Time-Frequency Analysis of Non-Stationary Ground Motions via Multivariate Empirical Mode Decomposition

Yan Wen Su; Guo Qing Huang; Liu Liu Peng

doi:10.4028/www.scientific.net/AMM.580-583.1734

Paper Titles

Study on Seismic Performance of Irregular RC Frame with Specially Shaped Columns
p.1712

Study on Seismic Response Characteristics of Step-Terrace Frame Structure on the Slope
p.1718

Study on Simplification Conditions of Curved Regular Bridges under Seismic Effect
p.1723

Study on the Characters of Seismic Response Spectra Based on China Financial Information Mansion
p.1729

Time-Frequency Analysis of Non-Stationary Ground Motions via Multivariate Empirical Mode Decomposition
p.1734

Study of Intake Tower under an Earthquake Using the Power Spectral Method Based on ANSYS
p.1742

Studies on Seismic Measures to Improve Masonry Infilled Wall
p.1746

A Suggestion to the Vertical Earthquake Action Stipulated in Seismic Design Specification
p.1750

Seismic Response Analysis for Assembled Precast Concrete Residence
p.1755

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 580-583Time-Frequency Analysis of Non-Stationary Ground...

Time-Frequency Analysis of Non-Stationary Ground Motions via Multivariate Empirical Mode Decomposition

Abstract:

In this paper, MEMD-based scalogram and coscalogram, and instantaneous frequency spectral are proposed to characterize the data derived from the multivariate non-stationary process. The scalogram and instantaneous frequency spectral capture spectral evolution of each component while the coscalogram reveals embedded intermittent correlation between two components. Compared with scale-based scalogram and coscalogram, frequency-based instantaneous frequency spectral provides more detailed portrayal for multivariate data. The effectiveness of the proposed MEMD-based time-frequency analysis framework is validated by numerical examples of uniformly and generally modulated ground motions.

You might also be interested in these eBooks

Advances in Civil and Industrial Engineering IV

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 580-583)

Pages:

1734-1741

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.580-583.1734

Citation:

Cite this paper

Online since:

July 2014

Authors:

Yan Wen Su, Guo Qing Huang*, Liu Liu Peng

Keywords:

Correlation, Hilbert Transform, Multivariate Empirical Mode Decomposition, Non-Stationary Ground Motions, Time-Frequency Analysis

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] N.E. Huang, Z. Shen, S.R. Long, et al. The empirical mode decomposition and the Hilbert spectral for nonlinear and non-stationary time series analysis. Proceedings of the Royal Society of London A, 454, 903-995. (1998).

DOI: 10.1098/rspa.1998.0193

Google Scholar

[2] N.E. Huang, Z. Shen and S.R. Long: submitted to Annual Review of Fluid Mechanics. (1999).

Google Scholar

[3] N. Rehman and D.P. Mandic: submitted to IEEE Transactions on Signal Processing. (2010a).

Google Scholar

[4] N. Rehman and D.P. Mandic: submitted to Proceedings of the Royal Society. (2010b).

Google Scholar

[5] G. Huang and X. Chen: submitted to Engineering Structures. (2009).

Google Scholar

[6] G. Deodatis: submitted to Journal of Engineering Mechanics. (1996).

Google Scholar

[7] P.D. Spanos and I.A. Kougioumtzoglou: submitted to Probabilistic Engineering Mechanics. (2012).

Google Scholar

[8] G. Huang, H. Liao and M. Li: submitted to Probabilistic Engineering Mechanics. (2013).

Google Scholar

[9] J.P. Conte. Effects of earthquake frequency nonstationarity on inelastic structural response. Proceedings of the 10th World Conference on Earthquake Engineering, A. A. Balkema: Rotterdam, The Netherlands, (1992).

Google Scholar