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Active structural acoustic control with a loudness optimized actuator placement

Papantoni, Veatriki and Rose, Michael and Monner, Hans Peter and Sinapius, Michael (2015) Active structural acoustic control with a loudness optimized actuator placement. AST 2015 Workshop on Aircraft System Technologies, 24.-25. Feb. 2015, Hamburg, Deutschland. (In Press)

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Abstract

One of the main objectives of efficient aircraft design, alongside safety and fuel consumption, is interior comfort. One significant factor in the overall comfort as perceived by the passengers is the noise in the aircraft cabin. This paper presents the results of a psychoacoustical analysis of various inflight recordings during cruise flight. Based on the results of this analysis the psychoacoustic loudness is identified as the most distinctive psychoacoustic metric, result which is consistent with the scientific literature. Using this finding the psychoacoustic loudness resulting from a vibroacoustically excited structure is used as the objective for the placement of the actuators in an active structural acoustic control system. This system is compared to the more conventional method of using the sound power radiated by an excited structure as the objective for the actuator placement. The comparison is conducted using a numerical pre-design tool for optimal active structural acoustic control of a simple plate structure.

Item URL in elib:https://elib.dlr.de/95368/
Document Type:Conference or Workshop Item (Speech)
Title:Active structural acoustic control with a loudness optimized actuator placement
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Papantoni, VeatrikiInstitut für Faserverbundleichtbau und Adaptronik - AdaptronikUNSPECIFIED
Rose, MichaelUNSPECIFIEDUNSPECIFIED
Monner, Hans PeterUNSPECIFIEDUNSPECIFIED
Sinapius, MichaelUNSPECIFIEDUNSPECIFIED
Date:February 2015
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:In Press
Keywords:ASAC, psychoacooustics, actuator placement
Event Title:AST 2015 Workshop on Aircraft System Technologies
Event Location:Hamburg, Deutschland
Event Type:international Conference
Event Dates:24.-25. Feb. 2015
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
Location: Hamburg
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Papantoni, Veatriki
Deposited On:02 Mar 2015 08:03
Last Modified:02 Mar 2015 08:03

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