Stabilizing effects of speed fluctuations on the dynamic response of rolling element bearings with radial clearances

Lioulios, AN; Antoniadis, IA

dc.contributor.author	Lioulios, AN	en
dc.contributor.author	Antoniadis, IA	en
dc.date.accessioned	2014-03-01T02:50:12Z
dc.date.available	2014-03-01T02:50:12Z
dc.date.issued	2005	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34954
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-33244471369&partnerID=40&md5=30520e3c7f6e0ae489a9025655f1bce0	en
dc.subject.other	Radial clearances	en
dc.subject.other	Rolling element bearings	en
dc.subject.other	Stabilizing effects	en
dc.subject.other	Lyapunov methods	en
dc.subject.other	Natural frequencies	en
dc.subject.other	Rolling	en
dc.subject.other	Rotors	en
dc.subject.other	Speed	en
dc.subject.other	Bearings (machine parts)	en
dc.title	Stabilizing effects of speed fluctuations on the dynamic response of rolling element bearings with radial clearances	en
heal.type	conferenceItem	en
heal.publicationDate	2005	en
heal.abstract	A horizontal balanced rotor supported on ball bearings with radial internal clearance, subjected to rotational speed fluctuations is modeled. The dynamic model takes under consideration contact forces derived by the hertzian theory of elasticity between the balls and the races, the effect of varying compliance, the internal radial clearance and the rotor's speed fluctuations. The effect of variation in speed fluctuations is examined for periodic, unstable periodic and chaotic responses with the use of frequency distributions, higher order Poincare maps, and Lyapunov exponents. All results presented show a dominant stabilization effect of the speed fluctuations to the system behavior. From the analysis performed, it is concluded that even a minimum fluctuation of the rotor speed may result to major changes of the system dynamics, indicating that speed fluctuations of the rotor are a governing parameter to the dynamic behavior of the system. Copyright © 2005 by ASME.	en
heal.journalName	Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference - DETC2005	en
dc.identifier.volume	1 B	en
dc.identifier.spage	1417	en
dc.identifier.epage	1424	en