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Numerical investigation of power flow input into a fuselage due to jet engine induced wing vibrations

Zettel, Sebastian Florens and Winter, Rene and Norambuena, Marco and Klimmek, Thomas and Böswald, Marc (2022) Numerical investigation of power flow input into a fuselage due to jet engine induced wing vibrations. INTER-NOISE 2022, 21.-24. Aug. 2022, Glasgow, UK. ISBN 978-1-906913-42-7.

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Official URL: https://az659834.vo.msecnd.net/eventsairwesteuprod/production-inconference-public/a2f8f1cab7e84c7ba192c062b703dd4c

Abstract

The wings of passenger aircrafts are constantly vibrating due to various loads. There are transient low-frequency vibrations caused by gust loads. But there are also higher-frequency vibrations caused by the vibration load of the jet engines. The higher-frequency stationary vibrations of the wing are partially introduced as a power flow into the fuselage and radiated there as sound, which is then perceived as noise. In this work, which is part of the EU CleanSky2 framework, this chain of effects is being investigated in more detail aiming for the quantification of the vibrational power flow input into the fuselage by utilizing structural intensity. In this paper, numerical investigations are carried out on FEM models of an Airbus A320 wing generated with a parametric model generator. First, the structural components mainly responsible for the power transmission are identified, and second, the magnitude of the power input into the fuselage is determined in dependence of the pylon position along the wing. The engine vibrations are approximated by a custom-developed model. In the further course of the project, these numerical results will be validated by a test campaign. For this purpose, a real wing of an A320 is available as a test structure

Item URL in elib:https://elib.dlr.de/187993/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical investigation of power flow input into a fuselage due to jet engine induced wing vibrations
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Zettel, Sebastian FlorensSebastian.Zettel (at) dlr.deUNSPECIFIED
Winter, Renerene.Winter (at) dlr.dehttps://orcid.org/0000-0003-2115-4001
Norambuena, MarcoMarco.Norambuena (at) dlr.deUNSPECIFIED
Klimmek, ThomasThomas.Klimmek (at) dlr.dehttps://orcid.org/0000-0002-5573-7355
Böswald, Marcmarc.boeswald (at) dlr.dehttps://orcid.org/0000-0001-8260-8623
Date:24 August 2022
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
ISBN:978-1-906913-42-7
Status:Published
Keywords:Vibroacoustics, FEM, Structural Intensity Analysis
Event Title:INTER-NOISE 2022
Event Location:Glasgow, UK
Event Type:international Conference
Event Dates:21.-24. Aug. 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Virtual Aircraft and  Validation
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Structural Dynamics and System Identification
Institute of Aeroelasticity > Loads Analysis and Aeroelastic Design
Deposited By: Winter, Rene
Deposited On:25 Aug 2022 18:02
Last Modified:14 Sep 2022 11:28

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