On the paradox of the destabilizing effect of damping in non-conservative systems

Kounadis, AN

dc.contributor.author	Kounadis, AN	en
dc.date.accessioned	2014-03-01T01:08:59Z
dc.date.available	2014-03-01T01:08:59Z
dc.date.issued	1992	en
dc.identifier.issn	0020-7462	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10770
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0026895812&partnerID=40&md5=5042afb9189cb08bb6d727750985cc11	en
dc.subject.classification	Mechanics	en
dc.subject.other	Dynamic Response	en
dc.subject.other	Elasticity	en
dc.subject.other	Equations of Motion	en
dc.subject.other	Linearization	en
dc.subject.other	Nonlinear Equations	en
dc.subject.other	Stability	en
dc.subject.other	Damping Coefficients	en
dc.subject.other	Destabilizing Effect	en
dc.subject.other	Nonconservative Elastic System	en
dc.subject.other	Variation Region	en
dc.subject.other	Damping	en
dc.title	On the paradox of the destabilizing effect of damping in non-conservative systems	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1992	en
heal.abstract	The nature of the critical states of a follower-type non-conservative elastic system with or without damping, is reexamined using a non-linear dynamic analysis. It is found that the destabilizing effect due to certain ratios of damping coefficients, regarded for a long time as a ""paradox"", is associated with globally stable critical states. However, in the case of equal damping coefficients, the increase of damping increases the critical load (stabilizing effect). It is also established that this system is statically and dynamically stable for the entire region of variation of the non-conservativeness load parameter, contrary to existing analyses. Moreover, it is deduced that the critical states corresponding to both types of instability may become unstable if a slight material non-linearity is included; then, the mechanism of divergence and flutter instability change from stable to unstable and vice versa for a critical value of the material non-linearity which depends on the non-conservativeness loading parameter. © 1992.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Non-Linear Mechanics	en
dc.identifier.isi	ISI:A1992JD01800008	en
dc.identifier.volume	27	en
dc.identifier.issue	4	en
dc.identifier.spage	597	en
dc.identifier.epage	609	en