Using targeted energy transfer to stabilize drill-string systems

Viguie, R; Kerschen, G; Golinval, JC; McFarland, DM; Bergman, LA; Vakakis, AF; Van De Wouw, N

dc.contributor.author	Viguie, R	en
dc.contributor.author	Kerschen, G	en
dc.contributor.author	Golinval, JC	en
dc.contributor.author	McFarland, DM	en
dc.contributor.author	Bergman, LA	en
dc.contributor.author	Vakakis, AF	en
dc.contributor.author	Van De Wouw, N	en
dc.date.accessioned	2014-03-01T02:51:18Z
dc.date.available	2014-03-01T02:51:18Z
dc.date.issued	2007	en
dc.identifier.issn	21915644	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35454
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-84861553589&partnerID=40&md5=68c2cd72eae252d53182f8e09b467536	en
dc.subject.other	Aeroelastic system	en
dc.subject.other	Broadband vibration	en
dc.subject.other	Complex interaction	en
dc.subject.other	Computational tools	en
dc.subject.other	Drill strings	en
dc.subject.other	Drill-string system	en
dc.subject.other	Drilling operation	en
dc.subject.other	Nonlinear energy sink	en
dc.subject.other	Oil and gas well	en
dc.subject.other	Physical interpretation	en
dc.subject.other	Primary structures	en
dc.subject.other	Rock cutting	en
dc.subject.other	Self-excited motion	en
dc.subject.other	Torsional vibration	en
dc.subject.other	Van der Pol	en
dc.subject.other	Vibrational energies	en
dc.subject.other	Drilling machines (machine tools)	en
dc.subject.other	Energy transfer	en
dc.subject.other	Natural gas wells	en
dc.subject.other	Structural dynamics	en
dc.subject.other	Rock drilling	en
dc.title	Using targeted energy transfer to stabilize drill-string systems	en
heal.type	conferenceItem	en
heal.publicationDate	2007	en
heal.abstract	Torsional vibration of the drill strings used in drilling oil and gas wells arises from a complex interaction of the dynamics of the drilling structure with speed-dependent effective rock-cutting forces. These forces are often difficult to model, and contribute substantially to the problems of controlling the drilling operation so as to produce steady cutting. We consider here the use of a nonlinear energy sink (NES), an attachment which has been shown to be effective in reducing or even eliminating self-excited motions in van der Pol and aeroelastic systems. The NES is a completely passive, inherently broadband vibration absorber capable of attracting and dissipating vibrational energy from primary structures, in this case nonlinear discontinuous models of drill-string systems. In this paper we describe a prototypical drill string-NES system, briefly discuss some of the analytical and computational tools suitable for its analysis, and then concentrate on mathematical results on the efficacy of the NES in this application and their physical interpretation.	en
heal.journalName	Conference Proceedings of the Society for Experimental Mechanics Series	en