The Application of HHT Method Used in the Anchor Bolt Testing Signal

DOI

10.2991/iccasm.2012.279How to use a DOI?

Keywords

Anchor bolt, HHT, Time-Frequency Analysis

Abstract

When varying degrees defects existing in the anchorage system, energy decreasing and frequency mutation can be caused during the acoustic waves propagation. We can get the instantaneous frequency of the signal by processing the analysis of anchor bolt testing signal using the method of HHT (Hilbert-Huang Transform), then we derive the accurate expression of its frequency varying over time. In addition, we can obtained the Time-Frequency distribution of the energy in three-dimensional space (which also known as the distribution of Hilbert) on the basis of the expression. The analysis results of the simulated signal and actual signals (measurement signals) indicated that the HHT method can collect the effective information Comparatively accurate thus validate that this method can apply to anchor bolt testing signals with variable energy and frequency preferably.

Copyright

© 2012, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Linsong Wang
AU  - Junmin Wang
AU  - Mingzhang Luo
AU  - Chao Chen
AU  - Qiuge Wang
PY  - 2012/08
DA  - 2012/08
TI  - The Application of HHT Method Used in the Anchor Bolt Testing Signal
BT  - Proceedings of the 2012 International Conference on Computer Application and System Modeling (ICCASM 2012)
PB  - Atlantis Press
SP  - 1099
EP  - 1102
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccasm.2012.279
DO  - 10.2991/iccasm.2012.279
ID  - Wang2012/08
ER  -