磁流變液夾層梁振動特性實驗研究.pdf

1、江蘇大學(xué)碩士學(xué)位論文磁流變液夾層梁振動特性實驗研究姓名：王冬兵申請學(xué)位級別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：胡白香20050604江蘇大學(xué)碩士學(xué)位論文AbstractTheresearchonMRfluidshadbeenattachedmoreimportancetOasalatemodelmaterialanditsfunctionhadalsobecomebroadBecauseofitsadvancedproperties，itis

2、widelyusedinaspectssuchaSfluiddrive，automobilereductionofvibration，machineryandhighrisebuilding，televisiontowerlongspangridstructureandlongspanbridgesemi—activecontrolofearthquakeinengineeringstructures，andSOonSpeciflcre

3、searchtopicsthatwillbefocusedonare：First，acomprehensivesurveyontheresearchstatusandhistoryofMagnetorheological(MR)fluidswillbefirstpresented，andalsopresentedsummaryofdevelopment，basicideas，anditscomposition，properties，me

4、chanisms，mechanicalmodelanditsapplicationsinengineeringarediscussedinthisarticlealsoSecond，forsimplysupportedandcantileversandwichbeamwithMRF$WCstudiedthevibrationbehaviorof／VlRFsandwichbeamfordifferentmagneticfield，anda

5、nalysistheeffectsofvibrationsuppressionofMRFcantileversimplysupportedandsandwichbeamfor～Ⅱ啦ThirdwestudiedvibrationbehaviorofMRFsandwichbeambyFEMmethod，constitutedtwodimensionalMRFmodel，formedunitematrixforrespectivelayers

6、，thensuperposed，andenducedMRFsandwichbeams’dynamicalequationBasedthese，westudiedthevibrationbehaviorofMRFsandwichbeamLast，beginwiththepropertiesofMRfluids，andconsideredMRfluidsasviscoelasticitymaterialwhensubjectedsmalld

7、eformation，smallandmediummagneticfield，basedonlinearviscoelasticitytheoryaccordingteferences【34】energymethodandfunctionalanalysis，westudiedvibrationcontrolequationofIVIRFsandwichbeamAndbasedOntheseequations，wegotthenatur