以下为句子列表：
英文: Abstract: This paper derives thecalculating formulas to the contact strength and oil-film thickness of the involute spur gear according to hydrodynamic lubrication principle.Through check with test,shows that they may rully replace now available Hertz for
中文: 文摘:根据流体动力润滑原理，推导出了渐开线直齿圆柱齿轮接触强度及油膜厚度的计算公式，通过实验验证，说明它们可以完全分别代替现有的赫芝公式及通森公式。
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英文: Based on hydrodynamic lubrication theory, a rectangular tire tread model for simulating the viscous hydroplaning of tire is set up, taking into consideration the effects of hydrodynamic action, squeeze action and road roughness with numerical solutions ob
中文: 摘要根据流体动力润滑理论，将轮胎猫性滑水问题模拟为胎面单元与路面之间的动压、挤压膜问题，同时考虑了路面粗糙度的影响，建立了轮胎胎面单元黏性滑水问题的数学模型，并进行数值求解。
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英文: Non-steady transient thermal elastohydrodynamic lubrication analysis model based on surface roughness in high-speed cylindrical roller bearing has been established, and effects of roughness amplitude, wavelength, and texture in contact surface of raceway
中文: 摘要建立了基于表面粗糙的高速圆柱滚子轴承非稳态时变热弹流分析模型，分析了抽承滚道与滚动体接触表面粗糙度幅值大小及其方向对轴承弹流性能的影响。
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英文: The paper lists out the lubrication equation, oil film rigidity calculation expression and damp coefficient calculation expression, and gives a calculation example of dynamic lubrication journal bearing.
中文: 文中给出了轴承的润滑方程、油膜扰动刚度和阻尼计算表达式，并进行了轴承的动态润滑特性参数计算。
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