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国外文献 > 1.轴承 > 1. 基础理论与机制 > 动力学与稳定性

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标 题： A comparison study on characteristics of five types of hydrodynamic oil bearings for application to hard disk drive spindles
五种流体动力油润滑轴承在硬盘驱动器主轴应用中的特性比较研究
作 者： Kyosuke Ono
Jiasheng Zhu
关键词： Hydrodynamic bearing  [流体动力轴承]
Spindle  [ 主轴]
Design  [ 设计]
Information processing equipment  [ 信息处理设备]
Numerical analysis  [ 数值分析]
Bearing stiffness  [ 轴承刚度]
Stiffness to torque ratio  [ 刚度与扭矩比]
Stability  [ 稳定性]
出版年： 1998
期刊名： 日本机械学会论文集，C辑
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年卷期： 1998, vol.64, no.622
摘 要： In this paper, we numerically analyzed the static and dynamic characteristics of step, taper, taper-flat and herringbone bearings and compared their optimal performances in terms of application conditions for hard disk spindle. The first three types of bearings are designed to have thick grooves which can separate each bearing part into independent one so as to generate only positive pressure. The effects of separating groove depth on radial and tangential stiffnesses are made clear. The optimal values of design parameters of each type of bearing in terms of both maximum radial stiffness krr and maximum ratio of krr to friction torque T and bearing characteristics in both cases are calculated. The stability comparison of these five types of bearings were also carried out. It is found that herringbone bearing is superior to the other three types of bearings in terms of the maximum krr. However, the taper-flat bearing is superior in terms of the maximum krr/T and whirl stability

本文对阶梯式、锥形、锥平和鱼骨状轴承的静态与动态特性进行了数值分析，并比较了它们在硬盘主轴应用条件下的最优性能。前三种轴承设计有较深的沟槽，可将每个轴承部件分离为独立部分，从而仅产生正向压力。研究明确了沟槽深度对径向刚度和切向刚度的影响。针对每种轴承类型，分别计算了最大径向刚度 krr、krr 与摩擦扭矩 T 的最大比值，以及轴承特性的最优设计参数值。同时，还对这五种轴承的稳定性进行了对比。结果表明，鱼骨状轴承在最大 krr 值方面优于其他三种轴承； 而锥平轴承在最大 krr/T 值和旋涡稳定性方面则表现更优。
中文内容为网络AI翻译，专业术语未必准确，仅供参考。

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