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Identification of earthquake induced structural damage based on synchroextracting transform

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Several popular time-frequency techniques,including the Wigner-Ville distribution,smoothed pseudo-Wigner-Ville distribution,wavelet transform,synchrosqueezing transform,Hilbert-Huang transform,and Gabor-Wigner transform,are investigated to determine how well they can identify damage to structures.In this work,a synchroextracting transform(SET)based on the short-time Fourier transform is proposed for estimating post-earthquake structural damage.The performance of SET for artificially generated signals and actual earthquake signals is examined with existing methods.Amongst other tested techniques,SET improves frequency resolution to a great extent by lowering the influence of smearing along the time-frequency plane.Hence,interpretation and readability with the proposed method are improved,and small changes in the time-varying frequency characteristics of the damaged buildings are easily detected through the SET method.

cross-termdamage detectionearthquake signalsynchroextracting transformtime-frequency

Roshan Kumar、Gaurav Kumar、Wei Zhao、Arvind R Yadav、Gang Yu、Jayendra Kumar、Evans Amponsah

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Department of Electronic and Information Technology,Miami College of Henan University,Henan 475004,China

Alliance University,Alliance College of Engineering and Design,Banglore 562106,India

Department of Electronics and Comm,Parul University,Vadodra 391760,India

School of Electrical Engineering,University of Jinan,Jinan 250022,China

Department of Electronics and Comm,NIT Jamshedpur,Jamshedpur 831014,India

Department of Civil engineering,Kwame Nkrumah University of Science and Technology,Kumasi 10959,Ghana

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2024

10.1007/s11803-024-2249-5

地震工程与工程振动(英文版)
中国地震局工程力学研究所

地震工程与工程振动(英文版)

EI
影响因子：0.476
ISSN：1671-3664
年,卷(期)：2024.23(2)
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