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首页> 外文会议>International Symposium on Stability Control of Rotating Machinery(ISCORMA-4); 20070827-31; Calgary(CA) >STABILITY OF TILTING 5-PAD JOURNAL BEARING
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STABILITY OF TILTING 5-PAD JOURNAL BEARING

机译：倾斜5垫日记本轴承的稳定性

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摘要

In the journal bearing systems of modern high speed rotating machinery the radial tilting-pad journal bearings are widely applied. For such bearings the determination of both static and dynamic characteristics of system rotor-bearings, critical speeds, response of system on the dynamic load as well as stability of rotor, are very essential. The paper presents the results of theoretical investigation of the stability of tilting 5-pad journal bearing that operates at laminar oil film. The Reynolds', energy, viscosity and geometry equations determine the oil film pressure, temperature distributions, oil film resultant force that are the starting point for the dynamic characteristics and stability of bearing. These equations were solved simultaneously on the assumption of adiabatic laminar oil flow in the bearing gap. Perturbation method was applied for the calculation of stiffness and damping coefficients of oil film. Stability limit was determined on the basis of system damping.
机译：在现代高速旋转机械的轴颈轴承系统中，径向可倾瓦轴颈轴承得到了广泛的应用。对于此类轴承，确定系统转子轴承的静态和动态特性，临界转速，系统对动载荷的响应以及转子的稳定性非常重要。本文介绍了在层状油膜下工作的可倾斜5瓦轴颈轴承稳定性的理论研究结果。雷诺的能量，粘度和几何方程式决定了油膜压力，温度分布，油膜合力，这些是轴承动态特性和稳定性的起点。这些方程式是在轴承间隙中绝热层流流动的假设下同时求解的。采用摄动法计算了油膜的刚度和阻尼系数。稳定性极限是根据系统阻尼确定的。

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