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Aircraft Noise: The major sources, modelling capabilities, and reduction possibilities

Bertsch, Lothar and Simons, Dick G. and Snellen, Mirjam (2015) Aircraft Noise: The major sources, modelling capabilities, and reduction possibilities. DLR-Interner Bericht. DLR-IB 224-2015 A 110, 29 S.

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Official URL: https://doi.org/10.34912/ac-n0is3

Abstract

In October 2014, the first ”Joint DLR & TU Delft Aviation Noise Workshop” was organized. This publication is the executive summary of this event. Overall, 38 invited participants from industry, academia, and research institutions have discussed the specific topic of this first 3 day workshop, i.e ”Aircraft Noise Reduction at the Source”. Four specific tasks were formulated in order to address the problem, i.e. (1) identification of main aircraft noise sources on-board of a given reference vehicle, (2) assessment of simulation capabilities for noise prediction, (3) identification and assessment of promising noise reduction concepts for the reference vehicle, and (4) integration of these measures on-board of the reference vehicle. The major noise sources on-board of the reference vehicle as identified by the participants could have been reduced significantly if selected measures are installed on-board. These proposed measures promise to reduce the system noise by 8 dB along a take-off and by 10 dB along an approach flight. Yet, the almost 65% reduction in perceived noise as specified by ACARE’s Flight Path 2050 could not be achieved. The most effective measure has been identified as structural shielding of engine noise emission.

Item URL in elib:https://elib.dlr.de/95939/
Document Type:Monograph (DLR-Interner Bericht)
Title:Aircraft Noise: The major sources, modelling capabilities, and reduction possibilities
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bertsch, LotharLothar.Bertsch (at) dlr.dehttps://orcid.org/0000-0003-2780-2858
Simons, Dick G.Uni DelftUNSPECIFIED
Snellen, MirjamUni DelftUNSPECIFIED
Date:2015
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.34912/ac-n0is3
Number of Pages:29
Series Name:1st Joint DLR & TU Delft Aviation Noise Workshop
Status:Published
Keywords:aircraft noise, modelling, major sources, PANAM
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Virtual Aerodynamic Rotorcraft
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Deposited By: Micknaus, Ilka
Deposited On:28 Apr 2015 16:37
Last Modified:26 Feb 2020 09:29

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