Stability characteristics of an externally adjustable fluid film bearing in the laminar and turbulent regimes
Stability characteristics of an externally adjustable fluid film bearing in the laminar and turbulent regimes
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DOI：
10.1016/j.triboint.2010.04.015
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发表时间：
2010-09
影响因子：
6.2
通讯作者：
B. S. Shenoy;R. Pai
中科院分区：
文献类型：
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作者：
B. S. Shenoy;R. Pai
本文研究了紊流对具有Shenoy和派所述设计结构的外调液膜轴承稳定性的影响。雷诺方程的时间相关形式的数值求解使用有限差分法。求解方案中采用了Ng和Pan的线性化湍流模型。动态系数的确定使用线性化的方法的轴承反应。通过各种调整进行的研究预测，与传统的流体膜轴承相比，具有负径向和负倾斜调整配置并在湍流状态下运行的轴承具有上级稳定性。
This paper deals with the effect of turbulence on stability characteristics of an externally adjustable fluid film bearing having a design configuration as illustrated by Shenoy and Pai. The time dependent form of Reynolds equation is solved numerically using the finite-difference method. Linearized turbulence model of Ng and Pan is incorporated in the solution scheme. Dynamic coefficients are determined using the method of linearization of bearing reactions. A study with various adjustments predicts that a bearing with negative radial and negative tilt adjustment configuration and operating in turbulent regime results in superior stability as compared to a conventional fluid film bearing.