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Solar Impulse - Ground vibration testing and finite element model validation of a lightweight aircraft

Böswald, Marc and Vollan, Arne and Govers, Yves and Frei, Peter (2011) Solar Impulse - Ground vibration testing and finite element model validation of a lightweight aircraft. In: Proceedings "IFASD 2011". IFASD 2011 - 15th International Conference on Aeroelasticity and Structural Dynamics, 26 - 30 June 2011, Paris, Frankreich.

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Abstract

This paper addresses the challenges in ground vibration testing and in finite element model updating of superlight aircraft structures where the influence of the surrounding air on experimental modal data is no longer negligible. This so called apparent mass effect can lead to complex experimental mode shapes and to biased estimates for experimental damping ratios and experimental eigenfrequencies obtained from ground vibration test. It is essential that the effect of surrounding air on experimental modal data is properly understood to detect finite element model parameters that need to be adjusted while at the same time to avoid adjustment of unreasonable parameters in model updating.

Item URL in elib:https://elib.dlr.de/70277/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Solar Impulse - Ground vibration testing and finite element model validation of a lightweight aircraft
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Böswald, MarcUNSPECIFIEDUNSPECIFIED
Vollan, ArneAeroFEM GmbH Simulation and EngineeringUNSPECIFIED
Govers, YvesUNSPECIFIEDUNSPECIFIED
Frei, PeterSolar Impulse SAUNSPECIFIED
Date:2011
Journal or Publication Title:Proceedings "IFASD 2011"
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:ground vibration testing, apparent mass, model validation, model updating
Event Title:IFASD 2011 - 15th International Conference on Aeroelasticity and Structural Dynamics
Event Location:Paris, Frankreich
Event Type:international Conference
Event Dates:26 - 30 June 2011
Organizer:3AF
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:03 Nov 2011 11:20
Last Modified:31 Jul 2019 19:32

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