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Cavitation is common and important in hydrodynamic lubrication that generally causes the rupture of lubrication film and affects the performance of the lubrication, which even leads to cavitation erosion in some situations. This is especially important in connecting-rod bearings in diesel engines. Thus, accurately characterizing cavitation is of great significance. Herein, a multi-body dynamic model of an engine considering elastohydrodynamic lubrication (EHL) was established based on the AVL-EXCITE software platform. According to the EHL results, a finger-like cavitation region in the big-end bearing of the connecting rod was distributed in the lubrication outlet during the work stroke. Meanwhile, the cavitation bubbles in the cavitation region might collapse and result in cavitation erosion when the oil supply bore passed through. This provides a potential method to predict the occurrence of cavitation erosion. Furthermore, the influences of lubricating-oil viscosity and oil-supply pressure on cavitation characteristics were investigated. An appropriate increase in these two parameters can slow down the cavitation effect.
REYNOLDS O. Ⅳ. On the theory of lubrication and its application to Mr. Beauchamp Tower's experiments, including an experimental determination of the viscosity of olive oil[J]. Philosophical Transactions of The Royal Society of London, 1886, 177: 157-234.
ELROD H G. A computer program for cavitation and starvation problems[J]. Cavitation and Related Phenomena in Lubrication, 1974, 37: 37-41.
ELROD H G. A cavitation algorithm[J]. Journal of Lubrication Technology, 1981, 103: 350-354.
VIJAYARAGHAVAN D, KEITH Y G. Development and evaluation of cavitation algorithm[J]. Tribology Transactions, 1989, 32: 225-233.
VIJAYARAGHAVAN D, BREWE D E, KEITH Y G. Effect of out-of-roundness on the performance of a diesel engine connecting-rod bearing[J]. ASME Journal of Tribology, 1993, 115(3): 538-543.
VINCENT B, MASPEYROT P, FRENE J. Cavitation in dynamically loaded journal bearings using mobility method[J]. Wear, 1996, 193(2): 155-162.
KORNFELD M, SUVOROV L. On the destructive action of cavitation[J]. Journal of Applied Physics, 1944, 15(6): 495-506.
BENJAMIN T B, ELLIS A T. The collapse of cavitation bubbles and the pressures thereby produced against solid boundaries[J]. Philosophical Transactions for the Royal Society of London. Series A, Mathematical and Physical Sciences, 1966, 260: 221-240.
PHILIPP A, LAUTERBORN W. Cavitation erosion by single laser produced bubbles[J]. Journal of Fluid Mechanics, 1998, 361: 75-116.
WANG Q, LIU W, ZHANG A M, et al. Bubble dynamics in a compressible liquid in contact with a rigid boundary[J]. Interface Focus, 2015, 5(5): 20150048.
MENG F L, ZHANG B Y. Cavitation erosion problems in dynamically loaded plain bearings: Analysis and prediction[J]. Internal Combustion Engine & Parts. 2006(1): 25-29. (in Chinese)
LI J, CHNE H S. Numerical simulation of micro bubble collapse near solid wall in FLUENT environment[J]. Tribology, 2008(4): 311-315. (in Chinese)
XIA D S, SUN C G, LIU Y Z, et al. Numerical simulation of micrometer-sized bubble collapse near a rigid boundary[J]. Tribology, 2018, 38(6): 711-720. (in Chinese)
JAKOBSSON B, FLOBERG L. The finite journal bearing considering vaporization[J]. Transactions of Chalmers University Technology, 1957: 190.
FLOBERG L. On journal bearing lubrication considering the tensile strength of the liquid lubricant[M]. Lund, Sweden: Lund Technical University Press, 1973.
OLSSON K O. Cavitation in dynamically loaded bearings[J]. Transactions of Chalmers University of Technology, 1965: 308.
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