An improved mixed lubrication model for revealing the mechanism of high speed and frictional heat on sealing performance

被引：10

作者：

Chen, Shengshan ^{[1
]}

Guo, Fei ^{[1
]}

Wang, Wentao ^{[2
]}

Wang, Yuming ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Tribol Adv Equipment, Beijing 100084, Peoples R China

[2] Shanghai Ideal Automot Technol Co Ltd, Shanghai 201805, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2024年 / 191卷

关键词：

Lip sealing; Micro morphology; High speed rotation; Frictional heat; ROTARY LIP SEAL; ELASTOHYDRODYNAMIC ANALYSIS; CAVITATION; FLOW; SHAFT;

D O I：

10.1016/j.triboint.2023.109147

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This study presents a numerical model that incorporates the actual micro morphology of sealing lip and rotating shaft to elucidate the sealing behavior in high-speed rotating lip seals operating under mixed lubrication conditions. The model explores the intricate interplay between hydrodynamics at the interface, macro-scale solid mechanics, micro-contact mechanics of surfaces, and the heat generated by friction at the lip. Based on this model, this paper quantitatively predicts the leakage rates and friction torque under various operating conditions and lip seal structural parameters, shedding light on the influence of high-speed frictional heat on sealing performance.

引用

页数：17

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