用于分析轴颈轴承空化区流体膜的速度-滑移模型

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2016-05-01 DOI:10.1016/j.triboint.2016.01.025

Feng Cheng , Weixi Ji

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引用次数: 29

摘要

利用空化区域内的连续方程、Navier-Stokes方程和滑移长度方程推导出了雷诺数方程。采用有限差分法得到滑动轴承的静、动态参数。通过与已有试验结果的比较，表明该模型能较好地预测其承载能力。结果还表明，空化区的滑移效应对油膜压力、承载能力、动特性系数和滑动轴承的稳定性都有影响。通过一个动态加载轴颈轴承的算例进一步说明了该算法的良好性能，得到了轴颈中心随时间的演化规律。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A velocity-slip model for analysis of the fluid film in the cavitation region of a journal bearing

The Reynolds equation is derived by using the continuity equation, Navier–Stokes equation and slip length equation within cavitation region. A finite difference method are used to obtain the static and dynamic parameters of journal bearing. A comparison with the available experimental results reveals that the load capacity is well predicted by the present model. The results also show that slip effects in the cavitation region have an influence on the oil film pressure, the load capacity, the dynamic characteristics coefficients and the stability of journal bearing. The good behavior of the proposed algorithm is further illustrated in one example of a dynamically loaded journal bearing, and evolution with time of the journal center is well obtained.

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来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.