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Control of instabilities induced by low-velocity collisions in a vibro-impacting system with friction
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, Fordonsdynamik.
2009 (Engelska)Ingår i: Vibro-Impact Dynamics of Ocean Systems and Related Problems, 2009, s. 41-52Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

The onset of low-velocity collisions in vibro-impacting systems induces instabilities in the system dynamics that, when not checked, may result in sudden, and unanticipated discontinuous transitions between distinct steady-state responses. This paper illustrates this phenomenology in an example system that includes dry friction. Here, the instability is associated with the zero-velocity contact of an oscillatory unilateral constraint and a stationary mass suspended through a preloaded spring. The analysis summarizes observations on the passive response of the mass under variations in the oscillation amplitude of the constraint. A control strategy is subsequently shown to successfully suppress the instability. The paper concludes with suggestions for applications of this phenomenology as well as a description of similar observation in mechanical systems with or without friction and with rigid as well as compliant contact.

Ort, förlag, år, upplaga, sidor
2009. s. 41-52
Serie
Lecture Notes in Applied and Computational Mechanics, ISSN 1613-7736 ; 44
Nyckelord [en]
Compliant contacts, Control strategies, Discontinuous transition, Low-velocity collision, Oscillation amplitude, Steady-state response, Unilateral constraints, Vibro-impacting systems, Friction, Tribology
Nationell ämneskategori
Annan teknik
Identifikatorer
URN: urn:nbn:se:kth:diva-152723DOI: 10.1007/978-3-642-00629-6_5ISI: 000267756000005Scopus ID: 2-s2.0-73149095145ISBN: 978-3-642-00628-9 (tryckt)OAI: oai:DiVA.org:kth-152723DiVA, id: diva2:754171
Konferens
International Symposium on Dynamics of Vibro-Impact Systems, Oct 01-03, 2008, Troy, MI, USA
Anmärkning

QC 20141009

Tillgänglig från: 2014-10-09 Skapad: 2014-10-01 Senast uppdaterad: 2014-10-09Bibliografiskt granskad

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Totalt: 113 träffar
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