第1期研究报告*中国博士后科学基金资助项目(2021M702477)地铁车辆转向架主动径向系统作动器的布置方式*罗汇智田师峤肖春昱(同济大学铁道与城市轨道交通研究院，201804，上海∥第一作者，硕士研究生)摘要针对一系锥形簧非三轨受流的B型车辆转向架，提出一种即插式主动径向同侧驱动的技术升级方案，以改善其曲线通过性能。该方案中的主动径向作动器直接连接同侧前后轴箱，不与构架发生关联，具有结构简单、对原有转向架结构改动小、成本低的优势。建立动力学模型，对主动径向曲线通过一系簧纵向时变刚度对轮对径向姿态影响、蛇行稳定性等方面进行了动力学仿真分析。分析结果表明:同侧驱动技术方案能有效改善曲线通过性能，纵向刚度时变不影响同侧驱动径向姿态，蛇行临界速度满足最高运行速度要求。关键词地铁车辆;主动径向转向架;作动器中图分类号U270．331+．7…U270．1+1DOI:10．16037/j．1007－869x．2023．01．033LayoutofMetroVehicleBogieActiveSteeringSys-temActuatorLUOHuizhi，TIANShiqiao，XIAOChunyuAbstractToimprovemetrovehiclecurvepassingperformance，targetingB-typevehiclebogiewithconicalprimaryspringswithoutthird-railcurrentcollection，atechnicalupgradeschemeofplug-inactivesteeringsamesidedriveispro-posed．Theactivesteeringactuatorsinthisschemearedirectlyconnectedtothefrontandrearaxleboxesonthesameside，whilenotassociatedwiththebogieframe．Comparedtoconven-tionalscheme，thisschemehasadvantagesofsimplestructureandaminorandcheapermodificationtotheoriginalbogie．Adynamicmodelisestablished，andadynamicssimulationanalysisisemphaticallycarriedoutfortheaspectsincludingtheinfluenceofactivesteeringcurveonwheelsetsteeringattitudethroughprimaryspringlongitudinaltime-varyingstiffness，andthehuntingstability．Analysisresultsshowthatthesamesidedrivetechnicalschemecaneffectivelyimprovethecurvepassingperformance．Longitudinaltime-varyingstiffnessdoesn'taffectthesamesidedrivesteeringattitude，andthecriticalhuntingspeedishigherthanthemaximumrunningspeedrequirement．Keywordsmetrovehicle;activesteeringbogie;actuatorAuthor'saddressInstituteofＲailTransit，TongjiUniversity，201804，Shanghai，China传统转向架直线稳定性和曲线通过性能一直是一对矛盾［1...
