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Some methods to determine scaled mode shapes in natural input modal analysis

dc.contributor.authorAenlle López, Manuel 
dc.contributor.authorBrincker, Rune
dc.contributor.authorFernández Canteli, Alfonso Carlos 
dc.date.accessioned2015-07-08T09:29:36Z
dc.date.available2015-07-08T09:29:36Z
dc.date.issued2005
dc.identifier.urihttp://hdl.handle.net/10651/31557
dc.descriptionIMAC-XXIII: Conference & Exposition on Structural Dynamics - Structural Health Monitoringspa
dc.description.abstractWhen the modal model is going to be used for structural modification or for structural response simulation, the scaled mode shapes must be known. If natural input modal analysis is performed, only un-scaled mode shapes can be obtained and an extra method is necessary to obtain the scaling factor. In this paper, two new methods based on mass change are proposed. The first method involves small mass changes in two repeated tests allowing to achieve good accuracy. The second method involves only one mass change and enables the scaling factors of both the modified and unmodified mode shapes to be obtained. Finally, the effect of the normalization used in the mode shapes and the accuracy of each method are analyzed by simulation
dc.language.isoengspa
dc.rightsCC Reconocimiento - No comercial - Sin obras derivadas 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleSome methods to determine scaled mode shapes in natural input modal analysisspa
dc.typeconference outputspa
dc.rights.accessRightsopen access
dc.type.hasVersionAM


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CC Reconocimiento - No comercial - Sin obras derivadas 4.0 Internacional
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