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Detecting the position of non-linear component in periodic structures from the system responses to dual sinusoidal excitations

Peng, Z.K. and Lang, Z.Q. (2007) Detecting the position of non-linear component in periodic structures from the system responses to dual sinusoidal excitations. International Journal of Non-Linear Mechanics, 42 (9). pp. 1074-1083. ISSN 0020-7462

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Abstract

Based on the Nonlinear Output Frequency Response Functions (NOFRFs), a novel method is developed to detect the position of nonlinear components in periodic structures. The detection procedure requires exciting the nonlinear systems twice using two sinusoidal inputs separately. The frequencies of the two inputs are different; one frequency is twice as high as the other one. The validity of this method is demonstrated by numerical studies. Since the position of a nonlinear component often corresponds to the location of defect in periodic structures, this new method is of great practical significance in fault diagnosis for mechanical and structural systems.

Item Type: Article
Copyright, Publisher and Additional Information: © 2007 Elsevier. This is an author produced version of a paper published in International Journal of Non-Linear Mechanics . 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: 17 Jan 2008 09:46
Last Modified: 08 Feb 2013 16:55
Published Version: http://dx.doi.org/10.1016/j.ijnonlinmec.2007.06.00...
Status: Published
Publisher: Pergamon-Elsevier Science Ltd
Identification Number: 10.1016/j.ijnonlinmec.2007.06.002
URI: http://eprints.whiterose.ac.uk/id/eprint/3583

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