角度偏心率对直升机齿轮箱唇缘密封性能的影响

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2025-04-01 DOI:10.1016/j.triboint.2025.110676

Jian Wei , CaiHong Liu , Fei Guo , Jing Tian

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引用次数: 0

摘要

旋唇密封是直升机齿轮箱的关键部件，不可避免地存在角度偏心。本文建立了混合润滑条件下考虑角偏心的数值模拟模型，分析了不同偏心和温度条件下唇形密封件的接触特性和密封性能。结果表明：偏心使接触面积呈正弦波形，接触力呈“M”形，摩擦力矩和泄漏率减小；随着温度的升高，接触面积向液侧移动，接触宽度增大，接触力和摩擦力矩减小，泄漏率增大。实验结果与计算结果的对比误差在10%以内，模型具有较高的可靠性。

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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Effect of Angle Eccentricity on Lip Seal Performance of Helicopter Gearbox

Rotary lip seals are key components of helicopter gearboxes, which inevitably have angle eccentricity. In this paper, a numerical simulation model considering angular eccentricity under mixed lubrication conditions is proposed to analyze the contact characteristics and sealing performance of lip seals under different eccentricity and temperature conditions. The results show that the eccentricity leads to a sinusoidal waveform contact area, an “M” shaped contact force, and reduced friction torque and leakage rate. With the increase of temperature, the contact area moves to the liquid side, the contact width increases, the contact force and friction torque both decrease, and the leakage rate increases. The error of comparison between experimental and calculated results is within 10%, and the model has high reliability.

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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.