基于應變頻響函數的結構損傷識別

1、武漢理工大學碩士學位論文基于應變頻響函數的結構損傷識別姓名：張楨申請學位級別：碩士專業(yè)：橋梁與隧道工程指導教師：姜增國20050501ABSTRACTTheincreasingloadlevelandevergrowingtransportationaddtotheextensionofservicetimeinbridgestructures，makemostexistingbridgescannotsarisfymodernized

2、transportationdemandInthisregard，structuraldamagedetectionhasbeenthehottesttopicincivilengineering；however，itisofgreatsignificanceintheorydevelopmentandrealisticapplicationResearchhasbeenimplementedonthecomputationalcomp

3、arisonregardingnewlypresentedindicatorsaswellaSseveraltraditionalcounterpartsusingnumericalmethodsAlso，severaluncertainties，suchasmeasurementnoise，differentforcelocation，incompletemeasurementinformation，andfrequencyrange

4、s，areinvolvedinconsiderationSpecificprogresseswhichhavebeenmadeinthispaperarelistedchapterbychapterasbelow：Inthefirstchapter，thepurposeandsignificanceofthispaperarediscussedwiththeinvolvementofthelatestdevelopmentinStruc

5、turalHealthMonitoring(SHM)，homeandabroadMoreimportantly，problemsexistinginthecurrentmethodsarepresentedasaguideforfurtherresearchinthepaperInthesecondchapter，areviewisfiguredoutincludingstructuralstaticloadtests，vibratio

6、nexcitationmethodanddynamicparametermeasurementtechniquesFurthermore，severalcrucialquestions，intermsofoptimaltransducerplacementandincompletemodaldatafordamagedetection，areproposedEspeciallythebyproductofincompletemeasur

7、ementregardingtransmissionzerosalededucedtosomeextentInaddition，modalbaseddetectionandtestingtechniques，anddamagetypesarewellsummarizedandcategorizedInmetllirdchapterdamageidentificationtheoriesusingmodaldata，flexibility

8、matrix，residualforcevector，andfrequencyresponsefunctionarepresented，incorporatingthreenoveltyindicators(MACs仃f，COMACs舯，andStrainFrequencyResponseFunctionCurvatureRatio)Subsequently，frequencyresponsefunctionofMultiDOFsyst