Application of wavelet transform for the impulse response of pile

Sheng Huoo Ni, Yu Zhang Yanga, Chia Rong Lyu

研究成果: Article同行評審

4 引文 斯高帕斯(Scopus)

摘要

The purpose of this paper is to study the capabilities of the impulse response method in length and flaw detecting for concrete piles and provide a suggested method to find small-sizeflaws in piles. In this work, wavelet transform is used to decompose the recorded time domain signal into a series of levels. These levels are narrowband, so the mix of different dominant bandwidths can be avoided. In this study, the impulse response method is used to analyze the signal obtained from the wavelet transform to improve the judgment of the flaw signal so as to detect the flaw location. This study provides a new wayof thinking in non-destructive testing detection. The results show that the length of a pile is easy to be detected in the traditional reflection time or frequency domain method. However, the small flaws within pile are difficult to be found using these methods. The proposed approach in this paper is able to greatly improve the results of small-size flaw detection within pilesby reducing the effects of anynoise and clarifyingthe signal in the frequency domains.

原文English
頁(從 - 到)513-521
頁數9
期刊Smart Structures and Systems
19
發行號5
DOIs
出版狀態Published - 2017

All Science Journal Classification (ASJC) codes

  • 控制與系統工程
  • 電腦科學應用
  • 電氣與電子工程

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