A fully coupled tribo-dynamic model for piston-ring-liner system

Gao, Lining; Cui, Yi; Xu, Zhiwei; Fu, Yan; Liu, Shuo; Li, Yafen; Hou, Xinrong

doi:10.1016/j.triboint.2022.107998

Cited by 14 publications

(2 citation statements)

References 44 publications

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“…Many researchers including [7][8][9] have investigated and analyzed the gas flow in the system piston-rings-cylinder [10].There are two ways for leakage passage: one way is to generate the relative motion of the piston ring and the ring groove, the gas flowed from the ring body and the ring groove clearance. The gap between the piston ring body and ring groove was very small, thus through this channel, the gas had small amount of leakage.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Piston Rings Made with Aluminum Titanium Carbide (AlTiC-75-2) and Carbon Cast Steel (AISI 1540) Materials Using Numerical Method

Duodu,

Hinneh,

Kuttin

et al. 2024

JERR

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Aim: The main purpose of this study is to perform a comparative analysis of piston rings made with aluminum titanium carbide (AlTiC-75-2) and carbon cast steel (AISI 1540) materials using numerical method. Study Design: Numerical methods. Materials and Methods: The 3D piston rings were modelled with SOLIDWORDS version 2019 and imported to ANSYS 2020 RI environment for simulation and analysis. Results: The study revealed that AISI 1540 and AlTiC-75-2 had maximum deformations of 1.0356 mm and 1.0773 mm, respectively. Also, when the equivalent elastic strains of the piston rings were compared, it was revealed that, the maximum and minimum elastic strain of the AlTiC-75-2 piston was 4.8826e-3 and 2.2581e-5, respectively, whiles the maximum and minimum elastic strain of AISI 1540 was 2.1878e-5 and 2.1878e-5 respectively. Numerical results further showed that AISI 1540 piston suffered the least elastic strain while the AlTiC piston ring endured more elastic strain. Furthermore, results showed that the maximum Von Mises stresses induced in AlTiC-75-2 and AISI 1540 piston rings were 915.2 MPa and 911.27 MPa, respectively, which implies that stresses induced in both rings were beneath the compressive yield strengths of the individual materials, therefore both rings could withstand the load imposed. Conclusion: Result shows that the AISI 1540 ring has high minimum value than AlTiC which makes it more suitable material in terms of failure as against AlTiC-75-2 with a low minimum safety factor of 0.094187 as against 0.10182 for carbon cast steel. The study therefore recommends that AlTiC-75-2 should be considered as one of the most suitable materials for piston ring design.

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Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Piston Rings Made with Aluminum Titanium Carbide (AlTiC-75-2) and Carbon Cast Steel (AISI 1540) Materials Using Numerical Method

Duodu,

Hinneh,

Kuttin

et al. 2024

JERR

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show abstract

“…The operation of each friction pair not only affects the fuel economy and power of the diesel engine but also affects the service life of the engine. Studies have shown that, as it is the most important friction pair in the engine [1][2][3], the friction loss generated by the piston-cylinder liner accounts for 30-35% of the engine friction loss [4,5]; therefore, reducing the friction loss of the piston-cylinder liner friction pair plays an important role in energy saving and emission reduction, as well as in improving engine efficiency. The main functions of the piston ring set are to seal and distribute the lubricating oil on the surface of the cylinder liner, and the movement of the piston ring set within the cylinder liner has a significant effect on minimum oil film thickness, lubricant consumption, and friction losses [6,7].…”

Section: Introductionmentioning

confidence: 99%

Influence of Liner Surface with Parameterized Pit Texture on the Friction Characteristics of Piston Rings

Zhang,

Gong,

Liu

et al. 2024

Processes

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The arrangement of a pit-shaped surface texture on the surface of a cylinder liner significantly affects reductions in piston ring friction, and the influence of the structural parameters and spatial distribution on piston ring friction power consumption is unclear. In this paper, the diameter, depth, axial spacing distance, and radial spacing distance of the pits on the inner surface of a cylinder liner were used as variable parameters to process the surface textures of different schemes, and then a friction and wear test was carried out on UMT piston ring–cylinder liner specimens, several texture schemes with the best anti-friction effect were selected, an engine bench test was carried out by comparing these texture schemes with non-texture schemes, and the frictional torque and fuel consumption of the engine were studied at different oil temperatures. The results show that the depth of the pits in the surface texture of a cylinder liner has a greater influence on the friction reduction effect, followed by the radius. The higher the oil temperature in the engine bench test, the greater the impact of the surface texture. The reduction in fuel consumption was greater in the lower-speed region after structuring the textured cylinder liner compared to the non-textured cylinder liner. Specifically, the friction coefficient was mainly affected by the depth of the pits, and the depths of the pits in the texture schemes with good friction reduction effect were all 17–19 μm. The best friction reduction could be achieved when the pit radius is around 50 μm, with little difference in pit depth. When the oil temperature was 95 °C, the average drag torque reduction was about 1.69 Nm; when the oil temperature was 105 °C, the decrease was about 2.54 Nm; and when the oil temperature was 105 °C, the decrease was about 4.53 Nm. After adding the surface texture of the cylinder liner, the fuel consumption rate of the engine equipped with the structured cylinder liner was generally reduced compared with that of the original cylinder liner engine. Among them, the average and subsequent consumption rate of surface assembly scheme 11 decreased the most, with a value of 1.3 g/kwh.

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Transient heat transfer and deformation characteristics of a bidirectional compressor cylinder block-piston assembly under multi-field coupling

Zhang,

Huang,

2024

Applied Thermal Engineering

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A fully coupled tribo-dynamic model for piston-ring-liner system

Cited by 14 publications

References 44 publications

Comparative Analysis of Piston Rings Made with Aluminum Titanium Carbide (AlTiC-75-2) and Carbon Cast Steel (AISI 1540) Materials Using Numerical Method

Comparative Analysis of Piston Rings Made with Aluminum Titanium Carbide (AlTiC-75-2) and Carbon Cast Steel (AISI 1540) Materials Using Numerical Method

Influence of Liner Surface with Parameterized Pit Texture on the Friction Characteristics of Piston Rings

Transient heat transfer and deformation characteristics of a bidirectional compressor cylinder block-piston assembly under multi-field coupling

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