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An improved stiffness model for line contact elastohydrodynamic lubrication and its application in gear pairs

机译：一种改进的线路接触弹性流体动力学润滑的刚度模型及其在齿轮对中的应用

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Purpose The purpose of this paper is to propose an simple and efficient stiffness model for line contact under elastohydrodynamic lubrication (EHL) and to investigate the gear meshing stiffness by the proposed model. Design/methodology/approach The method combines the surface contact stiffness and film stiffness as EHL contact stiffness. The EHL contact stiffness can be calculated by the external load and displacement of the load action point. The displacement is the sum of deformation of the film and contact surface and is equal to the distance of the mutual approach of two contact bodies. Findings The conclusion is drawn that the contact stiffness calculated by the proposed model is smaller than that by the minimum film model and larger than that by the mean film model. It is also concluded that the gear meshing stiffness under EHL is slightly smaller than that under dry contact. Originality/value The EHL contact stiffness can be obtained by the increment of external load and mutual approach directly. The calculation of oil film stiffness and surface contact stiffness separately is avoided. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-11-2019-0465
机译：目的本文的目的是提出一种简单且有效的刚度模型，用于在弹性流动润滑（EHL）下的线路接触，并通过所提出的模型来研究齿轮啮合刚度。设计/方法/方法该方法将表面接触刚度和薄膜刚度与EHL接触刚度相结合。 EHL接触刚度可以通过外部负载和负载动作点的位移来计算。位移是膜和接触表面的变形之和，等于两个接触体的互补距离的距离。发现结论是由所提出的模型计算的接触刚度小于最小薄膜模型的接触刚度，并且比平均胶片模型大。还得出结论，EHL下的齿轮啮合刚度略小于干燥接触下的齿状刚度。原创性/值可以通过直接的外部负载和相互方法的增量获得EHL接触刚度。避免了油膜刚度和表面接触刚度的计算。 Peer查看本文的对等审查历史记录可在：https://publons.com/publon/10.1108/ Ilt-11-2019-0465

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