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
Artikel, Zweitveröffentlichung, Postprint
Kurzbeschreibung (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.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2021 |
| Autor(en): | Schaeffner, Maximilian ; Götz, Benedict ; Platz, Roland |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Active buckling control of a beam-column with circular cross-section using piezo-elastic supports and integral LQR control |
| Sprache: | Englisch |
| Publikationsjahr: | 2021 |
| Verlag: | IOP |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Smart Materials and Structures |
| Jahrgang/Volume einer Zeitschrift: | 25 |
| (Heft-)Nummer: | 6 |
| DOI: | 10.26083/tuprints-00017750 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/17750 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichungsservice |
| Kurzbeschreibung (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 |
| Zusätzliche Informationen: | Accepted Manuscript |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 16 Fachbereich Maschinenbau 16 Fachbereich Maschinenbau > Fachgebiet Systemzuverlässigkeit, Adaptronik und Maschinenakustik (SAM) DFG-Sonderforschungsbereiche (inkl. Transregio) DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 805: Beherrschung von Unsicherheit in lasttragenden Systemen des Maschinenbaus |
| TU-Projekte: | DFG|SFB805|TP C7 Melz DFG|SFB805|C2 Mechanische, mech |
| Hinterlegungsdatum: | 26 Mär 2021 14:53 |
| Letzte Änderung: | 30 Mär 2021 05:44 |
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