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Effect of surface texture on the improvement of tribological performance of ring‐deformed liner conjunction under different oil supplies
Author(s) -
Liu Cheng,
Lu Yanjun,
Zhang Yongfang,
Li Sha,
Chen Ang,
Kang Jianxiong,
Müller Norbert
Publication year - 2020
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.1482
Subject(s) - lubrication , tribology , materials science , oil supply , texture (cosmology) , enhanced data rates for gsm evolution , composite material , mechanical engineering , computer science , engineering , telecommunications , image (mathematics) , artificial intelligence
In this work, a tribological performance analysis is numerically conducted for a surface‐textured ring‐deformed liner conjunction. In the analysis, three different distribution patterns of surface texture are designed and machined on the surface of ring. To evaluate the frictional properties of the textured rings under mixed lubrication regime, a transient lubrication model considering the oil film thermal effect is developed. Meanwhile, to evaluate the oil film consumption and the transition of lubrication condition in an engine cycle, an oil transport model is built to determine the boundary positions of lubrication zone. Based on the models, the oil consumption, MOFT (minimum oil film thickness), friction force, power loss, and FMEP (friction mean effective pressure) value of the textured ring are studied under different oil supplies. The frictional characteristics of the rings with various distribution patterns of surface texture are also analyzed and compared. The results show that the edge‐textured ring can improve the tribological performance significantly, and the improvement varies with the oil supply.