Study on the effect of external excitation and structural parameters identification using electro-mechanical impedance technique

162 p.

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Bibliographic Details
Main Author:	Miao, Aiwei
Other Authors:	Yang Yaowen
Format:	Theses and Dissertations
Published:	2014
Subjects:	DRNTU::Engineering::Civil engineering::Structures and design
Online Access:	http://hdl.handle.net/10356/58321
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Institution:	Nanyang Technological University

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spelling	sg-ntu-dr.10356-583212023-03-03T19:14:57Z Study on the effect of external excitation and structural parameters identification using electro-mechanical impedance technique Miao, Aiwei Yang Yaowen School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Structures and design 162 p. The advent of smart materials such as Lead Zirconate Titanate (PZT) has ushered a new era in the field of structural health monitoring (SHM) based on non-destructive evaluation (NDE). Exceptional advantages such as autonomous, real-time and online, remote monitoring may provide a cost-effective alternative to the conventional SHM techniques. Although piezoelectric material has been successfully used for structural damage detection in many areas, some fundamental research work such as the influence of the initial and external excitations of the main structure on the signature of PZT is still in need. In this study, the investigation starts with beam and plate structures. The fundamental formulation of electromechanical (EM) impedance method is derived for the simply supported and cantilevered beams and plates with excitations. The dynamic stiffness and EM impedance are obtained according to the model. In the experiment, aluminum beam and plate specimens bonded with PZT sensors are tested. The EM impedance of the sensor is measured by an HP 4192A impedance analyzer. The numerical simulations are also conducted to verify the developed models. Lastly, the experimental and numerical results are compared with the theoretical predictions to investigate the reliability of the models. Doctor of Philosophy (CEE) 2014-04-07T12:56:46Z 2014-04-07T12:56:46Z 2011 2011 Thesis http://hdl.handle.net/10356/58321 Nanyang Technological University application/pdf
institution	Nanyang Technological University
building	NTU Library
continent	Asia
country	Singapore Singapore
content_provider	NTU Library
collection	DR-NTU
topic	DRNTU::Engineering::Civil engineering::Structures and design
spellingShingle	DRNTU::Engineering::Civil engineering::Structures and design Miao, Aiwei Study on the effect of external excitation and structural parameters identification using electro-mechanical impedance technique
description	162 p.
author2	Yang Yaowen
author_facet	Yang Yaowen Miao, Aiwei
format	Theses and Dissertations
author	Miao, Aiwei
author_sort	Miao, Aiwei
title	Study on the effect of external excitation and structural parameters identification using electro-mechanical impedance technique
title_short	Study on the effect of external excitation and structural parameters identification using electro-mechanical impedance technique
title_full	Study on the effect of external excitation and structural parameters identification using electro-mechanical impedance technique
title_fullStr	Study on the effect of external excitation and structural parameters identification using electro-mechanical impedance technique
title_full_unstemmed	Study on the effect of external excitation and structural parameters identification using electro-mechanical impedance technique
title_sort	study on the effect of external excitation and structural parameters identification using electro-mechanical impedance technique
publishDate	2014
url	http://hdl.handle.net/10356/58321
_version_	1759854425371836416

Study on the effect of external excitation and structural parameters identification using electro-mechanical impedance technique

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