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dc.contributor.advisorJerome J. Connor.en_US
dc.contributor.authorNi, Sutengen_US
dc.contributor.otherMassachusetts Institute of Technology. Department of Civil and Environmental Engineering.en_US
dc.date.accessioned2013-12-06T20:46:08Z
dc.date.available2013-12-06T20:46:08Z
dc.date.copyright2013en_US
dc.date.issued2013en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/82821
dc.descriptionThesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2013.en_US
dc.descriptionCataloged from PDF version of thesis.en_US
dc.descriptionIncludes bibliographical references (p. 48-50).en_US
dc.description.abstractIn the last decade, the development of Structural Health Monitoring (SHM) has been skyrocketing because of the serious consequences that come with structural failure. Traditional damage detection techniques, also known as local damage detections, such as visual inspection and ultrasonic testing, have been implemented since the mid 20th century. However, these techniques often require prior knowledge of potential damage locations and require bulky testing equipment. Alternative techniques, the Global Vibration Techniques, were first introduced to analyze the modal information of the structure to assess its overall health state. The drawback of these methods is their insensitivity towards the incipient local damage. With the development of sensor technology, a local damage detection technique, the Electro-Mechanical Impedance (EMI) method, has emerged. EMI measures the electrical admittance by the impedance analyzer, and evaluates the health status of the structure by comparing the baseline signature with the damaged signature. It allows users to access the structure remotely, but it loses its sensitivity when the damage is significant. Therefore, Bhalla, Shanker and Gupta proposed integrating the Global Vibration Techniques with the EMI technique so as to tap on the strengths of the respective techniques. This new method, the Integration of Global Vibration Technique and EMI Technique, draws on EMI's high sensitivity towards early incipient damage and Global Vibration Techniques' sensitivity at late damage stages. The author further examines the integrated method in terms of practicality and scalability. With considerations of some sensor related issues, the author would not suggest to apply the method to real structures.en_US
dc.description.statementofresponsibilityby Suteng Ni.en_US
dc.format.extent51 p.en_US
dc.language.isoengen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsM.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582en_US
dc.subjectCivil and Environmental Engineering.en_US
dc.titleReview : integration of EMI technique with global vibration techniqueen_US
dc.title.alternativeIntegration of EMI technique with global vibration techniqueen_US
dc.title.alternativeIntegration of Electro-Mechanical Impedance technique with global vibration techniqueen_US
dc.typeThesisen_US
dc.description.degreeM.Eng.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Civil and Environmental Engineering
dc.identifier.oclc862819788en_US


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