Helical-Grooved Journal Bearing Operated in Turbulent Regime
Helical-Grooved Journal Bearing Operated in Turbulent Regime
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DOI：
10.1115/1.3451407
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发表时间：
1970-04
期刊：
影响因子：
--
通讯作者：
C. Chow;J. Vohr
中科院分区：
文献类型：
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作者：
C. Chow;J. Vohr
对在湍流状态下运行的螺旋轴承进行了分析，不可压缩液膜中的惯性可以忽略不计[10, 11]。 该分析基于 Ng 和 Pan [4] 开发的线性润滑理论。本文给出了该分析的概要，特别是各种螺旋槽的轴承性能数据。提供的数据包括稳态下的轴承性能、刚度和阻尼系数以及层流和湍流状态下轴颈的临界质量。为了便于设计，计算这些数据以获得螺旋槽轴承的最佳几何形状，以在各种雷诺数下提供最大径向刚度。此外，外部加压供应润滑剂的影响也显示在性能曲线中。
An analysis for helical bearings operated in turbulent regime, with negligible inertia in an incompressible fluid film, was performed [10, 11]. The analysis is based on the linearised lubrication theory developed by Ng and Pan [4]. The outlines for this analysis and, in particular, the bearing performance data for various helical groovings are given in this paper. The data presented include the bearing performance at the steady state, the stiffness and damping coefficients, and the critical mass of journal in both laminar and turbulent regimes. To facilitate designs, these data are computed for optimal geometries of helical grooved bearings to provide maximum radial stiffness at various Reynolds numbers. In addition, the effect of external pressurized supply of lubricant are shown in the performance curves.