The piston ring-liner of highly strengthened diesel engine runs in the severe working condition of boundary lubrication on the top dead center, which has the great influence on the friction and wear performance of friction pair, yet its related numerical models are still undeveloped. A piston ring-liner boundary lubrication model considering the effect of tribofilms was established, and the key parameters of the model were calibrated experimentally. Finally, the friction coefficient and wear depth of the friction pair were predicted under typical working conditions based on the developed model and compared with the experimental results from reciprocating friction and wear test rig. And the deviation between test and prediction was less than 10%, which verified the validity of the model for engineering evaluation.
ZHANG Limin
,
YUAN Xiaoshuai
,
LV Bugao
,
WANG Yanrong
,
QIANG Hui
,
LIU Xukang
. Boundary Lubrication Model of Piston RingLiner for Highly Strengthened Diesel Engine[J]. Vehicle Engine, 2023
, 0(6)
: 84
-89
.
DOI: 1001-2222.2023.06.012
