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BENCHMARK FOR MODELIZATION OF ACOUSTIC TRANSMISSION LOSS APPLIED TO HELICOPTER TRIM PANELS

Simon, Frank and Haase, Thomas and Unruh, Oliver and Ghiringhelli, Gian Luca and Parrinello, A. and Vescovini, R. (2016) BENCHMARK FOR MODELIZATION OF ACOUSTIC TRANSMISSION LOSS APPLIED TO HELICOPTER TRIM PANELS. In: Conference Proceedings of the European Rotorcraft Forum 2016. European Rotorcraft Forum (ERF), 05.-08. Sept. 2016, Lille, Frankreich.

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Official URL: http://www.erf2016.com/

Abstract

This paper describes the physical, mathematical and numerical approaches applied by laboratories of "Helicopter Garteur Action Group AG20" to vibro-acoustic behavior of helicopter trim-panels. The aim of this numerical activity is to conduct a benchmark study involving different models in order to estimate their framework for using for realistic trim panels. The calculated quantity is the acoustic transmission loss allowing to determine the efficiency of panels to reduce an incident noise. It represents the ratio between incident acoustic power, generally produced by a diffuse acoustic �eld, and the acoustic power radiated by the panel.

Item URL in elib:https://elib.dlr.de/106015/
Document Type:Conference or Workshop Item (Speech)
Title:BENCHMARK FOR MODELIZATION OF ACOUSTIC TRANSMISSION LOSS APPLIED TO HELICOPTER TRIM PANELS
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Simon, FrankOneraUNSPECIFIED
Haase, ThomasThomas.Haase (at) dlr.dehttps://orcid.org/0000-0002-9553-9628
Unruh, OliverOliver.Unruh (at) dlr.deUNSPECIFIED
Ghiringhelli, Gian LucaPolitecnico di MilanoUNSPECIFIED
Parrinello, A.Politecnico di MilanoUNSPECIFIED
Vescovini, R.Politecnico di MilanoUNSPECIFIED
Date:5 September 2016
Journal or Publication Title:Conference Proceedings of the European Rotorcraft Forum 2016
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Transmission loss, numerical Simulation, helicopter, trim panels
Event Title:European Rotorcraft Forum (ERF)
Event Location:Lille, Frankreich
Event Type:international Conference
Event Dates:05.-08. Sept. 2016
Organizer:3AF
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 - Systems and Cabin
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Adaptronics
Deposited By: Haase, Thomas
Deposited On:12 Sep 2016 07:22
Last Modified:31 Jul 2019 20:03

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