Failure investigation of a marine diesel engine timing gear

Wang, Zhiyong; Wang, Donghua; Dong, Lieyi; Li, Wanyou; Guo, Yibin

doi:10.1016/j.engfailanal.2019.104203

Cited by 9 publications

(2 citation statements)

References 12 publications

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“…The diesel engine timing gear system is one of the most important drive systems, which controls the working of the valve mechanism and fuel system to ensure proper operation of the diesel engine. (Yuan et al, 2020). When the combustion timing is not appropriate, there will be a loud knocking sound on the main engine in sequence, which can endanger the Main Engine.…”

Section: Findings and Discussionmentioning

confidence: 99%

Identify The Cause and Effect of Detonation In The Main Engine

Tjahjono,

Cahyadi,

Indriyani

et al. 2023

cset

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In the process of shipping, the main engine must always be maintained in prime condition to support the smooth sailing of a ship. In the main engine, there are often oddities or things that are not common in the main engine, one of which is knocking. The purpose of this study is to identify detonation that occurs in the main engine, analyze the causes and consequences of detonation. The research method used in this research is qualitative. Sources of research data obtained from data collection techniques through observation, interviews, documentation, and data validity techniques using internal validity. The place and time of the research were conducted at MV. Tanto Hemat for one year. SWOT method to analyze various factors that can be used to optimize blasting systematically against strengths, weaknesses, opportunities, and threats. The study results identify detonation in the main engine, namely ignition delay and pre-ignition in the main engine. Factors that cause detonation in the main engine are poor fuel quality, high pressure and temperature in the engine combustion chamber, and improper combustion timing. The impact caused by detonation on the main engine is detonation will cause an increase in fuel consumption, damage to engine spare parts, and carbon buildup in the combustion chamber.

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Section: Findings and Discussionmentioning

confidence: 99%

Identify The Cause and Effect of Detonation In The Main Engine

Tjahjono,

Cahyadi,

Indriyani

et al. 2023

cset

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show abstract

“…12 Renaudin et al 13 used the instantaneous speed signal to solve the speed fluctuation of the system so as to locate the bearing fault. Yuan et al 14 analyzed the torsional vibration to study the coupling influence of the fractured timing gear with its associated structures of a marine diesel engine. Charles et al 15 measured the instantaneous speed signal at the flywheel of the medium speed diesel engine through the magnetic pickup unit, and carried out the Fourier transform, and the transformation results in the polar coordinate system is used to study the qualitative relationship between the combustion process and the torsional vibrations of the crankshaft.…”

Section: Introductionmentioning

confidence: 99%

A new torsional vibration coupling model for transmission system in diesel generator

Chen

Guo

et al. 2021

International Journal of Engine Research

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The coupling between the crankshaft and the camshaft is neglected before in fault diagnosis which may lead to incomplete fault information. In this paper, a new torsional coupling model of a diesel generator transmission system is proposed for fault diagnosis. The natural frequency and forced torsional vibration response of the model are obtained by the system matrix method and Newmark-β method. For the system without considering the lumped mass of camshafts, some key natural frequencies are lost. The vibration dynamics are compared for the transmission system with and without the new coupling model. And important frequency responses are missed in the spectrums of the forced torsional vibration without the new coupling model. Finally, the new coupling model is implemented in fault diagnosis and the cause of an unusual vibration fault is deduced in the simulation, which confirms the feasibility of the proposed model in fault diagnosis.

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Optimization Study of Shaft System Vibration and Broken Tooth Fault Under the Influence of 3D Mixed Lubrication of Marine Diesel Engine Timing Gear System

Sun,

Shi,

et al. 2024

J. Vib. Eng. Technol.

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Failure investigation of a marine diesel engine timing gear

Cited by 9 publications

References 12 publications

Identify The Cause and Effect of Detonation In The Main Engine

Identify The Cause and Effect of Detonation In The Main Engine

A new torsional vibration coupling model for transmission system in diesel generator

Optimization Study of Shaft System Vibration and Broken Tooth Fault Under the Influence of 3D Mixed Lubrication of Marine Diesel Engine Timing Gear System

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