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Inverse control applied to structural excitation systems

Norambuena, Marco and Winter, René and Biedermann, Jörn (2018) Inverse control applied to structural excitation systems. DAGA 2018 - 44. Jahrestagung für Akustik, 19.-22. Mrz. 2018, München. ISBN 978-3-939296-13-3

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Abstract

Accurate control over excitation sources is a necessary requirement for the study of structure-borne noise mechanisms. This is especially true when the main focus is set on the influence of real operational forces acting on the structure. Under laboratory tests, it is not always possible to have real operational conditions. A relevant case is an aircraft engine attached to a wing, where it is necessary to reproduce the operational forces on the structure without having an engine available. The defined task is to accurately reproduce excitation forces that were previously obtained from simulations. For this purpose, it is possible to use an adaptive controller to drive a shaker that will inject into the structure an exact copy of the reference forces already calculated. The main objective of the controller is to compensate the transfer function created between exciter and structure in order to generate the previously simulated loads at the attachment points. The following work presents the development of such adaptive controller and the laboratory tests performed in order to validate the proper operation of the system. As a first step in the development of the control system, a SISO controller is used in combination with a generic structure.

Item URL in elib:https://elib.dlr.de/122604/
Document Type:Conference or Workshop Item (Speech)
Title:Inverse control applied to structural excitation systems
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Norambuena, MarcoMarco.Norambuena (at) dlr.deUNSPECIFIED
Winter, Renérene.winter (at) dlr.deUNSPECIFIED
Biedermann, Jörnjoern.biedermann (at) dlr.deUNSPECIFIED
Date:2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
ISBN:978-3-939296-13-3
Status:Published
Keywords:active control, force control, structural excitation
Event Title:DAGA 2018 - 44. Jahrestagung für Akustik
Event Location:München
Event Type:national Conference
Event Dates:19.-22. Mrz. 2018
Organizer:DEGA - Deutsche Gesellschaft für Akustik
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: Norambuena, Dr. Marco
Deposited On:26 Nov 2018 15:57
Last Modified:26 Nov 2018 15:57

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