Blasting Vibration Signal Analysis Based on Hilbert-Huang Transform

Dong Li; Fang Xiang; Hao Quan Liu; Tao Guo; Guang Hua Wu

doi:10.4028/www.scientific.net/KEM.474-476.2279

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 474-476Blasting Vibration Signal Analysis Based on...

Blasting Vibration Signal Analysis Based on Hilbert-Huang Transform

Abstract:

This paper introduces the empirical mode decomposition and Hilbert transform principle. The validity and superiority of Hilbert—Huang transform is proved by MATLAB simulation experiment on computer. Finally, HHT method is used to analyze the collected blasting vibration signal as an example. Research shows that EMD method can process this kind of non-stationary signal such as blasting vibration effectively. Each IMF component decomposed by EMD has clear physical meaning. IMF is determined by signal itself. It has no base function and is adaptive. It can extract main characteristics of signal change and is suitable for analysis of blasting vibration signal which has the features of fast mutation and attenuation. The distribution of time-frequency-energy can be quantitatively described by HHT.

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Periodical:

Key Engineering Materials (Volumes 474-476)

Pages:

2279-2285

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.474-476.2279

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Online since:

April 2011

Authors:

Dong Li, Fang Xiang, Hao Quan Liu, Tao Guo, Guang Hua Wu

Keywords:

Blasting Vibration, Empirical Mode Decomposition (EMD), Hilbert-Huang Transform (HHT), Intrinsic Mode Function (IMF)

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