Experimental Study on the Stabilization of Small-Bore Journal Bearings by Controlling Starved Lubrication and Bearing Orientation Angle
Experimental Study on the Stabilization of Small-Bore Journal Bearings by Controlling Starved Lubrication and Bearing Orientation Angle
复制标题
通过控制润滑不足和轴承定向角稳定小孔径轴颈轴承的实验研究
DOI：
10.1115/1.2991128
复制
发表时间：
2009
影响因子：
2.5
通讯作者：
M. Ochiai
中科院分区：
文献类型：
--
作者：
H. Hashimoto;M. Ochiai
轴颈轴承广泛用于支持高速旋转机械，如涡轮机，压缩机和HDD主轴，因为它们具有高承载能力，稳定性和耐用性。近年来，旋转机械的工程发展趋势是向更高的转速和更小的尺寸发展，因此提高小口径滑动轴承的稳定性是非常重要的。可倾垫轴颈轴承由于具有稳定的优点，一般用于高速旋转机械。然而，由于小型旋转机械的制造成本高，结构复杂，采用小型旋转机械存在一些问题。因此，与倾斜垫轴承相比，有必要提高更简单轴承的稳定性，以便用于小型旋转机械。本文介绍了一种基于饥渴润滑与取向角变化相结合的小口径滑动轴承稳定化方法。结果表明，两种机构相结合的混合润滑能显著提高小口径滑动轴承的稳定性。
Journal bearings are widely used for supporting high-speed rotating machinery, such as turbine, compressor, and HDD spindle, because of their high load carrying capacity, stability, and durability. Recently, the engineering trend is oriented to higher speed and smaller sizes of rotating machinery, and then it is important to enhance stabilities for the small-bore journal bearings. Tilting pad journal bearing is generally used for high-speed rotating machineries because of their advantages of stabilization. However, there are some problems using compact size rotating machineries for their high manufacturing cost and complicated structure. Therefore, it is necessary to enhance the stability of more simple bearings compared with tilting pad bearing in order to use for small-size rotating machinery. This paper describes the stabilization method of the small-bore journal bearing based on the combination mechanism with starved lubrication and orientation angle change. It is found that the stabilization of small-bore journal bearings is improved drastically by hybrid lubrication combining these two kinds of mechanism.