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A study on structural system identification and damage detection for free vibration response using the wavelet transform

Sahekhaini, Asnizah and Muhamad, Pauziah and Kohiyama, Masayuki and Abu, Aminuddin and Lee, Kee Quen and Abdullah, Hanida (2015) A study on structural system identification and damage detection for free vibration response using the wavelet transform. In: Applied Mechanics and Materials, 20 April, 2015, Korea.

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Official URL: https://www.scientific.net/AMM.752-753.1029

Abstract

This paper presents a wavelet-based method of identification modal parameter and damage detection in a free vibration response. An algorithm for modal parameter identification and damage detection is purposed and complex Morlet wavelet is chosen as an analysis wavelet function. This paper only focuses on identification of natural frequencies of the structural system. The method utilizes both undamaged and damage experiment data of free vibration response of the truss structure system. Wavelet scalogram is utilizes for damage detection. The change of energy components for undamaged and damage structure is investigated from the plot of wavelet scalogram which corresponded to the detection of damage.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:damage detection, system identification
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Malaysia-Japan International Institute of Technology
ID Code:67131
Deposited By: Fazli Masari
Deposited On:15 Jun 2017 07:17
Last Modified:06 Jul 2017 00:49

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