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Earthquake Barcode from a Single-Degree-of-Freedom System

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http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53068#.VLST2MnQrzE

Earthquake is a violent and irregular ground motion that can severely damage structures. In this paper we subject a single-degree-of-freedom system, consisting of spring and damper, to an earthquake excitation, and meanwhile investigate the response behavior from a novel theory about the dynamical system, by viewing the time-varying signum function of It can reflect the characteristic property of each earthquake through and the second component of f, where is a time-sampling record of the acceleration of a ground motion. The barcode is formed by plotting with respect to time. We analyze the complex jumping behavior in a barcode and an essential property of a high percentage occupation of the first set of dis-connectivity in the barcode from four strong earthquake records: 1940 El Centro earthquake, 1989 Loma earthquake, and two records of 1999 Chi-Chi earthquake. Through the comparisons of four earthquakes, we can observe that strong earthquake leads to large percentage of the first set of dis-connectivity.
Cite this paper
Liu, C. and Chang, C. (2015) Earthquake Barcode from a Single-Degree-of-Freedom System. Natural Science, 7, 18-31. doi: 10.4236/ns.2015.71003.
 

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http://dx.doi.org/10.1016/j.cnsns.2014.05.004            eww150113lx
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