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Accurate structural excitation through adaptive control

Norambuena, Marco and Winter, René and Biedermann, Jörn (2018) Accurate structural excitation through adaptive control. In: Proceedings of ISMA 2018 International Conference on Noise and Vibration Engineering, pp. 1503-1513. 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 study the phenomena that surrounds structure-borne noise mechanisms, it is necessary to have complete control over the structural excitation source, or equivalently, control over the forces injected into a structure. In other words, it is necessary to accurately reproduce operational forces on the structure under study. The control over the excitation source is usually managed simply by defining a desired input signal with a particular amplitude or frequency profile. However, this approach is rather incomplete since the profile defined does not take into account the modifications resulting from the interaction between source and structure. If the idea is to inject into the structure an exact copy of a reference force signal, an active controller can be used prior to the amplification stage in order to adjust amplitude and phase to obtain such copy of the reference force at the injection point on the structure. The following work describes the adaptive controller implemented for such an objective and discusses test results obtained in the laboratory.

Item URL in elib:https://elib.dlr.de/122602/
Document Type:Conference or Workshop Item (Poster)
Title:Accurate structural excitation through adaptive control
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
Journal or Publication Title:Proceedings of ISMA 2018 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. 1503-1513
ISBN:9789073802995
Status:Published
Keywords:active control, force control, structural excitation
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: Norambuena, Dr. Marco
Deposited On:26 Nov 2018 14:48
Last Modified:26 Nov 2018 15:52

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