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Active buckling control of a beam-column with circular cross-section using piezo-elastic supports and integral LQR control

Schaeffner, Maximilian ; Götz, Benedict ; Platz, Roland (2021)
Active buckling control of a beam-column with circular cross-section using piezo-elastic supports and integral LQR control.
In: Smart Materials and Structures, 25 (6)
doi: 10.26083/tuprints-00017750
Article, Secondary publication, Postprint

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Item Type: Article
Type of entry: Secondary publication
Title: Active buckling control of a beam-column with circular cross-section using piezo-elastic supports and integral LQR control
Language: English
Date: 2021
Place of Publication: Darmstadt
Publisher: IOP
Journal or Publication Title: Smart Materials and Structures
Volume of the journal: 25
Issue Number: 6
DOI: 10.26083/tuprints-00017750
Corresponding Links:
Origin: Secondary publication service
Abstract:

Buckling of slender beam-columns subject to axial compressive loads represents a critical design constraint for light-weight structures. Active buckling control provides a possibility to stabilize slender beam-columns by active lateral forces or bending moments. In this paper, the potential of active buckling control of an axially loaded beam-column with circular solid cross-section by piezo-elastic supports is investigated experimentally. In the piezo-elastic supports, lateral forces of piezoelectric stack actuators are transformed into bending moments acting in arbitrary directions at the beam-column ends. A mathematical model of the axially loaded beam-column is derived to design an integral linear quadratic regulator (LQR) that stabilizes the system. The effectiveness of the stabilization concept is investigated in an experimental test setup and compared with the uncontrolled system. With the proposed active buckling control it is possible to stabilize the beam-column in arbitrary lateral direction for axial loads up to the theoretical critical buckling load of the system.

Status: Postprint
URN: urn:nbn:de:tuda-tuprints-177500
Additional Information:

Accepted Manuscript

Classification DDC: 600 Technology, medicine, applied sciences > 600 Technology
600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 16 Department of Mechanical Engineering > Research group System Reliability, Adaptive Structures, and Machine Acoustics (SAM)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 805: Control of Uncertainty in Load-Carrying Structures in Mechanical Engineering
TU-Projects: DFG|SFB805|TP C7 Melz
DFG|SFB805|C2 Mechanische, mech
Date Deposited: 26 Mar 2021 14:53
Last Modified: 28 Jul 2023 10:04
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/17750
PPN: 478531737
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