Experimental/numerical acoustic correlation of helicopter unsteady MANOEUVRES

Title

Experimental/numerical acoustic correlation of helicopter unsteady MANOEUVRES

 Author

Gennaretti, Massimo (University of Roma Tre)
Bernardini, Giovanni (University of Roma Tre)
Hartjes, S. (TU Delft Air Transport & Operations)
Scandroglio, Alessandro (Leonardo Helicopters)
Riviello, Luca (Leonardo Helicopters)
Paolone, Enrico (Leonardo Helicopters)

Date

2016

 Abstract

This paper presents one of the main objective of WP1 of Clean Sky GRC5 MANOEUVRES project, which consists in the correlation of ground noise data measured during flight tests, with numerical predictions obtained by a numerical process aimed at the analysis of the acoustic field emitted by helicopter rotors in arbitrary unsteady manoeuvring flight. Two of the helicopter trajectories analysed by the dedicated GRC5 flight test campaign are considered. Noise measurements obtained by microphones located on the ground at several positions along and aside the ground projection of the vehicle fly-over trajectory are used for correlation. The numerical simulation starts with the aeromechanic identification of the flown trajectory, followed by the corresponding prediction of aerodynamic loads, rotor noise radiation and far field atmospheric propagation.


 To reference this document use:

http://resolver.tudelft.nl/uuid:c8454c3a-1fc8-4688-902b-46718f071b66

 Publisher

3AF

 ISBN

9781510839144

 Source

42nd European Rotorcraft Forum 2016, 1

 Event

42nd European Rotorcraft Forum 2016, 2016-09-05 → 2016-09-08, Lille, France

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

© 2016 Massimo Gennaretti, Giovanni Bernardini, S. Hartjes, Alessandro Scandroglio, Luca Riviello, Enrico Paolone
Files
PDF 20170831152906.pdf 7.89 MB
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