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Fully automated vibration measurements of aircraft fuselages in the mid-frequency range

Winter, Rene and Heyen, Simon and Böswald, Marc (2018) Fully automated vibration measurements of aircraft fuselages in the mid-frequency range. In: Proceedings of ISMA2018 International Conference on Noise and Vibration Engineering, pp. 1271-1281. ISMA 2018 - International Conference on Noise and Vibration Engineering, 17.-19. Sep. 2018, Leuven, Belgien. ISBN 9789073802995

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Abstract

In order to analyze the dynamic behavior of aircraft fuselage structures in the mid to high frequency range a large number of measurement positions is necessary. This is especially true if advanced methods of evaluation like structure intensity analysis (STI) are to be used. The amount of measurement positions necessary for the vibroacoustic evaluation of full sized aircraft fuselage structures has previously been shown to be in the order of multiple thousands requiring extensive measurement campaigns using hundreds of rowing sensors and a large team working for weeks. Presented here is a novel approach to Laser-Doppler-Vibrometer (LDV) based measurements of aircraft fuselages. A mobile laser scanning system capable of fully automatic vibration measurements of fuselage sections using a commercial single-point LDV was developed. The system can be deployed within the excited structure due to its vibration isolation and is able to autonomously match a predefined measurement geometry with the real structure using only a couple of reference markers.

Item URL in elib:https://elib.dlr.de/122572/
Document Type:Conference or Workshop Item (Speech)
Title:Fully automated vibration measurements of aircraft fuselages in the mid-frequency range
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Winter, Renerene.Winter (at) dlr.dehttps://orcid.org/0000-0003-2115-4001
Heyen, Simonsimon.heyen (at) dlr.deUNSPECIFIED
Böswald, Marcmarc.boeswald (at) dlr.dehttps://orcid.org/0000-0001-8260-8623
Date:2018
Journal or Publication Title:Proceedings of ISMA2018 International Conference on Noise and Vibration Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1271-1281
ISBN:9789073802995
Status:Published
Keywords:measurement automation, Laser-Doppler-Vibrometer, vibro-acoustics, mid-frequency range vibrations
Event Title:ISMA 2018 - International Conference on Noise and Vibration Engineering
Event Location:Leuven, Belgien
Event Type:international Conference
Event Dates:17.-19. Sep. 2018
Organizer:KU Leuven - Department of Mechanical Engineering
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 - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Structural Dynamics and System Identification
Deposited By: Winter, Rene
Deposited On:21 Nov 2018 10:05
Last Modified:26 Nov 2018 14:59

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