Vibration modes and natural frequencies of saddle form cable nets

Vassilopoulou, I; Gantes, CJ

dc.contributor.author	Vassilopoulou, I	en
dc.contributor.author	Gantes, CJ	en
dc.date.accessioned	2014-03-01T01:34:50Z
dc.date.available	2014-03-01T01:34:50Z
dc.date.issued	2010	en
dc.identifier.issn	0045-7949	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20889
dc.subject	Cable net	en
dc.subject	Deformable edge ring	en
dc.subject	Modal transition	en
dc.subject	Vibration modes	en
dc.subject.classification	Computer Science, Interdisciplinary Applications	en
dc.subject.classification	Engineering, Civil	en
dc.subject.other	Antisymmetric mode	en
dc.subject.other	Cable net	en
dc.subject.other	Cable nets	en
dc.subject.other	Cable networks	en
dc.subject.other	Deformability	en
dc.subject.other	Deformable edge ring	en
dc.subject.other	Dynamic behaviours	en
dc.subject.other	Eigen frequencies	en
dc.subject.other	Eigen modes	en
dc.subject.other	Empirical formulas	en
dc.subject.other	Geometrical characteristics	en
dc.subject.other	Hyperbolic paraboloids	en
dc.subject.other	Modal transition	en
dc.subject.other	Multi degree-of-freedom	en
dc.subject.other	Non-dimensional parameters	en
dc.subject.other	Vibration modes	en
dc.subject.other	Cable supported roofs	en
dc.subject.other	Deformation	en
dc.subject.other	Frequency estimation	en
dc.subject.other	Natural frequencies	en
dc.subject.other	Vibrating conveyors	en
dc.subject.other	Cables	en
dc.title	Vibration modes and natural frequencies of saddle form cable nets	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.compstruc.2009.07.002	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.compstruc.2009.07.002	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	The objective of this paper is to investigate the dynamic behaviour of cable networks, in terms of their natural frequencies and the corresponding vibration modes. A multi-degree-of-freedom cable net model is assumed, having circular plan view and the shape of a hyperbolic paraboloid surface. The cable supports are considered either rigid or flexible, thus accounting for the deformability, of the edge ring. On the basis of numerical analyses, empirical formulae are proposed for the estimation of the linear natural frequencies, taking into account the mechanical and geometrical characteristics of the cable net and the ring, expressed in the form of appropriate non-dimensional parameters. The sequence of the symmetric and antisymmetric modes of the network and the occurrence of modal transition can be predicted in relation to one of these parameters, in analogy to single cables. The differences between a network with rigid cable supports and one with boundary ring, concerning the eigenmodes and the corresponding eigenfrequencies are identified. (C) 2009 Elsevier Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Computers and Structures	en
dc.identifier.doi	10.1016/j.compstruc.2009.07.002	en
dc.identifier.isi	ISI:000272569900011	en
dc.identifier.volume	88	en
dc.identifier.issue	1-2	en
dc.identifier.spage	105	en
dc.identifier.epage	119	en