混合润滑条件下的斯特封高速摩擦与密封特性

doi:10.3969/j.issn.1004-132X.2021.05.004

摘要/Abstract

摘要： 为准确研究斯特封高速摩擦与密封特性，基于混合润滑理论，综合流体空化效应、密封接触变形和微观粗糙峰接触等因素影响，建立了斯特封摩擦与密封的数值计算模型。研究了往复运动速度和密封压力对油膜厚度、摩擦力和泄漏量的影响，搭建了往复密封试验台来验证模型的准确性。结果表明：计算摩擦力与实验摩擦力相近。混合润滑模型能更好地模拟高速柱塞副斯特封的摩擦与密封特性，油膜压力与粗糙度接触压力共同影响密封性能，但粗糙度接触摩擦起主导作用。

关键词: 柱塞, 动密封, 混合摩擦, 润滑

Abstract: A numerical model of step seal was established which accounts for combined effects of fluid cavitation, elastic contact deformation, and micro asperity contact mechanics to accurately investigate high speed friction and sealing characteristics based on mixed lubrication theory. The effects of sealed pressure and reciprocating velocity on friction, leakage, as well as film thickness distributions were analyzed. Reciprocating experiment rig was conducted to verify the accuracy of the proposed model. The results show that experimental frictions are similar to numerical calculated frictions. The mixed lubrication model may simulate sealing characteristics of high-speed piston pair better. Fluid pressure and contact pressure affect sealing performance together, while contact friction of roughness is dominant.

Key words: plunger, dynamic seal, mixed friction, lubrication

中图分类号:

TH137
TB42

李永康1，2;王军1;廉自生1，2. 混合润滑条件下的斯特封高速摩擦与密封特性[J]. 中国机械工程, DOI: 10.3969/j.issn.1004-132X.2021.05.004.

LI Yongkang1,2;WANG Jun1;LIAN Zisheng1, 2. High-speed Friction and Sealing Characteristics of Step Seal under Mixed Lubrication Conditions[J]. China Mechanical Engineering, DOI: 10.3969/j.issn.1004-132X.2021.05.004.

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http://www.cmemo.org.cn/CN/Y2021/V32/I05/533

参考文献

［1］蔡智媛, 王冰清, 彭旭东, 等. 基于安装过程的O形圈安装结构优化分析［J］. 中国机械工程, 2019, 30(22):2691-2697.
CAI Zhiyuan, WANG Bingqing, PENG Xudong, et al. Optimization Analysis of O-ring Installation Structures with Installation Processes［J］. China Mechanical Engineering, 2019, 30(22):2691-2697.
［2］JOHANNESSON H L. Oil Leakage and Friction Forces of Reciprocating O-ring Seals Considering Caviatation［J］. Journal of Lubrication Technology, 1983, 105(2):288-296.
［4］欧阳小平, 薛志全, 彭超, 等. 航空作动器的VL密封特性分析［J］. 浙江大学学报(工学版), 2015, 49(9):1755-1761.
OUYANG Xiaoping, XUE Zhiquan, PENG Chao, et al. Performance Analysis on VL Seal in Aircraft Cylinder［J］. Journal of Zhejiang University (Engineering Science), 2015, 49(9):1755-1761.
［4］SALANT R F, MASER N, YANG B. Numerical Model of a Reciprocating Hydraulic Rod Seal［J］. Journal of Tribology-Transactions of the ASME, 2007, 129(1):91-97.
［5］王冰清，彭旭东，孟祥铠. 基于软弹流润滑模型的液压格莱圈密封性能分析［J］. 摩擦学学报, 2018, 38(1):75-83.
WANG Bingqing, PENG Xudong, MENG Xiangkai. Analysis of Sealing Performance of a Hydraulic Glyd-ring Seal Based on Soft EHL Model［J］. Tribology, 2018, 38(1):75-83.
［6］XIANG C, GUO F, JIA X H, et al. Thermo-elastohydrodynamic Mixed-lubrication Model for Reciprocating Rod Seals［J］. Tribology International, 2019, 140:105894.
［7］陶文铨. 流体传热学［M］. 二版. 西安：西安交通大学出版社，2017:99-101.
TAO Wenquan. Numerical Heat Transfer［M］. 2nd Ed. Xian:Xian Jiaotong Univervsity Press, 2017:99-101.
［8］解芳, 冯长虹, 王召兴, 等. 宽温度域工况下汽车水泵O形密封圈的密封性研究［J］. 中国机械工程, 2014, 25(15):2013-2016.
XIE Fang, FENG Changhong, WANG Shaoxing, et al. Study on Sealing Property of O-ring Seal of Automobile Water Pump under Broad Temperature Region［J］. China Mechanical Engineering, 2014, 25(15):2013-2016.
［9］GREENWOOD J A, WILLIAMSON J B P. Contact of Nominally Flat Surfaces［J］. Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1966, 295(1442):300-319.
［10］PENG C, OUYANG X, ZHU Y, et al. Investigation into the Influence of Stretching on Reciprocating Rod Seals Based on a Novel 3-D Model vs Axisymmetric Model［J］. Tribology International, 2018, 117:1-14.
［11］PATANKAR S V. Numerical Heat Transfer and Fluid Flow［M］. Boca Raton:CRC Press, 1980:52-54.
［12］PATIR N, CHENG H S. Application of Average Flow Model to Lubrication between Rough Sliding Surfaces［J］. Transactions of the ASME, 1979, 101(2):220-230.
［13］PENG C, GUO S R, OUYANG X P, et al. Mixed Lubrication Modeling of Reciprocating Seals Based on a Developed Multiple-grid Method［J］. Tribology Transactions, 2018, 61(6):1151-1161.

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