Haase, Thomas and Algermissen, Stephan and Monner, Hans Peter (2013) Active Control of Counter Rotating Open Rotor Interior Noise. AIA-DAGA 2013 – Conference on Acoustics, 18. - 21.03.2013, Meran, Italien.
Full text not available from this repository.
Abstract
Future aircrafts have to meet the restrictive fuel consumption guidelines of the European Committee. Therefore lightweight materials like carbon fibre reinforced plastics (CFRP) and new engine concepts are investigated. Counter Rotating Open Rotors (CROR) are a very promising approach for a more efficient aircraft. But in combination with a CFRP fuselage the interior noise levels will be increased dramatically because of the high pressures on the fuselage and the low transmission loss of CFRP. In this work active concepts as a lightweight compliant solution will experimentally investigated to improve the acoustic comfort of future aircrafts. A typical aircraft sidewall panel is therefore realized in a sound transmission loss facility and will be controlled actively by a feedforward control system. The panel is excited by a typical multi tonal pressure field which is generated by a speaker array. This preliminary study shows that an active structural acoustic control system can effectively improve the acoustic comfort inside the cabin.
Item URL in elib: | https://elib.dlr.de/83470/ | ||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||||||
Title: | Active Control of Counter Rotating Open Rotor Interior Noise | ||||||||||||||||
Authors: |
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Date: | March 2013 | ||||||||||||||||
Refereed publication: | No | ||||||||||||||||
Open Access: | No | ||||||||||||||||
Gold Open Access: | No | ||||||||||||||||
In SCOPUS: | No | ||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||
Status: | Published | ||||||||||||||||
Keywords: | Sound field synthesis, CROR, feedforward, control | ||||||||||||||||
Event Title: | AIA-DAGA 2013 – Conference on Acoustics | ||||||||||||||||
Event Location: | Meran, Italien | ||||||||||||||||
Event Type: | international Conference | ||||||||||||||||
Event Dates: | 18. - 21.03.2013 | ||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
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: | Böhringer-Thelen, Isolde | ||||||||||||||||
Deposited On: | 25 Jul 2013 13:46 | ||||||||||||||||
Last Modified: | 25 Jul 2013 13:46 |
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