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dc.contributor.supervisor Wu, Nan (Mechanical Engineering) en_US
dc.contributor.author Zhao, Shengjie
dc.date.accessioned 2016-09-08T20:46:23Z
dc.date.available 2016-09-08T20:46:23Z
dc.date.issued 2015 en_US
dc.date.issued 2015-12-24 en_US
dc.identifier.citation S. Zhao, N. Wu, Y. Cheng, High Sensitivity Damage Detection With Vibration Mode Shape Tuning Through the Optimal Design of Piezoelectric Actuators, in: ASME 2015 International Mechanical Engineering Congress and Exposition, American Society of Mechanical Engineers, 2015, pp. V04BT04A038-V004BT004A038. en_US
dc.identifier.citation S. Zhao, N. Wu, Q. Wang, Damage Detection of Beams by a Vibration Characteristic Tuning Technique Through an Optimal Design of Piezoelectric Layers, International Journal of Structural Stability and Dynamics, (2015) 1550070. en_US
dc.identifier.uri http://hdl.handle.net/1993/31652
dc.description.abstract Following the studies of natural frequency based damage detection methods, an advanced technique for damage detection and localization in beam-type structures using a vibration characteristic tuning procedure is developed by an optimal design of piezoelectric materials. Piezoelectric sensors and actuators are mounted on the surface of the host beam to generate excitations for the tuning via a feedback process. The excitations induced by the piezoelectric effect are used to magnify the effect of the damage on the change of the natural frequencies of the damaged structure to realize the high detection sensitivity. Based on the vibration characteristic tuning procedure, a scan-tuning methodology for damage detection and localization is proposed. From analytical simulations, both crack and delamination damage in the beams are detected and located with over 20% change in the natural frequencies. Finite element method (FEM) simulations are conducted to verify the effectiveness of the proposed methodology. en_US
dc.publisher ASME 2015 International Mechanical Engineering Congress and Exposition en_US
dc.publisher International Journal of Structural Stability and Dynamics en_US
dc.subject Damage identification en_US
dc.subject Vibration characteristic tuning en_US
dc.subject Piezoelectric actuators en_US
dc.title Natural frequency based damage identification of beams using piezoelectric materials en_US
dc.degree.discipline Mechanical Engineering en_US
dc.contributor.examiningcommittee Deng, Chuang (Mechanical Engineering) Jiang, Changmin (Supply Chain Management) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note October 2016 en_US


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