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dc.contributor.authorSong, Yuzh_CN
dc.contributor.authorJin, Haizh_CN
dc.contributor.author金海zh_CN
dc.date.accessioned2015-07-22T02:02:55Z
dc.date.available2015-07-22T02:02:55Z
dc.date.issued2008zh_CN
dc.identifier.citationSENSORS AND SMART STRUCTURES TECHNOLOGIES FOR CIVIL, MECHANICAL, AND AEROSPACE SYSTEMS 2008, PTS 1 AND 2, 2008,6932zh_CN
dc.identifier.otherWOS:000257062100113zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/85464
dc.descriptionConference Name:Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems. Conference Address: San Diego, CA. Time:MAR 10-13, 2008.zh_CN
dc.description.abstractDamage detection is the core technique of bridge health monitoring systems. Mostly, the detection is based on comparison of initial signatures (frequency, mode shapes and so on) of intact bridge with that of damaged bridge. The damage identification technique for bridge structure by vibration mode analysis is based on the precision of modal experiment. In order to identify the damage in time, the problem of sensor placement is very important. The number of the sensors and their settled locations determine the accuracy of test results. So how to distribute sensors reasonably to get the appropriate information about the changes of structure state of the bridge is the key for the health monitoring to large span bridges. Taking an actual long span Bridge as an example and calculating the modal date by the finite element model, a method based on the eigenvector sensitivity, the El (Effective Independence) method and MAC (Modal Assurance Criterion) method are used to optimize the placement procedure of the sensors in this paper. The numerical example shows that the eigenvector sensitivity based method is an effective method for optimal sensor placement to identify vibration characteristics of the bridges.zh_CN
dc.language.isoen_USzh_CN
dc.publisherPROC SPIEzh_CN
dc.source.urihttp://dx.doi.org/10.1117/12.776049zh_CN
dc.subjectPARAMETER-IDENTIFICATIONzh_CN
dc.subjectLOCATIONSzh_CN
dc.titleA sensitivity based method for sensor placement optimization of bridgeszh_CN
dc.typeConferencezh_CN


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