Purpose

This paper aims to present the mixed elastohydrodynamic lubrication (EHL) model and obtain the leakage characteristics for the skeleton reciprocating oil seal.

Design/methodology/approach

The model consists of a finite element analysis of the contact pressure, a fluid mechanics analysis of the fluid film, a contact analysis of the asperity contact pressure, a deformation analysis of the seal lip and an iterative numerical simulation process.

Findings

Simulation results show that the leakage is in direct proportion to the seal roughness and speed, and in inverse proportion to the fluid viscosity. Comparisons with the experimental results verify the validity of the mixed EHL model.

Originality/value

This study provides a helpful method to calculate the leakage of the skeleton reciprocating oil seal, which shortens its development cycles.

中文翻译：

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骨架往复油封混合EHL数值分析及泄漏试验

目的

本文旨在提出混合弹性流体动力润滑（EHL）模型并获得骨架往复式油封的泄漏特性。

设计/方法/方法

该模型由接触压力的有限元分析、流体膜的流体力学分析、凹凸接触压力的接触分析、密封唇的变形分析和迭代数值模拟过程组成。

发现

仿真结果表明，泄漏量与密封粗糙度和速度成正比，与流体粘度成反比。与实验结果的比较验证了混合 EHL 模型的有效性。

原创性/价值

本研究为骨架往复式油封的泄漏量计算提供了一种有用的方法，缩短了其开发周期。