基于CAE的橋梁防撞研究.pdf

1、河海大學碩士學位論文基于CAE的橋梁防撞研究姓名：王政平申請學位級別：碩士專業(yè)：港口、海岸及近海工程指導教師：吳中20080301AbstractInrecentdecades，bridgeaccidentsoccuredfrequently，whichthreateneconomicdeVelopmentandlifeandpropertysafetyTheship—bridgec011isionaccidentcausedbyshi

2、prunnigoutofcontroloccupiesconsiderableproportionThetrendoflargeshipdeVelopmenthasalsomadetheresearchofship—bridgec01lisionreachanunprecedentedheightBridgeisa1inkoflandtransportaswellasaobstaclebuildinginsea—route，Inrece

3、ntyearsmanyship—bridgec01lisionaccidentshaveattractedmoreandmoreattentionstobridgesafetyAtpresent，agreatdealofresearchabouttheship—bridgecollisionintheworldhasbeendone，whichmainlyfocusontheprobabilityofship—bridgecollisi

4、on，c011isionkineticenergy，c011isionforceandcorrespondingenergyconversionandsoonoweyer，thesestudiesaremainlybasedonasingleobjectorthedevelopedmodelistoosimple，sotheaccuracyandreliabilityofcalculationisdifficulttobeguarant

5、eedInfact，thebridgeandtheshiparetwoabsolutesystems，theyc011ideeachotherandthed鋤ageandcollapseeausedbythec011isionisaprocessincludingaseriesofcomplexinteractionofnonlineardynamicresponseThestudyabouttheinteractionbetweent

6、hetwocompletesystems，inparticularthedigitalsimulationstudyabouttheantic印acityofthebridgeonasafeconditionhasnotyetbeenresearchedEhsedonthetrafficaccidents，thepaperdevelopsacompletemodeloftheship—bridgesystemusingexistinge

7、ngineeringtheoryandCAEtechnologyandexplicitfiniteelementmethodtosimulateboat—bridgec011isions，damageandcollapseandstudytheresponsetothepiers，foundation，thebridgestructureandthewholesystemTheantiabilityisgivenbysimulating

8、differentcollisionofship—bridgeandcomparingthem：theantisetsshouldbesettedtoimprovetheantiabilityofbridgeandthecorrespondingantiabilityhasbeenevaluatedThesemeasurementscouldimprovesafetyandreliabilityofbridgeatareasonable

9、costandprovidereferenceandwarrantforeconomicreasonableanti—collisiondesign，defence，reinforcementandtrafficmanagementofbridgeDigitalsimulationresultsareingoodaccordwiththerealcondition，whichshowsthatthesimulatedresultscan