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Smart Active Lining Modules - Technology for Acoustic Comfort in Future Aircraft

Misol, Malte and Haase, Thomas and Algermissen, Stephan and Unruh, Oliver (2012) Smart Active Lining Modules - Technology for Acoustic Comfort in Future Aircraft. Other. DLR-Institut für Faserverbundleichtbau und Adaptronik. 55 S.

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Official URL: http://www.dlr.de/fa/Portaldata/17/Resources/dokumente/Innovationsbericht_2012_gedruckte_Version.pdf


Acoustic comfort is an important issue in aircraft industry. Important external noise sources are the turbulent boundary layer (TBL) and the engines (jet or rotor). The induced aerodynamic and acoustic pressure fluctuations propagate as structure- and airborne sound through the fuselage into the cabin. The degree of sound transmission and with it the level of interior noise, strongly depends on the sound insulation of the primary fuselage structure and the interior lining elements. The increasing use of lightweight materials in aircraft industry such as carbon fiber reinforced plastics (CFRP) fuselage structures induces great acoustic challenges, which can not be solved solely by means of passive acoustic insulation. Active structural acoustic control (ASAC) is especially effective in the low-frequency domain (< 1kHz), where the sound transmission loss of passive structures is very low. The proposed smart active lining module uses ASAC technology to resolve the conflict between lightweight construction and acoustic comfort.

Item URL in elib:https://elib.dlr.de/113666/
Document Type:Monograph (Other)
Title:Smart Active Lining Modules - Technology for Acoustic Comfort in Future Aircraft
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Misol, MalteUNSPECIFIEDhttps://orcid.org/0000-0001-8056-1569UNSPECIFIED
Haase, ThomasUNSPECIFIEDhttps://orcid.org/0000-0002-9553-9628UNSPECIFIED
Algermissen, StephanUNSPECIFIEDhttps://orcid.org/0000-0002-0507-8195UNSPECIFIED
Refereed publication:No
Open Access:Yes
Number of Pages:55
EditorsEmailEditor's ORCID iDORCID Put Code
UNSPECIFIEDDeutsches Zentrum für Luft- und Raumfahrt e. V.UNSPECIFIEDUNSPECIFIED
Keywords:active control, noise, aircraft, trim panel, smart lining
Institution:DLR-Institut für Faserverbundleichtbau und Adaptronik
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), L - Structures and Materials (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Misol, Dr. Malte
Deposited On:14 Aug 2017 09:44
Last Modified:31 Jul 2019 20:11

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