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Uncertainty analysis for parametric aircraft system noise prediction

Bertsch, Lothar and Schäfer, Beat and Guerin, Sebastien (2019) Uncertainty analysis for parametric aircraft system noise prediction. Journal of Aircraft, 56 (2), pp. 529-544. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.C034809 ISSN 0021-8669

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Official URL: https://arc.aiaa.org/doi/abs/10.2514/1.C034809


Parametric noise assessment in the context of low-noise aircraft design and flight procedure optimization has been around for more than 15 years. Continuous improvement of the models and the interconnection to other simulation tools, such as aircraft design codes, allow today's models to capture the major noise sources and relevant interactions along arbitrary simulated flights. Modem simulation processes even enable a fully automated aircraft design with integrated noise prediction capabilities. In contrast, reliable and comprehensive uncertainty analysis of the overall aircraft noise prediction process has not been available for parametric tools in the past. This paper will present ongoing DLR activities to assess the Overall uncertainty of its in-hause simulation process. The goal of the presented analysis is to define a general approach to specify uncertainties on the ground noise levels as predicted by a parametric system noise prediction tool, i.e. PANAM. This approach will allow to discuss the temporal and the spacial distribution of the uncertainties. Certain areas along a flight path are afflicted with different uncertainties than others. The impact on exposure-response relationships due to the variation in uncertainty will be discussed, i.e. the influence of varying noise source dominance along the simulated flights. Initial results of uncertainties along typical flight procedures and their Impact on selected metrics are presented in this contribution.

Item URL in elib:https://elib.dlr.de/114859/
Document Type:Article
Additional Information:ISSN 0021-8669 (print) or 1533-3868 (online)
Title:Uncertainty analysis for parametric aircraft system noise prediction
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bertsch, Lotharlothar.bertsch (at) dlr.dehttps://orcid.org/0000-0003-2780-2858
Guerin, SebastienSebastien.Guerin (at) dlr.deUNSPECIFIED
Date:1 March 2019
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.2514/1.C034809
Page Range:pp. 529-544
UNSPECIFIEDAerospace Research Central
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:Noise prediction, simulation uncertainty, PANAM, system noise
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 - Simulation and Validation
Location: Berlin-Charlottenburg , Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, GO
Institute of Propulsion Technology > Engine Acoustic
Deposited By: Bertsch, Dr.-Ing. Lothar
Deposited On:26 Jan 2018 15:16
Last Modified:08 Apr 2019 03:56

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