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A numerical study on the negligibility of cross-film pressure variation in infinitely wide plane slider bearing, Rayleigh step bearing and micro-grooved parallel slider bearing

机译:无限宽平面滑块轴承,瑞利步轴承和微沟道平行滑块轴承横膜压力变化忽略局部的数值研究

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摘要

In lubrication theory, the cross-film pressure variation is assumed negligible. It is questionable whether this is generally true. To validate this assumption, a finite-element software was used to solve the Navier-Stokes equations for plane slider bearings, Rayleigh step bearings and micro-grooved parallel slider bearings. Results showed that the cross-film pressure variation is negligible for plane slider bearings and Rayleigh step bearings. A parametric investigation for micro-grooved parallel slider bearings showed that there is a limit on the Reynolds number below which the difference between the local and runner pressures exceeding 5% of bearing pressure occurs in a very small region. This study found the correlations for the determination of this limiting Reynolds number. (C) 2018 Elsevier Ltd. All rights reserved.
机译:在润滑理论中,假设横膜压力变化可以忽略不计。 这是否通常是真实的。 为了验证此假设,使用有限元软件来解决平面滑动轴承的Navier-Stokes方程,瑞利步轴承和微沟道平行滑动轴承。 结果表明,平面滑动轴承和瑞利步轴承的横膜压力变化可忽略不计。 微沟道平行滑动轴承的参数研究表明,下面的雷诺数有一个限制,局部和转子压力之间的差异超过5%的轴承压力发生在非常小的区域中。 该研究发现了确定该限制雷诺数的相关性。 (c)2018年elestvier有限公司保留所有权利。

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