振动与冲击第42卷第14期JOURNALOFVIBRATIONANDSHOCKVol.42No.142023考虑DCT车辆起步过程离合器接合稳定性的双质量飞轮参数优化郭政'，秦大同'，李盛炜’，刘永刚（1.重庆大学机械传动国家重点实验室，重庆400044;2.北京华航海鹰新技术开发有限责任公司，北京100013）摘要：在车辆起步过程中，发动机输出转矩波动会导致离合器接合不稳定，从而影响整车动力传动系统的平顺性。双质量飞轮（dualmassflywheel，DMF）可减小发动机转矩波动对离合器及整车动力传动系统的影响。针对起步过程离合器接合不稳定影响整车平顺性的问题，以双离合器自动变速器（dualclutchautomatictransmission，DCT）车辆为研究对象,研究了DMF的刚度、阻尼和初级与次级飞轮惯量比对DCT车辆起步过程离合器接合稳定性的影响,并建立了以离合器黏滑比和整车冲击度为目标函数的多目标优化模型，利用遗传算法对模型进行优化，得到了使离合器接合稳定性提高且整车冲击度明显降低的DMF最优参数组合。关键词：双质量飞轮（DMF）；遗传算法；离合器接合稳定性；黏滑比；双离合器自动变速器（DCT）；起步过程中图分类号：TH212;TH213.3文献标志码：AD0I:10.13465/j.cnki.jvs.2023.14.019ParameteroptimizationofadualmassflywheelconsideringclutchengagementstabilityduringthestartingofaDCTvehicleGUOZheng’,QINDatong’,LIShengwei?,LIUYonggang'(1.TheStateKeyLaboratoryofMechanicalTransmission,ChongqingUniversity,Chongqing400044,China;2.BeijingHuahangHaiyingNewTechnologyDevelopmentCo.,Ltd.,Beijing100013,China)Abstract:Inthestartingprocess,thefluctuationofengineoutputtorqueleadstounstableclutchengagementandaffectsthetransmissionsmoothnessofthevehiclepowertrainandtheridecomfortofthevehicle.Thedualmassflywheel(DMF)canreducetheinfluenceofenginetorquefluctuationontheclutchandvehiclepowertrain.Aimingattheproblemthatclutchengagementinstabilityaffectsvehicleridecomfortduringthestartingprocess,theinfluencesofDMFstiffness,dampingandtheinertiaratioofprimaryandsecondarypartsoftheDMFontheclutchengagementstabilityofadualclutchautomatictransmission(DCT)vehicleduringthestartingprocesswasstudied.Amulti-objectiveoptimizationmodelwiththeclutchstickslipratioandvehiclejerkastheobjectivefunctionswasestablished.Themodelwaso...
