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Active CFRP-Panels for Reduction of Low-Frequency Turbulent Boundary Layer Noise

Monner, Hans Peter and Misol, Malte and Algermissen, Stephan and Unruh, Oliver (2010) Active CFRP-Panels for Reduction of Low-Frequency Turbulent Boundary Layer Noise. AIAA/ASME/ASCE/AHS/ASC, 12. - 15. April 2010, Orlando, Florida.

Full text not available from this repository.

Abstract

The increasing use of modern lightweight materials in the aircraft industry raises the demand for innovative and lightweight-compliant noise abatement techniques. Smartstructures technology is able to overcome the passive constraints in the low-frequency range (<500Hz) by augmenting the light-weight structure with structurally integrated transducers and a suitable control scheme. In these investigations, an active carbon fiber reinforced plastic (CFRP) panel was designed, manufactured and experimentally investigated in an acoustic wind tunnel. Measurement data of turbulent wall pressure fluctuations, structural vibration and active sound power provide a database for the verification and validation of the developed simulation models. Active control of the smart CFRP-panel showed a broadband reduction of third-octave band sound power level up to 6dB(A).

Item URL in elib:https://elib.dlr.de/49287/
Document Type:Conference or Workshop Item (Paper)
Title:Active CFRP-Panels for Reduction of Low-Frequency Turbulent Boundary Layer Noise
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Monner, Hans PeterUNSPECIFIEDUNSPECIFIED
Misol, MalteUNSPECIFIEDUNSPECIFIED
Algermissen, StephanUNSPECIFIEDUNSPECIFIED
Unruh, OliverUNSPECIFIEDUNSPECIFIED
Date:April 2010
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Keywords:ASAC, Active noise reduction, Boundary Layer Noise
Event Title:AIAA/ASME/ASCE/AHS/ASC
Event Location:Orlando, Florida
Event Type:international Conference
Event Dates:12. - 15. April 2010
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
DLR - Research theme (Project):L - Quiet Air Traffic (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Ries, Doris
Deposited On:09 Jul 2010 08:53
Last Modified:09 Jul 2010 08:53

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