Some new instability aspects for nonconservative systems under follower loads

Kounadis, AN

dc.contributor.author	Kounadis, AN	en
dc.date.accessioned	2014-03-01T01:08:33Z
dc.date.available	2014-03-01T01:08:33Z
dc.date.issued	1991	en
dc.identifier.issn	0020-7403	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10561
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0025808477&partnerID=40&md5=9a0e4aa8f8812a291351ed1f08a72491	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Mechanics	en
dc.subject.other	Computers--Applications	en
dc.subject.other	Mathematical Models	en
dc.subject.other	Stresses--Analysis	en
dc.subject.other	Structural Analysis--Dynamic Response	en
dc.subject.other	Vibrations--Damping	en
dc.subject.other	Autonomous Non-Dissipative Structural Systems	en
dc.subject.other	Flutter Instability	en
dc.subject.other	Follower Loads	en
dc.subject.other	Nonconservative Systems	en
dc.subject.other	Nonlinear Dynamic Analysis	en
dc.subject.other	Pre-critical Deformation	en
dc.subject.other	Mechanisms	en
dc.title	Some new instability aspects for nonconservative systems under follower loads	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1991	en
heal.abstract	The mechanism of instability of nonlinear nonconservative discrete systems under follower loads with or without pre-critical deformation is thoroughly re-examined with the aid of a complete nonlinear dynamic analysis. Considering the stability of motion in the large, in the sense of Lagrange, the critical (divergence or dynamic) load is defined as the minimum load for which an unbounded (divergent) motion is initiated. Regions which have been considered (on the basis of linearized analyses) as of flutter instability are found (using a nonlinear dynamic analysis) dynamically stable. Some new instability phenomena contradict existing findings which have been widely accepted. Moreover, it is established that the divergence buckling loads, obtained by static methods of analysis, coincide with the nonlinear dynamic loads only in the case of no pre-critical deformation. Cases of random-like (or chaotic-like) motions for certain values of the nonconservativeness loading parameter are also revealed for autonomous non-dissipative structural systems. © 1991.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Mechanical Sciences	en
dc.identifier.isi	ISI:A1991FL96100004	en
dc.identifier.volume	33	en
dc.identifier.issue	4	en
dc.identifier.spage	297	en
dc.identifier.epage	311	en