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首页> 外文期刊>Tribology International >A thermohydrodynamic approach for single-film and double-film floating disk fixed thrust bearings verified with experiment
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A thermohydrodynamic approach for single-film and double-film floating disk fixed thrust bearings verified with experiment

机译：用实验验证的单膜和双膜浮盘固定推力轴承的热流动力学方法

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摘要

A comprehensive thermohydrodynamic model of single-film and double-film floating disk thrust bearings is presented. Reynolds and energy equations are solved and a modified groove mixing model is used to predict the oil leading edge temperature. A multi-step search algorithm is used to find floating disk rotational speed, and the two film thicknesses. Results are validated with experimental data. It is shown that the floating disk rotates with 30%-50% of the runner rotational speed. The turbine side in general hotter with a thinner film thickness. The main advantage of a double-film floating disk bearings is in their up to 40% lower power loss compared to a single-film. The introduced model provides a practical design tool for the fixed pad thrust bearings.
机译：提出了一种单膜和双膜浮动盘推力轴承的综合热流动正常模型。 求解雷诺和能量方程，并使用改进的凹槽混合模型来预测油前缘温度。 多步骤搜索算法用于寻找浮动磁盘转速和两个膜厚度。 结果用实验数据验证。 结果表明，浮动盘以30％-50％的流道转速旋转。 涡轮机侧一般更热，薄膜厚度更薄。 与单胶片相比，双膜浮盘轴承的主要优点在于功率损耗的较高至40％。 介绍的型号为固定垫推力轴承提供了一种实用的设计工具。

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