引入摩擦的周向短弹簧汽车双质量飞轮分析模型及扭振固有特性

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1、学兔兔www.xuetutu.com第45卷第11期机械工程学报Vol.45No.112009年11月JOURNALOFMECHANICALENGINEERINGNov.2009DOI：10.3901/JME.2009.11.099引入摩擦的周向短弹簧汽车双质量飞轮分析模型*及扭振固有特性111222宋立权赵孝峰何泽海罗书明田宏艳樊照钟(1.重庆大学机械传动国家重点实验室重庆400044；2.重庆光大产业有限公司重庆401120)摘要：首次将摩擦引入周向短弹簧汽车双质量飞轮的转矩和转角关系的分析计算，获得了与测试结果基本

2、一致的转矩特性曲线的力学模型。由所建立的发动机—双质量飞轮式扭振减振器—传动系的动力学模型，分析各参数对系统固有频率的影响。将利用摩擦实现增大转矩和过载保护的理念引入双质量飞轮的设计，为高性能双质量飞轮的产品的开发提供设计思路，揭示引入摩擦的双质量飞轮减振器优良减振的内在本质。得到考虑摩擦特性的分析模型更具真实性和更有利于提高产品的减振性能的结论，以及使共振转速完全被隔离在发动机的工作转速之外，可通过调整双质量飞轮的扭转刚度k1和初级飞轮转动惯量J1及次级飞轮转动惯量J2而实现，增加J1而减小J2对避免共振的产生是有利的

3、。关键词：双质量飞轮扭振减振器机械振动学机械系统动力学中图分类号：TK413.3+1TG457.25TH133.7AnalysisModelandInherentCharacteristicsofTorsionalVibrationoftheDualMassFlywheel-circumferentialShortSpringIntroducedFriction1112SONGLiquanZHAOXiaofengHEZehaiLUOShuming22TIANHongyanFANZhaozhong(1.TheStateKe

4、yLaboratoryofMechanicalTransmission,ChongqingUniversity,Chongqing400044;2.ChongqingGuangdaIndustryCo.Ltd.,Chongqing401120)Abstract：Frictionisforthefirsttimeintroducedintotheanalysisandcalculationoftherelationbetweentorqueandtorsionalangelofthedual-massflywheel-ci

5、rcumferentialshortspring,andthemechanicalmodeloftorquecharacteristiccurvebasicallyagreeingwiththetestresultisobtained.Basedontheestablisheddynamicmodeloftheengine-dualmassflywheeltorsionaldamper-transmissionsystem,theinfluencesofvariousparametersonthesysteminhere

6、ntfrequencyisanalyzed.Theconceptofusingfrictiontoincreasetorqueandoverloadprotectionisintroducedintothedesignofdualmassflywheel,therebyprovidingdesignideasforthedevelopmentofhigh-performancedual-massflywheelproductsandrevealingthegoodintrinsicnatureofthevibration

7、damperofdual-massflywheelwithfrictionintroduced.Itisconcludedthattheanalysismodelismoreauthenticandhelpfultoimprovingthedampingperformanceofproductbytakingintoaccountthecharacteristicoffriction,alsotheresonancespeedcanbecompletelyisolatedbeyondtheworkingspeedofen

8、ginebyadjustingthestiffnessk1ofthedual-massflywheel,themomentofinertiaJ1oftheprimaryflywheelandthemomentofinertiaJ2ofthesecondaryflywheelinertia.Increasingthep