A Study of Non-Recessed Hybrid Flexible Journal Bearing With Different Restrictors
A Study of Non-Recessed Hybrid Flexible Journal Bearing With Different Restrictors
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DOI：
10.1080/10402000108982464
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发表时间：
2001-01
影响因子：
2.1
通讯作者：
Satish C. Sharma;S. Jain;N. M. Mohan Reddy
中科院分区：
文献类型：
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作者：
Satish C. Sharma;S. Jain;N. M. Mohan Reddy
对于在重载荷下运行的轴承，由液膜压力引起的轴承表面弹性变形不再可以忽略，因为它与液膜厚度的数量级相当。在目前的工作中，通过在分析中考虑轴瓦的灵活性，进行了一项理论研究，描述了使用不同流量控制装置的非凹槽混合轴颈轴承的性能比较。采用有限元法求解了相关控制方程。针对不同轴承柔性参数 ((?d)) 值，研究了两种独立配置的非凹槽混合轴颈轴承的性能比较。对于由毛细管、节流孔和恒流阀限制器补偿的孔进入型轴颈轴承以及槽进入型轴颈轴承，对于相同的一组操作和几何参数值，给出了结果。计算结果表明，为了提高非凹进式轴颈轴承的性能，正确选择轴承柔度参数 ((?d)) 以及流量控制装置的类型（即毛细管、节流孔、恒流阀、槽等）和轴承配置类型（对称/非对称）至关重要。 2000 年 10 月 1-4 日在华盛顿州西雅图举行的 ASME/STLE 摩擦学会议上作为摩擦学家和润滑工程师学会论文发表
For bearings operating under heavy loads, the elastic deformation of bearing surface induced by fluid film pressures can no longer be neglected as it is comparable to the order of magnitude of fluid film thickness. In the present work a theoretical study describing comparative performance of non-recessed hybrid journal bearing using different flow control devices has been carried out by considering bearing shell flexibility into the analysis. The relevant governing equations have been solved using finite element method. The comparative performance of non-recessed hybrid journal bearings of two separate configurations have been studied for various values of bearing flexibility parameter ((Ȼd)). The results have been presented for hole-entry type journal bearings compensated by capillary, orifice and constant flow valve restrictors and for a slot-entry type journal bearing, for the same set of values of operating and geometric parameters. The computed results indicates that in order to get an improved performance of non-recessed journal bearing, a proper selection of bearing flexibility parameter ((Ȼd)) along with type of flow control device (i.e., capillary, orifice, constant flow valve, slot etc.) and type of bearing configuration (symmetric/asymmetric) are essential. Presented as a Society of Tribologists and Lubrication Engineers paper at the ASME/STLE Tribology Conference in Seattle, Washington, October 1–4, 2000