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高速铁路桥梁-列车系统的横风气动特性研究综述（英文）.docx

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高速铁路桥梁-列车系统的横风气动特性研究综述（英文） Title:AerodynamicCharacteristicsofHigh-SpeedRailwayBridges-TrainsSystemunderCrosswind:AReview Abstract: Withtherapiddevelopmentofhigh-speedrailwaynetworksworldwide,ithasbecomeimperativetounderstandtheaerodynamiccharacteristicsofbridgesandtrainsinordertoensurethesafetyandstabilityofhigh-speedrailoperations.Oneofthecriticalenvironmentalfactorsaffectingtheperformanceoftrainsonbridgesiscrosswind.Thispaperaimstoprovideacomprehensivereviewoftheresearchconductedontheaerodynamiccharacteristicsofhigh-speedrailwaybridges-trainssystemundercrosswind.Thereviewedstudiesencompassawiderangeoftopics,includingwind-inducedvibration,airflowpatterns,bridge-traininteraction,andwind-resistantdesign.Furthermore,thepaperhighlightsthemethodologiesemployedinthereviewedstudies,identifieskeyfindings,anddiscussespotentialfutureresearchdirections. 1.Introduction 1.1Background 1.2Objectives 1.3Methodology 2.Wind-InducedVibrationofHigh-SpeedRailwayBridges 2.1Crosswind-inducedVibrationMechanism 2.2VibrationTestingandMonitoring 2.3NumericalSimulationandAnalysis 2.4MitigationMeasures 3.AirflowPatternsaroundBridgesandTrains 3.1WindFlowCharacteristics 3.2WindTunnelTesting 3.3ComputationalFluidDynamics(CFD)Modeling 3.4FlowControlTechniques 4.Bridge-TrainInteractionunderCrosswind 4.1DynamicInteractionMechanism 4.2BridgeAerodynamicsandTrainAerodynamics 4.3LoadEffectsontheBridgeStructure 4.4RideComfortandPassengerSafety 5.Wind-ResistantDesignofHigh-SpeedRailwayBridgesandTrains 5.1BridgeDesignConsiderations 5.2TrainDesignConsiderations 5.3WindLoadAssessmentStandards 5.4CaseStudiesofWind-ResistantDesigns 6.KeyFindingsandChallenges 6.1SummaryofKeyFindings 6.2ExistingChallengesandLimitations 7.FutureResearchDirections 7.1IntegratedAnalysisofBridge-Train-WindSystem 7.2ActiveControlofCrosswindEffects 7.3Multi-scaleandMulti-physicsModeling 7.4DevelopmentofWind-ResistantDesignGuidelines 8.Conclusion Theincreasingdemandforhigh-speedrailwaytransportationnecessitatesathoroughunderstandingoft