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Robust Damping in Self-Excited Mechanical Systems

Jekel, Dominic ; Clerkin, Eoin ; Hagedorn, Peter (2016)
Robust Damping in Self-Excited Mechanical Systems.
In: Proceedings in Applied Mathematics and Mechanics (PAMM), 16 (1)
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

A technique to optimize the stability of a general mechanical system is outlined. The method relies on decomposing the damping matrix into several component matrices, which may have some special structure or physical relevance. An optimization problem can then be formulated where the ratio of these are varied to either stabilize or make more stable the equilibrium state subject to sensible constraints. For the purpose of this study, we define a system to be more stable if its eigenvalue with largest real part is as negative as possible. The technique is demonstrated by applying it to an introduced non-dimensionalized variant of a known minimal wobbling disc brake model. In this case, it is shown to be beneficial to shift some damping from the disc to the pins for a system optimized for stability.

Typ des Eintrags: Artikel
Erschienen: 2016
Autor(en): Jekel, Dominic ; Clerkin, Eoin ; Hagedorn, Peter
Art des Eintrags: Bibliographie
Titel: Robust Damping in Self-Excited Mechanical Systems
Sprache: Englisch
Publikationsjahr: Oktober 2016
Verlag: John Wiley and Sons
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Proceedings in Applied Mathematics and Mechanics (PAMM)
Jahrgang/Volume einer Zeitschrift: 16
(Heft-)Nummer: 1
Veranstaltungstitel: Joint Annual Meeting of DMV and GAMM
Veranstaltungsort: Braunschweig, Germany
Veranstaltungsdatum: 7-11 March 2016
URL / URN: http://onlinelibrary.wiley.com/doi/10.1002/pamm.201610336/fu...
Kurzbeschreibung (Abstract):

A technique to optimize the stability of a general mechanical system is outlined. The method relies on decomposing the damping matrix into several component matrices, which may have some special structure or physical relevance. An optimization problem can then be formulated where the ratio of these are varied to either stabilize or make more stable the equilibrium state subject to sensible constraints. For the purpose of this study, we define a system to be more stable if its eigenvalue with largest real part is as negative as possible. The technique is demonstrated by applying it to an introduced non-dimensionalized variant of a known minimal wobbling disc brake model. In this case, it is shown to be beneficial to shift some damping from the disc to the pins for a system optimized for stability.

Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Dynamik und Schwingungen
Exzellenzinitiative
Exzellenzinitiative > Graduiertenschulen
Exzellenzinitiative > Graduiertenschulen > Graduate School of Computational Engineering (CE)
Zentrale Einrichtungen
Hinterlegungsdatum: 01 Nov 2016 07:58
Letzte Änderung: 03 Jun 2018 21:28
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