Volume 27 Issue 增刊I
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DU Peng, SUN Zhi. WAVELET-BASED INSTANTANEOUS ROOT-MEAN-SQUARE RESPONSE ESTIMATION FOR SDOF SYSTEMS UNDER SEISMIC EXCITATION[J]. Engineering Mechanics, 2010, 27(增刊I): 122-126.
Citation: DU Peng, SUN Zhi. WAVELET-BASED INSTANTANEOUS ROOT-MEAN-SQUARE RESPONSE ESTIMATION FOR SDOF SYSTEMS UNDER SEISMIC EXCITATION[J]. Engineering Mechanics, 2010, 27(增刊I): 122-126.
shu

WAVELET-BASED INSTANTANEOUS ROOT-MEAN-SQUARE RESPONSE ESTIMATION FOR SDOF SYSTEMS UNDER SEISMIC EXCITATION

  • (State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China)

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  • Received Date: December 31, 1899
  • Revised Date: December 31, 1899
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  • This paper presents a wavelet-based approach for estimating the root-mean-square (RMS) response of a linear single-degree-of-freedom (SDOF) system under earthquake ground motions. The time-frequency characteristics of the ground motion are analyzed using the wavelet method. The instantaneous power spectral density function (PSDF) of the response has been derived and used to estimate the instantaneous RMS response of the system. Numerical study of a single-degree-of-freedom (SDOF) system is performed. The result shows that the wavelet method can estimate the structural instantaneous RMS responses accurately.
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