Suppression of aeroelastic instability with a nonlinear energy sink: Theory

Lee, YS; Vakakis, AF; Bergman, LA; McFarland, DM; Kerschen, G

dc.contributor.author	Lee, YS	en
dc.contributor.author	Vakakis, AF	en
dc.contributor.author	Bergman, LA	en
dc.contributor.author	McFarland, DM	en
dc.contributor.author	Kerschen, G	en
dc.date.accessioned	2014-03-01T02:50:54Z
dc.date.available	2014-03-01T02:50:54Z
dc.date.issued	2006	en
dc.identifier.issn	02734508	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35193
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-34147141933&partnerID=40&md5=fcecf6c2f487b65665cbcdcdc3605f6e	en
dc.subject.other	Limit cycle oscillations (LCO)	en
dc.subject.other	Self excited systems	en
dc.subject.other	Structural damage	en
dc.subject.other	Aircraft	en
dc.subject.other	Airfoils	en
dc.subject.other	Energy transfer	en
dc.subject.other	Failure analysis	en
dc.subject.other	Speed control	en
dc.subject.other	Aerodynamics	en
dc.title	Suppression of aeroelastic instability with a nonlinear energy sink: Theory	en
heal.type	conferenceItem	en
heal.publicationDate	2006	en
heal.abstract	Limit cycle oscillations (LCOs) commonly require restrictions on the operation of high-performance aircraft and have the potential to cause structural damage or failure. This paper summarizes recent theoretical findings on the application of passive and targeted nonlinear energy transfer (""nonlinear energy pumping"") for the reduction or elimination of LCOs in self-excited systems. This NES has been used successfully to suppress LCOs of an elastically mounted, rigid airfoil in flow. The theoretical results are in agreement with experimental studies of a practical airfoil with an attached NES. These experimental results, presented in full in a separate paper, verify the capacity of the NES to reduce or even eliminate these undesired oscillations and to extend the operating speed range of the wing.	en
heal.journalName	Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference	en
dc.identifier.volume	5	en
dc.identifier.spage	3158	en
dc.identifier.epage	3168	en