OpenJournalofTransportationTechnologies交通技术,2023,12(4),315-321PublishedOnlineJuly2023inHans.https://www.hanspub.org/journal/ojtthttps://doi.org/10.12677/ojtt.2023.124035文章引用:朱朝全,严皓,杜新宇.CRH3A型动车组异常振动分析及解决方法研究[J].交通技术,2023,12(4):315-321.DOI:10.12677/ojtt.2023.124035CRH3A型动车组异常振动分析及解决方法研究朱朝全1,严皓2,杜新宇21中国铁路成都局集团有限公司,四川成都2中国铁路成都局集团有限公司成都动车段,四川成都收稿日期:2023年3月30日;录用日期:2023年7月11日;发布日期:2023年7月20日摘要针对CRH3A型动车组在运行过程中在特定地点出现异常抖动的情况,调查了异常抖动车组的车辆状态,分析了车辆与实际钢轨匹配的等效锥度和轮轨接触关系。通过对CRH3A型动车组等效锥度进行分析,结果表明:CRH3A型动车组镟修周期内踏面凹型磨耗严重,在与实际磨耗轨匹配时,接触点存在跳跃情况,以至于轮轨实际匹配等效锥度过大,轮轨匹配关系不佳,通过合理制定钢轨打磨方案,及时安排车组镟修,可有效改善轮轨匹配关系。关键词动车组,镟修周期,等效锥度,稳定性StudyonAbnormalVibrationandSolutionforCRH3AEMUChaoquanZhu1,HaoYan2,XingyuDu21ChinaRailwayChengduGroupCo.,Ltd.,ChengduSichuan2ChengduEMUsDepot,ChinaRailwayChengduGroupCo.,Ltd.,ChengduSichuanReceived:Mar.30th,2023;accepted:Jul.11th,2023;published:Jul.20th,2023AbstractTheabnormalvibrationofCRH3AEMUatsomespecificlocationsisinvestigated,andtheequivalentconicityofwheelsetandwheel-railcontactrelationshipfortheactualrailandwheelwereanalyzed.ThroughtheanalysisoftheequivalentconicityofCRH3A,theresultsshowthatthewheelwearofCRH3Aisseriousduringtheturningrepaircycle.Thewheelmatchingwiththeactualrail,thereisajumpatthecontactpoint,sothattheequivalentconicityoftheactualwheel-railmatchingistoolarge,andthewheel-railmatchingrelationshipunreasonable.Throughthereasonableformulation朱朝全等DOI:10.12677/ojtt.2023.124035316交通技术oftherailgrindingandthetimelyarrangementofthewheelsetsrepair,thewheel-railmatchingrelationshipcanbeeffectivelyimproved.KeywordsEMU,TurningRepairCycle,EquivalentConicity,StabilityCopyright©2023byauthor(s)andHansPublishersInc.Th...