanderUNSPECIFIEDhttps://orcid.org/0000-0002-0082-649XUNSPECIFIED
Date:September 2020
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 161-172
Keywords:active noise reduction, lining panel, manufacturing
Event Title:International Conference on Noise and Vibration Engineering (ISMA)
Event Location:Online
Event Type:international Conference
Event Dates:7.-9. Sep. 2020
Organizer:KU Leuven
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 (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Algermissen, Dr.-Ing. Stephan
Deposited On:16 Nov 2020 09:22
Last Modified:20 Jun 2021 15:54

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