首页|Effect of temperature on tribofilm growth and the lubrication of the piston ring-cylinder liner system in two-stroke marine engines

Effect of temperature on tribofilm growth and the lubrication of the piston ring-cylinder liner system in two-stroke marine engines

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This study is an optimized extension based on the authors'previous research on the tribo-chemical reaction under constant temperature field of two-stroke internal combustion engines(ICEs).It establishes a coupled analysis model that considers the tribo-chemical reactions,dynamic contact,and interface lubrication of the piston ring-cylinder liner(PRCL)system under transient temperature conditions.In this study,for the first time,the prediction of the tribofilm thickness and its influence on the surface micro-topography(the comprehensive roughness)are coupled in the working temperature field of the PRCL system,forming an effective model framework and providing a model basis and analytical basis for subsequent research.This study findings reveal that by incorporating temperature and tribofilm into the simulation model,the average friction deviation throughout the stroke decreases from 8.92%to 0.93%when compared to experimental results.Moreover,the deviation during the combustion regime reduces from 39.56%to 7.34%.The proposed coupled model provides a valuable tool for the evaluation of lubrication performance of the PRCL system and supports the analysis software forward design in two-stroke ICEs.

tribofilmpiston ring-cylinder liner(PRCL)systemtemperaturecomprehensive roughnesstwo-stroke internal combustion engines(ICEs)

Xiuyi LYU、Jiang HU、Yunchuan WANG、Jinlu SHENG、Xuan MA、Tongyang LI、Chang GE、Xiqun LU

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Chongqing Jiaotong University,Chongqing 400074,China

Chongqing Metropolitan College of Science and Technology,Chongqing 402167,China

Harbin Engineering University,Harbin 150001,China

Yantai Zhongke Research Institute of Advanced Materials and Green Chemical Engineering,Yantai 264006,China

State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China

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Shandong Provincial Natural Science Foundation

ZR2022QE183

2024

10.1007/s40544-024-0872-9

摩擦(英文)

摩擦(英文)

CSTPCDEI
ISSN：2223-7690
年,卷(期)：2024.12(8)
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