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TECHNICAL PAPERS

Identification of Nonlinear Systems Through Time-frequency Filtering Technique

[+] Author and Article Information
Lili Wang

State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences; Beijing, P.R. ChinaInstitute of Applied Physics and Computational Mathematics, Beijing, P. R. China

Jinghui Zhang, Chao Wang, Shiyue Hu

Civil College, Xi’an Jiaotong University, Xi’an, P.R. China

J. Vib. Acoust 125(2), 199-204 (Apr 01, 2003) (6 pages) doi:10.1115/1.1545769 History: Received September 01, 2000; Revised September 01, 2002; Online April 01, 2003
Copyright © 2003 by ASME
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References

Figures

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Grayscale view of the modulus of quadratic time-frequency distribution (in dB) (a) ρy(t)/ay(t) (b) ρẏ(t)/a(t) (c) ρÿ(t)/a(t)
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The frequency and damping skeleton curves of example 1 (identified result: dot; theoretical value: line)
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Grayscale view of the modulus of ρy(t)/ay(t)
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The frequency and damping skeleton curves of example 2 (identified result: dot; theoretical value: line)
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Cross-section of the damper
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The dynamic parameters versus the amplitude of response

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