基于應(yīng)變頻響函數(shù)的結(jié)構(gòu)損傷識(shí)別

1、武漢理工大學(xué)碩士學(xué)位論文基于應(yīng)變頻響函數(shù)的結(jié)構(gòu)損傷識(shí)別姓名：張楨申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：橋梁與隧道工程指導(dǎo)教師：姜增國(guó)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