基于变速器振动特性的齿轮异常磨损分析
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摘要
变速器由于各种激振产生复杂的振动,不仅关系到乘坐舒适性,对传动系统各零件寿命和可靠性都有重要的影响。在设计开发阶段考虑变速器的激振来源以及内部零件与外部换挡操纵的模态,可有效改善变速器相关振动问题。通过某机械式变速器整车耐久试验中挡位齿轮结合齿早期异常磨损引起的换挡手柄抖动分析,从振动特性为出发点,推论出主减齿轮为激振源,一轴总成、平衡块等产生叠加共振。提出改善对策并通过了试验验证。
Because of the complex vibration caused by various excitations,the transmission is not only related to driving comfort,but also has an important influence on the life and reliability of the transmission system. Considering the excitation source of the transmission and the mode of internal parts and external shift control can effectively improve the vibration problem of the transmission in the early design and development stage. Through a case analysis of mechanical transmission gear early abnormal wear and tear caused by the shifting handle jitter,it is deduced that the shaft assembly and balance block are resonant due to the excitation of the main reduction gear based on the vibration characteristics. The improvement strategy are proposed and verified by experiments.
Because of the complex vibration caused by various excitations,the transmission is not only related to driving comfort,but also has an important influence on the life and reliability of the transmission system. Considering the excitation source of the transmission and the mode of internal parts and external shift control can effectively improve the vibration problem of the transmission in the early design and development stage. Through a case analysis of mechanical transmission gear early abnormal wear and tear caused by the shifting handle jitter,it is deduced that the shaft assembly and balance block are resonant due to the excitation of the main reduction gear based on the vibration characteristics. The improvement strategy are proposed and verified by experiments.
引文
[1]王明燕.汽车变速器的传动与结构振动分析[D].南京:南京航空航天大学,2008:1-4.
[2]张纪平,吴文轩,马维金,等.汽车变速箱故有振动特性分析研究[J].机械传动,2017,41(3):134-138.
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[4]田雄,李宏成,吕先锋,等.基于传递路径试验分析的变速器敲击噪声优化[J].振动工程学报,2010(6):642-648.
[5]郭磊,郝志勇,蔡军,等.汽车变速箱齿轮传动系动力学振动特性的研究[J].振动与冲击,2010(1):103-107.
[6]李惠彬,郑兆昌.带有侧隙的齿轮故障振动[J].清华大学学报(自然科学版),2001(6):104-107.
[7]CUI Yahui,LIU Zhansheng,YE Jianhuai,CHEN Feng.Theoretical and experimental study on non-linear vibration characteristic of gear transmission system[J].Journal of Harbin Institute of Technology,2010,17(1):105-111.
[2]张纪平,吴文轩,马维金,等.汽车变速箱故有振动特性分析研究[J].机械传动,2017,41(3):134-138.
[3]王世宇,宋轶民,张策,等.行星齿轮传动的共振失效概率[J].天津大学学报,2005(12):1122-1128.
[4]田雄,李宏成,吕先锋,等.基于传递路径试验分析的变速器敲击噪声优化[J].振动工程学报,2010(6):642-648.
[5]郭磊,郝志勇,蔡军,等.汽车变速箱齿轮传动系动力学振动特性的研究[J].振动与冲击,2010(1):103-107.
[6]李惠彬,郑兆昌.带有侧隙的齿轮故障振动[J].清华大学学报(自然科学版),2001(6):104-107.
[7]CUI Yahui,LIU Zhansheng,YE Jianhuai,CHEN Feng.Theoretical and experimental study on non-linear vibration characteristic of gear transmission system[J].Journal of Harbin Institute of Technology,2010,17(1):105-111.