1.青岛理工大学 机械与汽车工程学院, 山东 青岛 266520
菅光霄(1995— ),男,山东德州人,硕士,主要从事齿轮的弹流润滑研究。
王优强(1970— ),男,山东沂水人,教授,博导,主要从事齿轮及轴承的弹流润滑研究。
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菅光霄,王优强,罗恒等.齿轮动力学与弹性流体动力润滑耦合研究[J].机械传动,2020,44(02):22-27.
Jian Guangxiao Wang Youqiang Luo Heng Li Yunkai.Study on the Coupling of Gear Dynamics and Elastohydrodynamic Lubrication[J].Journal of Mechanical Transmission,2020,44(02):22-27.
菅光霄,王优强,罗恒等.齿轮动力学与弹性流体动力润滑耦合研究[J].机械传动,2020,44(02):22-27. DOI: 10.16578/j.issn.1004.2539.2020.02.004.
Jian Guangxiao Wang Youqiang Luo Heng Li Yunkai.Study on the Coupling of Gear Dynamics and Elastohydrodynamic Lubrication[J].Journal of Mechanical Transmission,2020,44(02):22-27. DOI: 10.16578/j.issn.1004.2539.2020.02.004.
为探究齿轮的动力学特性与弹流润滑耦合效应,综合考虑齿轮啮合刚度的时变效应和表面粗糙度对齿轮动力学行为的影响,基于动力学理论,建立了6自由度摩擦动力学模型。采用解耦方法求解该模型,将求解获得的轮齿动态啮合力和表面波动速度用于弹流润滑分析中。通过实例研究了动、静两种载荷模型下齿轮的弹流润滑特性。研究表明,与平稳载荷相比,基于动载荷模型的齿轮弹流润滑研究更能准确反映齿轮的瞬态润滑特性,在啮合刚度的激励下,润滑时油膜压力和油膜厚度均表现出一定的振荡效应。啮入点、单齿啮入点以及单齿啮出点存在较大的冲击,是齿轮弹流润滑的危险点。
To explore the coupling effect of gear dynamics characteristics and elastohydrodynamic lubrication, considering the influence of surface roughness and the time-varying meshing stiffness on gear dynamics behavior, the six-degree-freedom friction dynamics model is established based on the dynamics theory. The decoupling method is adopted to solve the model to get the dynamic meshing force and the gear teeth surface wave velocity which are used for elastohydrodynamic lubrication analysis. And the elastohydrodynamic lubrication characteristics of gears under dynamic and static load models are studied by an example. The results show that, compared with the stationary load, the elastohydrodynamic lubrication research based on dynamic load model can more accurately reflect the transient lubrication characteristics of gear. Under the incentive of time-varying stiffness, the oil film pressure and oil film thickness during lubrication show certain oscillation effect. There is greater impact on the entry point, single-tooth entry point and single-tooth exit point which are the dangerous points of elastohydrodynamic lubrication.
渐开线直齿轮 摩擦动力学模型 弹流润滑 润滑特性
Involute spur gearTribo-dynamics modelElastohydrodynamic lubricationLubrication Characteristic
王优强,畅通.啮入冲击对直齿轮弹流润滑的影响 [J].计算力学学报,2010,27(3):527-532.
WANG Youqiang,CHANG Tong.The influence of approach impact load on EHL of involute spur geras[J].Chinese Journal of Computational Mechanics,2010,27(3):527-532.
时高伟,王优强.变卷吸速度过程对直齿圆柱齿轮热混合润滑的影响[J].润滑与密封,2011,36(1):43-48.
SHI Gaowei,WANG Youqiang.Influence of variable coiling and suction speed process on hot mixed lubrication of spur gear[J].Lubrication Engineering,2011,36(1):43-48.
王文中,操鸿,胡纪滨.渐开线斜齿轮非稳态弹流润滑数值模拟研究[J].摩擦学学报,2011,31(6):604-609.
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王优强,卞荣.连续波状粗糙度对直齿轮热弹流润滑的影响[J].机械工程学报,2009,45(8):112-118.
WANG Youqiang,BIAN Rong.Effect of continuous wave roughness on thermo-hydro-lubrication of spur gear[J].Journal of Mechanical Engineering,2009,45(8):112-118.
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