国外文献 > 1.轴承 > 4. 设计与分析 > 数值方法
关键词搜索：
| 标 题： |
A coupled finite-volume CFD solver for two-dimensional elasto-hydrodynamic lubrication problems with particular application to rolling element bearings
用于二维弹性流体动力学润滑问题的耦合有限体积CFD求解器，特别适用于滚动元件轴承 |
| 作 者： |
Hajishafiee, A.
Kadiric, A.
Ioannides, S.
Dini, D. |
| 关键词： |
CFD [CFD]
Fluid-solid interactions [ 流体-固体相互作用]
Elasto-hydrodynamic lubrication (EHL) [ 弹性流体动力润滑（EHL）]
Rolling element bearings [ 滚动轴承] |
| 出版年： |
2017 |
| 期刊名： |
Tribology International
摩擦学国际 |
| 年卷期： |
2017, vol.109 |
| 摘 要： |
This paper describes a new computational fluid dynamics methodology for modelling elastohydrodynamic contacts. A finite-volume technique is implemented in the 'OpenFOAM' package to solve the Navier-Stokes equations and resolve all gradients in a lubricated rolling-sliding contact. The method fully accounts for fluid solid interactions and is stable over a wide range of contact conditions, including pressures representative of practical rolling bearing and gear applications. The elastic deformation of the solid, fluid cavitation and compressibility, as well as thermal effects are accounted for. Results are presented for rolling-sliding line contacts of an elastic cylinder on a rigid flat to validate the model predictions, illustrate its capabilities, and identify some example conditions under which the traditional Reynolds-based predictions deviate from the full CFD solution.
本文介绍了一种用于建模弹性流体动力学接触的新计算流体力学方法。在“OpenFOAM”软件包中实现了有限体积法，用于求解纳维-斯托克斯方程，并解决润滑滚动-滑动接触中的所有梯度问题。该方法充分考虑了流体与固体之间的相互作用，在包括实际滚动轴承和齿轮应用中典型压力在内的多种接触条件下均表现出良好的稳定性。同时，该方法还考虑了固体的弹性变形、流体空化、压缩性以及热效应。文中通过弹性圆柱体在刚性平面上进行滚动-滑动线接触的实验结果，验证了模型预测的准确性，展示了其适用能力，并指出了某些情况下传统基于雷诺数的预测与完整CFD求解结果存在偏差的情形。 |
| 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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