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Free-Decay Nonlinear System Identification via Mass-Change Scheme
Joint Authors
Anastasio, Dario
Marchesiello, S.
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-07
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Methods for nonlinear system identification of structures generally require input-output measured data to estimate the nonlinear model, as a consequence of the noninvariance of the FRFs in nonlinear systems.
However, providing a continuous forcing input to the structure may be difficult or impracticable in some situations, while it may be much easier to only measure the output.
This paper deals with the identification of nonlinear mechanical vibrations using output-only free-decay data.
The presented method is based on the nonlinear subspace identification (NSI) technique combined with a mass-change scheme, in order to extract both the nonlinear state-space model and the underlying linear system.
The technique is tested first on a numerical nonlinear system and subsequently on experimental measurements of a multi-degree-of-freedom system comprising a localized nonlinearity.
American Psychological Association (APA)
Anastasio, Dario& Marchesiello, S.. 2019. Free-Decay Nonlinear System Identification via Mass-Change Scheme. Shock and Vibration،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1210970
Modern Language Association (MLA)
Anastasio, Dario& Marchesiello, S.. Free-Decay Nonlinear System Identification via Mass-Change Scheme. Shock and Vibration No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1210970
American Medical Association (AMA)
Anastasio, Dario& Marchesiello, S.. Free-Decay Nonlinear System Identification via Mass-Change Scheme. Shock and Vibration. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1210970
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1210970