環(huán)狀結(jié)構(gòu)渦激振動(dòng)的數(shù)值模擬和風(fēng)洞試驗(yàn)研究.pdf

1、西南交通大學(xué)碩士學(xué)位論文環(huán)狀結(jié)構(gòu)渦激振動(dòng)的數(shù)值模擬和風(fēng)洞試驗(yàn)研究姓名：苗艷釗申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：李明水201104西南交通大學(xué)碩士研究生學(xué)位論文第1I頁AbstractInthePasttwodecades，thewindeffectsontheconstruction，suchassuperhighrisebuildings，thelongspanspatialstructuresandlight—weightb

2、uildings，arelargelystrengthenedSowindloadistheoneofdominatedloadstothesebuildingsHowtocalculatewindeffectonthebuildingsisoneofthehotissuesintheboththetheoryandengineeringdomainsWiththedevelopmentofcomputationaltechnology

3、ComputationalWindEngineering(CWE)drawsmoreandmoreattentionandplaysamoreandmoreimportantroleinthewindengineeringcommunitybyitsuniquemeritsandpromisingprospectAtthesametime，moreandmorecomplexshapebuildingsarecomingforththe

4、buildingformsdescribedintherelevantcodesarenolongermatchthecomplexshapesofthebuildingsUndersuchcases，weusuallyderivethewindinducedpressuresdistributiononthesurfaceofthebuildingsbywindtunneltestwhetherathomeorabroadBasedu

5、ponCFDsoftware—FLUENTthisthesisfocusesonthenumericalsimulationofvortexinducedvibritionforthesighttowerofChangZhouEastmeridian120ThetheoriesandbasiccharactersofCFDwereintroducedfirstlyandtheprincipalandmethodsofhowtodecid

6、etheflowareagridboundaryconditions，turbulentmodelandcalculationparametersweresummarizedinthisthesisSecondlyforthisprojectdonewindtunneltestrelatedresearchThewindtunneltestturbulentfieldandauniformflowanalysisofthetwocase

7、s，researchonbuildingintheroleofwindloadandwindinducedvibrationcharacteristics，providethebasisforstructuredesignPneumaticelasticmodeltest’Smainpurposeistoobtainthewindmaycausethevortexinducedvibration，thechattering，aeroel

8、asticityetc，thusthewind—inducedvibrationsofwindresistancecomprehensiveevaluation，andcharacteristicsofthewindinducedvibrationgetstandardrequirementcoefficientAgain，thetowerappearonvortex—inducedvibrationphenomenonisnumeri

9、callysimulatedNumericalsimulationisdividedinto2dand3dmodelsimulationsRNGk￡separatelywithtwosearch—evadeantagonisticandLESturbulencemodeltocalculatethedatawithsottwareisthevortex—inducedvibrationfrequencyconversionofvalue

10、Finally，thedatausingthesoftwareisthevortexinducedvibrationfrequencyconversionofwindtunneltestandnumericalcomparesanalyzed，finallydetailedcalculationandexperimentalvaluedifferencebetweenthereasonThroughtheconcreteengineer