Aeroelastic and acoustic analysis for active twist rotors

Thepvongs, S; Cesnik, CES; Voutsinas, SG

dc.contributor.author	Thepvongs, S	en
dc.contributor.author	Cesnik, CES	en
dc.contributor.author	Voutsinas, SG	en
dc.date.accessioned	2014-03-01T02:49:59Z
dc.date.available	2014-03-01T02:49:59Z
dc.date.issued	2005	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34851
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-33746639674&partnerID=40&md5=070b9f40ef34ce8171c46ee4f914dee7	en
dc.subject.other	Acoustics	en
dc.subject.other	Aerodynamics	en
dc.subject.other	Data acquisition	en
dc.subject.other	Structural analysis	en
dc.subject.other	Time domain analysis	en
dc.subject.other	Vortex flow	en
dc.subject.other	Active twist rotors	en
dc.subject.other	Blade section normal force	en
dc.subject.other	Flight condition	en
dc.subject.other	Particle-wake	en
dc.subject.other	Helicopter rotors	en
dc.title	Aeroelastic and acoustic analysis for active twist rotors	en
heal.type	conferenceItem	en
heal.publicationDate	2005	en
heal.abstract	This paper presents an analysis framework for aeroelastic and acoustic studies of active twist rotors. An indirect tightly coupled aeroelastic solution is developed by combining a geometrically exact structural analysis with a panel method/particle-wake aerodynamic model in the time domain. Predictions are compared with experimental data for the low-speed descent flight condition. Good agreement is obtained for elastic response, blade section normal force, and tip vortex geometry. Acoustic pressure impulses due to blade-vortex interactions are under-predicted. The effect of active twist on interaction miss distance is explored.	en
heal.journalName	31st European Rotorcraft Forum	en
dc.identifier.volume	2005	en
dc.identifier.spage	124.1	en
dc.identifier.epage	124.10	en