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Uncertainty Quantification for Aircraft Noise Emission Simulation: Methods and Limitations

Römer, Ulrich and Bertsch, Lothar and Mulani, Sameer B. and Schäffer, Beat (2022) Uncertainty Quantification for Aircraft Noise Emission Simulation: Methods and Limitations. AIAA Journal, 60 (5), pp. 3020-3034. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.J061143. ISSN 0001-1452.

[img] PDF - Postprint version (accepted manuscript)

Official URL: https://arc.aiaa.org/doi/full/10.2514/1.J061143


Implementing measures for the reduction of aircraft noise impact, such as optimization of flight paths and aircraft, requires sophisticated simulation capabilities. These tools have to incorporate simulation of aircraft noise generation at the source (i.e., emission) and account for prevailing sound propagation effects to ultimately predict noise levels as received on the ground. Obviously, understanding the associated uncertainties is crucial when aiming at a reliable and meaningful assessment. It also becomes essential when comparing different technologies, mixing experimental and numerical data, or using simulation methods of different fidelity (e.g., semi-empirical and first order methods). This research focuses on quantifying uncertainties in the first step in aircraft noise simulation (i.e., the prediction of the emission situation). The quantified uncertainties reflect imperfections of models for different aircraft noise sources and variability of model input parameters at different operating conditions. A general framework is presented, which also accounts for limited knowledge of the underlying data distributions, and quantitative comparisons of different uncertainty methods are provided. In particular, the first order second-moment analysis is compared to higher-order polynomial chaos methods, and the advantages and disadvantages of the different methods are discussed.

Item URL in elib:https://elib.dlr.de/143829/
Document Type:Article
Title:Uncertainty Quantification for Aircraft Noise Emission Simulation: Methods and Limitations
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Römer, UlrichTU Braunschweighttps://orcid.org/0000-0002-1277-7509UNSPECIFIED
Bertsch, LotharUNSPECIFIEDhttps://orcid.org/0000-0003-2780-2858UNSPECIFIED
Mulani, Sameer B.University of AlabamaUNSPECIFIEDUNSPECIFIED
Date:23 March 2022
Journal or Publication Title:AIAA Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 3020-3034
EditorsEmailEditor's ORCID iDORCID Put Code
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:aircraft system noise, noise prediction, uncertainty quantification, FOSM, MC, PANAM
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Air Transportation and Impact
DLR - Research area:Aeronautics
DLR - Program:L AI - Air Transportation and Impact
DLR - Research theme (Project):L - Air Transport Operations and Impact Assessment
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Helicopter, GO
Deposited By: Carter, Beatrice
Deposited On:30 May 2022 17:11
Last Modified:28 Feb 2024 11:24

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