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Noise reduction results of the ACASIAS Active Lining Panel

Misol, Malte und Algermissen, Stephan (2020) Noise reduction results of the ACASIAS Active Lining Panel. In: 2nd European Conference On Multifunctional Structures, EMuS 2020, Seiten 68-73. International Centre for Numerical Methods in Engineering (CIMNE). European Conference on Multifunctional Structures (EMuS), 17.-18. Nov. 2020, Online. doi: 10.23967/emus.2020.008. ISBN 978-84-121101-6-6. ISSN 2696-6913.

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Offizielle URL: https://congress.cimne.com/EMuS2020/

Kurzfassung

Advanced concepts for aero-structures with multifunctional capabilities are investigated within the EU-project ACASIAS. In work package 3 of ACASIAS, components of an active noise reduction system are structurally integrated into a curved sandwich panel by means of 3D printed inserts. This so-called smart lining is intended for application in aircraft as a modular and lightweight interior noise treatment in propeller-driven aircraft. The broad application scenario of smart linings ranges from retro-fitting of current regional aircraft such as ATR 42, ATR 72, DHC-8 Q400 to the application in new short-range aircraft with energy efficient counter rotating open rotor (CROR) engines or with distributed electric propellers. A key feature of the smart lining with integrated active components is its modularity, facilitating a flexible application in the aircraft cabin. This requires a fully self-contained sensing mechanism based on structurally integrated accelerometers. Using the normal surface vibration data from the integrated sensors, the smart lining is able to predict the sound field in front of it. The so-called virtual microphone method with remote sensors and observer filter allows to get rid of real microphones and wiring in the aircraft cabin. This makes retro-fitting easier because it reduces wiring effort and costs which is beneficial for future aircraft as well. However, the use of virtual instead of real microphones might deteriorate the performance or even the stability of the active noise reduction system because it relies on accurate plant models. Laboratory experiments in a sound transmission loss facility are conducted to assess the behavior of the smart lining with virtual microphones and compare it to a smart lining with real microphones. The sensitivity of the smart lining to environmental changes and the noise reduction performance and control system stability are investigated in this study.

elib-URL des Eintrags:https://elib.dlr.de/139017/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Noise reduction results of the ACASIAS Active Lining Panel
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Misol, MalteMalte.Misol (at) dlr.dehttps://orcid.org/0000-0001-8056-1569NICHT SPEZIFIZIERT
Algermissen, StephanStephan.Algermissen (at) dlr.dehttps://orcid.org/0000-0002-0507-8195NICHT SPEZIFIZIERT
Datum:2020
Erschienen in:2nd European Conference On Multifunctional Structures, EMuS 2020
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Nein
DOI:10.23967/emus.2020.008
Seitenbereich:Seiten 68-73
Herausgeber:
HerausgeberInstitution und/oder E-Mail-Adresse der HerausgeberHerausgeber-ORCID-iDORCID Put Code
Kos, JohanRoyal Netherlands Aerospace Center (NLR)NICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Martinez, XavierUniversitat Politècnica de Catalunya (UPC)NICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Schippers, HarmenRoyal Netherlands Aerospace Center (NLR)NICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Verlag:International Centre for Numerical Methods in Engineering (CIMNE)
ISSN:2696-6913
ISBN:978-84-121101-6-6
Status:veröffentlicht
Stichwörter:Active Noise Reduction, ANC, ASAC, Interior Noise, Aircraft, CROR
Veranstaltungstitel:European Conference on Multifunctional Structures (EMuS)
Veranstaltungsort:Online
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:17.-18. Nov. 2020
Veranstalter :CIMNE Congress Bureau, Barcelona, Spain
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Luftfahrt
HGF - Programmthema:Flugzeuge
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L AR - Aircraft Research
DLR - Teilgebiet (Projekt, Vorhaben):L - Systeme und Kabine (alt)
Standort: Braunschweig
Institute & Einrichtungen:Institut für Faserverbundleichtbau und Adaptronik > Adaptronik
Hinterlegt von: Misol, Dr. Malte
Hinterlegt am:07 Dez 2020 07:16
Letzte Änderung:20 Nov 2023 11:04

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