Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/62907
Title: Identification of linear time-varying dynamic systems using Hilbert transform and empirical mode decomposition method
Authors: Shi, ZY
Law, SS
Issue Date: 2007
Publisher: American Society of Mechanical Engineers
Source: Journal of applied mechanics, 2007, v. 74, no. 2, p. 223-230 How to cite?
Journal: Journal of applied mechanics 
Abstract: This paper addresses the identification of linear time-varying multi-degrees-of-freedom systems. The identification approach is based on the Hilbert transform and the empirical mode decomposition method with free vibration response signals. Three-different types of time-varying systems, i.e., smoothly varying, periodically varying, and abruptly varying stiffness and damping of a linear time-varying system, are studied. Numerical simulations demonstrate the effectiveness and accuracy of the proposed method with single- and multi-degrees-of-freedom dynamical systems.
URI: http://hdl.handle.net/10397/62907
ISSN: 0021-8936
EISSN: 1528-9036
DOI: 10.1115/1.2188538
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