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Signal processing for time domain analysis of impact hammer test data

conference contribution
posted on 2016-01-01, 00:00 authored by Ali Ay, Y Wang, Sui Yang KhooSui Yang Khoo
The impact-hammer test is a widely known non-destructive vibration testing method to extract the modal parameters of a dynamic system. Due to the fast development of computing, timedomain analysis for data interpretation is now receiving increased attention. To provide normalised and denoised data, appropriate signal processing is indispensable. This paper presents a practical study on data normalisation and denoising. Specifically, discrete wavelet transform (DWT) denoising filter and weighted moving average (WMA) filter are applied in sequence for denoising. The signal processing results on the impact hammer test of a steel frame are shown to demonstrate the effectiveness of the proposed methodology.

History

Event

Structural Health Monitoring. European Workshop (2016 : 8th : Balbao, Spain)

Volume

1

Pagination

628 - 637

Publisher

NDT.net

Location

Balbao, Spain

Place of publication

Bad Breisig, Germany

Start date

2016-07-05

End date

2016-07-08

ISBN-13

9781510827936

Language

eng

Publication classification

E Conference publication; E1 Full written paper - refereed

Copyright notice

2016, NDT.net

Title of proceedings

EWSHM 2016 : Proceedings of the 8th European Workshop on Structural Health Monitoring

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