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Low-noise retrofit measures for mid-range transport aircraft: simulation benchmark with flyover noise measurements and assessment along different flight procedures

Bertsch, Lothar and Pott-Pollenske, Stephan-Michael and Wienke, Felix and Kurz, Joscha and Delfs, Jan W. (2023) Low-noise retrofit measures for mid-range transport aircraft: simulation benchmark with flyover noise measurements and assessment along different flight procedures. In: AIAA Aviation 2023 Forum, pp. 1-22. AIAA. AIAA Aviation Forum 2023, 2023-06-12 - 2023-06-16, San Diego, California, USA. doi: 10.2514/6.2023-3928. ISBN 978-1-62410-704-7.

Full text not available from this repository.

Official URL: https://arc.aiaa.org/doi/pdf/10.2514/6.2023-3928?download=true

Abstract

DLR has developed a specific low-noise retrofit add-on to reduce the noise generation on board of a conventional mid-range transportation aircraft, i.e., measures to the airframe and engine exhaust nozzle. Selected measures have been installed onboard of DLR’s flying testbed ATRA and been subject to a dedicated flyover noise campaign. The aircraft in its original configuration and the modified aircraft with the selected low-noise measures have been tested and measured in fly-over campaigns in 2016 and 2019, respectively. Simple initial simulation models have been derived from the results and previous component simulations and windtunnel tests to account for the new reduction measures within DLR’s system noise prediction tool PANAM. This paper presents the developed measures as selected for the flight test campaigns. An overview of the conducted flight tests is provided. The overall noise simulation process including aircraft and engine design, flight simulation, and noise prediction is presented. Simulation results obtained from this process are then compared to the measured levels from the flight campaigns. Estimated simulation uncertainties from PANAM are directly compared to differences between measured and simulated levels. Finally, a parameter study is conducted in order to assess the reduction potential of the novel retrofit measures along different simulated flight procedures. Spacial noise distribution in SEL contours is assessed.

Item URL in elib:https://elib.dlr.de/196464/
Document Type:Conference or Workshop Item (Speech)
Title:Low-noise retrofit measures for mid-range transport aircraft: simulation benchmark with flyover noise measurements and assessment along different flight procedures
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Bertsch, LotharUNSPECIFIEDhttps://orcid.org/0000-0003-2780-2858UNSPECIFIED
Pott-Pollenske, Stephan-MichaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wienke, FelixUNSPECIFIEDhttps://orcid.org/0000-0003-0081-1084UNSPECIFIED
Kurz, JoschaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Delfs, Jan W.UNSPECIFIEDhttps://orcid.org/0000-0001-8893-1747UNSPECIFIED
Date:16 June 2023
Journal or Publication Title:AIAA Aviation 2023 Forum
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI:10.2514/6.2023-3928
Page Range:pp. 1-22
Editors:
EditorsEmailEditor's ORCID iDORCID Put Code
UNSPECIFIEDAIAAUNSPECIFIEDUNSPECIFIED
Publisher:AIAA
Series Name:Conference proceedings
ISBN:978-1-62410-704-7
Status:Published
Keywords:aircraft noise, noise prediction, PANAM
Event Title:AIAA Aviation Forum 2023
Event Location:San Diego, California, USA
Event Type:international Conference
Event Start Date:12 June 2023
Event End Date:16 June 2023
Organizer:AIAA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Aircraft Technologies and Integration
Location: Braunschweig , Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, GO
Institute for Aerodynamics and Flow Technology > Technical Acoustics
Institute of Flight Systems > Flight Dynamics and Simulation
Deposited By: Koch, Bianca
Deposited On:23 Aug 2023 11:05
Last Modified:24 Apr 2024 20:56

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