An Analysis of the Factors Influencing Cavitation in the Cylinder Liner of a Diesel Engine

Tong, Dehui; Qin, Shunshun; Liu, Quan; Li, Yuhan; Lin, Jiewei

doi:10.32604/fdmp.2022.019768

Cited by 1 publication

(1 citation statement)

References 23 publications

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“…Peiyou [26] calculated the local peak acceleration of the cylinder liner based on the combination of the analytical formulation and finite element method introduced in the previous paper, which was compared with the cavitation failure area in the actual case. Zhang [36] and Lin et al [17] used computational fluid dynamics (CFD) methods to calculate the gas volume fraction distribution of the coolant, which uses the cylinder liner vibration as the motion boundary of the flow field. Obviously, the above models are more suitable for postfailure analysis and trending studies due to the lack of accurate dynamics simulations with the critical cavitation evaluation parameters.…”

Section: Introductionmentioning

confidence: 99%

Modelling and evaluating piston slap-induced cavitation of cylinder liners in heavy-duty diesel engines.

Liu,

Sun,

Zhu

et al. 2023

Eksploatacja i Niezawodność – Maintenance and Reliability

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Cavitation erosion of cylinder liner seriously affects the operational reliability and service life of heavy-duty diesel engines. The accuracy of the modeling-based cavitation risk evaluation is limited by the unclear correspondence between cylinder liner vibration and coolant cavitation. This report is intended to investigate the correspondence between cylinder liner vibration and coolant pressure by combining vibration cavitation test, pressure gradient calculation, and visualization observation. The cavitation risk of the cylinder liner under piston slap is also quantitatively analyzed based on the nonlinear structural dynamics model. The results show that the occurrence of cavitation will cause a nonlinear relationship between the cylinder liner acceleration and the coolant pressure. The difference in cavitation risk for each cylinder is related to the structural modal characteristics of the crankcase. In addition, the effect of piston-liner clearance and piston pin offset on the cavitation risk is investigated based on the dynamics model.

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Section: Introductionmentioning

confidence: 99%