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Proceedings Paper

A comparative study on book shelf structure based on different domain modal analysis
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Paper Abstract

Structural Health Monitoring (SHM) based on the vibration of structures has been very attractive topic for researchers in different fields such as: civil, aeronautical and mechanical engineering. The aim of this paper is to compare three most common modal identification techniques such as Frequency Domain Decomposition (FDD), Stochastic Subspace Identification (SSI) and Continuous Wavelet Transform (CWT) to find modal properties (such as natural frequency, mode shape and damping ratio) of three story book shelf steel structure which was built in Concordia University Lab. The modified Complex Morlet wavelet have been selected for wavelet in order to use asymptotic signal rather than real one with variable bandwidth and wavelet central frequency. So, CWT is able to detect instantaneous modulus and phase by use of local maxima ridge detection.

Paper Details

Date Published: 8 May 2017
PDF: 10 pages
Proc. SPIE 10170, Health Monitoring of Structural and Biological Systems 2017, 101703B (8 May 2017); doi: 10.1117/12.2260025
Show Author Affiliations
Ardalan Sabamehr, Concordia Univ. (Canada)
Timir Baran Roy, Concordia Univ. (Canada)
Ashutosh Bagchi, Concordia Univ. (Canada)

Published in SPIE Proceedings Vol. 10170:
Health Monitoring of Structural and Biological Systems 2017
Tribikram Kundu, Editor(s)

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