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Linear parameter estimation for multi-degree-of-freedom nonlinear systems using nonlinear output frequency-response functions

Peng, Z.K., Lang, Z.Q. and Billings, S.A. (2007) Linear parameter estimation for multi-degree-of-freedom nonlinear systems using nonlinear output frequency-response functions. Mechanical Systems and Signal Processing, 21 (8). pp. 3108-3122. ISSN 0888-3270

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Abstract

The Volterra series approach has been widely used for the analysis of nonlinear systems. Based on the Volterra series, a novel concept named Nonlinear Output Frequency Response Functions (NOFRFs) was proposed by the authors. This concept can be considered as an alternative extension of the classical frequency response function for linear systems to the nonlinear case. In this study, based on the NOFRFs, a novel algorithm is developed to estimate the linear stiffness and damping parameters of multi-degree-of-freedom (MDOF) nonlinear systems. The validity of this NOFRF based parameter estimation algorithm is demonstrated by numerical studies.

Item Type: Article
Copyright, Publisher and Additional Information: © 2007 Elsevier. This is an author produced version of a paper published in Mechanical Systems and Signal Processing. Uploaded in accordance with the publisher's self-archiving policy.
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Automatic Control and Systems Engineering (Sheffield)
Depositing User: Sherpa Assistant
Date Deposited: 18 Dec 2007 16:40
Last Modified: 08 Feb 2013 16:55
Published Version: http://dx.doi.org/10.1016/j.ymssp.2007.04.009
Status: Published
Publisher: Elsevier
Refereed: Yes
Identification Number: 10.1016/j.ymssp.2007.04.009
URI: http://eprints.whiterose.ac.uk/id/eprint/3533

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