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Towards an uncertainty analysis for parametric aircraft system noise prediction

Bertsch, Lothar and Schäffer, Beat and Guerin, Sebastien (2017) Towards an uncertainty analysis for parametric aircraft system noise prediction. 12th Congress of the International Commission on Biological Effects of Noise, 18.-22. Juni 2017, Zürich, Schweiz.

Full text not available from this repository.

Official URL: http://www.icben.org/2017/ICBEN%202017%20Papers/SubjectArea08_Bertsch_0806_3937.pdf

Abstract

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 parametlic 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 valiation 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 metlics are presented in this contlibution.

Item URL in elib:https://elib.dlr.de/111164/
Document Type:Conference or Workshop Item (Speech)
Title:Towards an uncertainty analysis for parametric aircraft system noise prediction
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Bertsch, LotharLothar.Bertsch (at) dlr.dehttps://orcid.org/0000-0003-2780-2858
Schäffer, BeatEmpa, Laboratory for Acoustics & Noise Control, �Uberlandstr. 129, CH-8600 D�ubendorf, SwitzerlandUNSPECIFIED
Guerin, Sebastiensebastien.guerin (at) dlr.deUNSPECIFIED
Date:2017
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Aircraft noise prediction, simulation result uncertainty
Event Title:12th Congress of the International Commission on Biological Effects of Noise
Event Location:Zürich, Schweiz
Event Type:international Conference
Event Dates:18.-22. Juni 2017
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: Bachmann, Barbara
Deposited On:02 Aug 2017 13:52
Last Modified:23 Aug 2018 13:03

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