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Uncertainty Quantification of Noise Abatement Flight Procedures

Olsman, W.F.J. (2015) Uncertainty Quantification of Noise Abatement Flight Procedures. 41st European Rotorcraft Forum, 1-4 September 2015, Munich, Germany.

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Abstract

Noise abatement flight procedures are usually designed under the assumption that the resulting flight path will be executed by the pilot with very high accuracy. A previous investigation, however, has shown that ven though the flight path is accurately controlled there still is a significant spread in the measured noise metric on the ground. The statistical values obtained in these flight tests are used in this paper to investigate the influence of uncertainty in the position, velocity and wind. The results indicate that the velocity along the flight path plays a dominant role in the resulting statistical properties of the noise metric on the ground. Furthermore it is shown that uncertainty in the velocity has a significant impact on benefit obtained by noise abatement flight procedures. This indicates the need to include uncertainty into the optimisation process. The results of the uncertainty quantification could also be used to compare different flight procedures in terms of robustness.

Item URL in elib:https://elib.dlr.de/98260/
Document Type:Conference or Workshop Item (Speech)
Title:Uncertainty Quantification of Noise Abatement Flight Procedures
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Olsman, W.F.J.jurrien.olsman (at) dlr.deUNSPECIFIED
Date:1 September 2015
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Helicopter noise, noise abatement flight procedure, uncertainty quantification
Event Title:41st European Rotorcraft Forum
Event Location:Munich, Germany
Event Type:international Conference
Event Dates:1-4 September 2015
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 Quiet und Comfortable Rotorcraft
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Helicopters
Deposited By: Olsman, WFJ
Deposited On:22 Sep 2015 08:40
Last Modified:22 Sep 2015 08:40

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