高速铁路桥梁健康监测系统中传感器优化布置的-研究

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1、西南交通大学硕士研究生学位论文第1I页AbstractWiththehigh-speedrailwaypacedstudyofstructuralhealthmonitoringscheduleagain．Asanimportantpartplacementisthekeyofwhethercallintoagoldenperiodofdevelopment，thesystemofhigh-speedrailwaybridgeisputonofbridgehealthmonitoring，thesensoroptimalgetthebestcollectiono

2、fbridgehealthmonitoring．Atpresent，thestudyofsensoroptimalplacementinhigh-speedrailwaybridgehealthmonitoringislack，SOissystematictheoryresearchandpracticalapplications．Ontheotherhand，thestudyofsensoroptimalplacementofhighwaybridgehealthmonitoringisoftenaboutthequantityofsensorsorjusta

3、singlepartoptimal，theentireprocessofoptimalmode，whichisfromtheoptimizationofthenumberofsensorstotheoptimizationofthelocationofsensors，isstilldonotexist．Inthisthesis．severalsensoroptimalmethodsbasedonmodalanalysisaresummarizedcarefully．ItiSproposedthatfromthedecisionofwhattomonitoring

4、inbridgehealthmonitoringsystem，firstusingFisherInformationMatrixtooptimi。zethetargetofmodenumbers，thenoptimizethesensornumbersbasedonModalAssuranceCriterion，atlast，thelocationoptimizationofsensorisbasedonmodalanalysis．Atlast，NanjingDashengguanYangztefiverbridgeischoosed弱practicalexam

5、ple，anditsmodalanalysisisdonebasedonANSYS．EachmodeshapedateisextractedfromANSYS．Combinedwiththeproposedentireprocessoptimalmode，Matlabprogramisdevelopedandthearchfibandbridgedecksensorsareoptimiz．ed．keywords：high·speedsensors；modalanalysis；railway；healthmonitoringoptimizationofthetar

6、getofbridge；optimalplacementofmodenumber1．1．1高速铁路发展概况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1．2高速铁路桥梁结构特点与技术要求⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．21．1．3高速铁路桥梁健康监测系统研究的意义与特点⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．31．2高速铁路桥梁健康监测系统研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯41．2．1高速铁路桥梁健康监测特点⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．41．2．2高速铁路桥梁健康监测存在的问题⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯41．2．3高速铁路桥梁健康监测

7、系统设计⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．61．3传感器优化布置的研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯81．3．1传感器优化布置准则⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．81．3．2传感器优化布置方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯91．4本文主要研究内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯10第2章常用桥型的传感器布置⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．112．1连续梁桥的传感器布置⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ll2．1．1连续梁(刚构)桥的受力特点⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

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