基于活塞环-缸套边界润滑模型的表面织构摩擦学性能评估

张利敏; 袁晓帅; 强慧; 刘旭康; 吕步高; 沈岩

doi:10.3969/j.issn.1001-2222.2024.05.002

车用发动机 >

2024 , Vol. 0 >Issue 5: 12

DOI: https://doi.org/10.3969/j.issn.1001-2222.2024.05.002

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基于活塞环-缸套边界润滑模型的表面织构摩擦学性能评估

张利敏 ,
袁晓帅 ,
强慧 ,
刘旭康 ,
吕步高 ,
沈岩

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（1.中国北方发动机研究所（天津），天津 300406;2.上海交通大学机械与动力工程学院，上海 200240;3.大连海事大学船机修造工程交通行业重点实验室，辽宁大连 116026）

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Evaluation of Surface Micro-Texture Tribological Performance Based on Boundary Lubrication Model of Piston Ring-Liner

ZHANG Limin ,
YUAN Xiaoshuai ,
QIANG Hui ,
LIU Xukang ,
LV Bugao ,
SHEN Yan

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(1.China North Engine Research Institute（Tianjin）,Tianjin 300406,China；2.School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China；3.Key Laboratory of Shipbuilding Engineering and Transportation Industry,Dalian Maritime University,Dalian 116026,China)

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摘要

高强化柴油机活塞环-缸套在上止点处的工作环境恶劣，多处于边界润滑状态。表面微织构被证明是改善表面摩擦学性能的有效手段，然而目前仍缺少考虑表面织构的边界润滑数值模型。建立了考虑表面织构和摩擦膜影响的活塞环缸套边界润滑模型，并应用该模型开展了考虑表面织构影响的磨损量计算，计算结果与边界润滑试验结果规律一致，且优选的表面织构方案较无织构方案磨损深度降低了33.7%。

关键词： 活塞环; 气缸套; 边界润滑; 摩擦; 织构; 磨损; 数学模型

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张利敏 , 袁晓帅 , 强慧 , 刘旭康 , 吕步高 , 沈岩 . 基于活塞环-缸套边界润滑模型的表面织构摩擦学性能评估[J]. 车用发动机, 2024 , 0(5) : 12 . DOI: 10.3969/j.issn.1001-2222.2024.05.002

Abstract

The working condition of piston ring-liner of highly-strengthened diesel engine at the TDC is so severe that boundary lubrication state may dominate at that moment. Surface micro-texture has been proved to be an effective approach to improve surface tribological properties. However, there still lacks boundary lubrication numerical models considering surface texture. The boundary lubrication model of piston ring-liner considering the effect of surface texture and tribofilms was established, which was used to calculate the wear loss that took into account of the effect of surface texture. The calculated results were consistent with the results of boundary lubrication test, and the wear depth of optimal selected surface texture was 33.7% lower than that of non-texture.

Key words： piston ring; liner; boundary lubrication; tribology; micro-texture; wear; numerical model

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