The Analysis of the Lubrication Condition and Friction Losses of a Single Acting Cross Head Guide Shoe of a Low Speed Cross Head Diesel Engine: Part I—An Alogrithm For The Prediction of Oil Film Thickness

Abanteriba, Sylvester

doi:10.1080/10402000008982393

Cited by 8 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the case of low-speed two-stroke marine engines, Abanteriba 1,30,31 has performed noteworthy studies on the lubrication performance of the crosshead slipper-guide system and the friction, and the minimum oil film thickness (MOFT) were discussed. However, the dynamics of the crosshead slipper, which is directly related to the lubrication characteristics, was ignored.…”

Section: Introductionmentioning

confidence: 99%

A new comprehensive tribo-dynamic analysis for lubricated translational joints in low-speed two-stroke marine engines

Meng

et al. 2019

International Journal of Engine Research

View full text Add to dashboard Cite

In low-speed two-stroke marine engines, the effect of connecting rod inertia is important for the tribo-dynamics of crosshead slipper-guide and piston skirt-liner. However, this has not been considered in previous research. Therefore, a new tribo-dynamic model that considers the connecting rod inertia is presented for the two lubricated translational joints, and the lubricant viscosity–temperature properties are accurately incorporated into the model. The modified extended backward differentiation formulate method is used to solve the nonlinear stiff differential equations effectively. The simulation results show that the effect of connecting rod inertia on the dynamic characteristics of two translational joints is mainly observed during the latter half of the upward stroke. For the crosshead slipper, the amplitude of the transverse velocity is increased by 30% at a crank angle of approximately 300° compared to the early model that ignored the connecting rod inertia. With the increase of the connecting rod mass, the secondary motions of both the crosshead slipper and the piston skirt are increased. Furthermore, a decrease of the connecting rod mass can reduce the friction losses of the engine.

show abstract

Section: Introductionmentioning

confidence: 99%

A new comprehensive tribo-dynamic analysis for lubricated translational joints in low-speed two-stroke marine engines

Meng

et al. 2019

International Journal of Engine Research

View full text Add to dashboard Cite

show abstract

“…However, the analyzes provide the basis for the current research. Abanteriba conducted rigorous analysis on crosshead guide system for two stroke slow speed engines 17‐19 . In the publications, an algorithm to predict the oil film thickness of a single acting guide system for a slow speed engine was developed.…”

Section: Introductionmentioning

confidence: 99%

“…Abanteriba conducted rigorous analysis on crosshead guide system for two stroke slow speed engines. [17][18][19] In the publications, an algorithm to predict the oil film thickness of a single acting guide system for a slow speed engine was developed. In addition, an alternative simplified algorithm for accurate prediction of oil film thickness for the guide shoe surface was proposed.…”

Section: Introductionmentioning

confidence: 99%

Numerical study of piston group and crosshead guide system dynamics for a two‐stroke marine engine

Munyao

Jiang

2022

Engineering Reports

View full text Add to dashboard Cite

Two stroke slow speed diesel engines are mainly used in deep sea going vessels such as container ships, bulk carriers, and tankers. In this article, a numerical model is developed and solved to relate impact occurrence and magnitude on engine structure to rigid body tribodynamics of the crosshead guide system for a two‐stroke marine engine. To achieve this, the reciprocating piston group is coupled to the crosshead guide shoes through the crosshead guide pin. The resulting second order nonlinear differential equations are solved for displacements, velocities, and friction characteristics of the system. The rigid body motions are important in identifying occurrences and the intensities of transient impacts between contacting surfaces. These impacts influence noise and vibration characteristics of the engine. A study of the coupled system at different engine running speeds as well as varying crosshead guide system clearances is performed. It is observed that secondary displacements, velocities, and friction characteristics increase with increase in speed and clearance on the crosshead guide system. Consequently, the impact on the engine structure increase with increase in these tribodynamic characteristics of the system. This impact is transferred to the engine surface as vibration and noise responses.

show abstract

“…Moreover, such studies have only been carried out under the rated conditions. Abanteriba [20][21][22] established a simplified model of the lubrication performance of a crosshead slipper, focusing on the minimum oil film thickness and friction loss of the crosshead slipper under the rated conditions.…”

Section: Introductionmentioning

confidence: 99%

Transient tribo-dynamic analysis of crosshead slipper in low-speed marine diesel engines during engine startup

Meng

Dong

et al. 2020

Friction

View full text Add to dashboard Cite

A crosshead slipper-guide system, which bears a significant thrust force, is an essential friction pair in low-speed marine diesel engines. Owing to the low moving speed of the crosshead slipper during engine startup, it is difficult to form good hydrodynamic lubrication between the crosshead slipper and guide. Therefore, a detailed analysis of the crosshead slipper during engine startup is needed. In this study, a new transient tribo-dynamic model for a crosshead slipper during the engine startup process is presented. The model consists of a mixed lubrication model of the crosshead slipper-guide and dynamic models of the piston assembly, crosshead assembly, connecting rod, and crankshaft. The tribo-dynamic performances of the crosshead slipper during startup and under the rated conditions were simulated and compared. The results show that the tribo-dynamics of the crosshead slipper during the startup process are significantly different from those under the rated conditions. Some measures beneficial for the low friction of a crosshead slipper-guide under the rated conditions may significantly increase the friction loss of the crosshead slipper-guide system during the startup process.

show abstract

The Analysis of the Lubrication Condition and Friction Losses of a Single Acting Cross Head Guide Shoe of a Low Speed Cross Head Diesel Engine: Part I—An Alogrithm For The Prediction of Oil Film Thickness

Cited by 8 publications

References 1 publication

A new comprehensive tribo-dynamic analysis for lubricated translational joints in low-speed two-stroke marine engines

A new comprehensive tribo-dynamic analysis for lubricated translational joints in low-speed two-stroke marine engines

Numerical study of piston group and crosshead guide system dynamics for a two‐stroke marine engine

Transient tribo-dynamic analysis of crosshead slipper in low-speed marine diesel engines during engine startup

Contact Info

Product

Resources

About