Million Mile Bearings: Lessons From Diesel Engine Bearing Failure Analysis

1999 ◽  
Author(s):  
J. A. Mc Geehan ◽  
P. R. Ryason
Keyword(s):  
Diesel Engine ◽  
Failure Analysis ◽  
Bearing Failure ◽  
Engine Bearing

Failure Analysis on Diesel-Engine Valve Springs

2009 ◽  
Vol 9 (4) ◽  
pp. 329-334 ◽  
Author(s):  
Zhi-Wei Yu ◽  
Xiao-Lei Xu
Keyword(s):  
Diesel Engine ◽  
Failure Analysis ◽  
Engine Valve

Stress Distribution Analysis on Alloy Layer of High Power Marine Diesel Engine Bearing Bush

2013 ◽  
Vol 331 ◽  
pp. 148-152
Author(s):  
Xiu Xu Zhao ◽  
Zhi Xiang Hu ◽  
An Jian Huang
Keyword(s):  
Diesel Engine ◽  
High Power ◽  
Alloy Layer ◽  
Marine Diesel Engine ◽  
Oil Film ◽  
Marine Diesel ◽  
Bearing Alloy ◽  
Stress And Strain Distribution ◽  
Engine Bearing ◽  
Oil Film Pressure

According to the characteristics of large size, small clearance ratio, high oil film pressure and thin oil film thickness in the actual conditions of high power marine diesel engine bearing, this Paper analyzes oil film pressure distribution on inner surface of bearing bush based on the finite difference method, uses finite element method to establish the hierarchical model, and analyzes stress and strain distribution on bearing alloy. In addition, this Paper researches the changes of stress and strain distribution on bearing alloy layer when alloy layer thickness changes for the optimization design of high power marine diesel engine bearing bush.

A study on diesel engine crankshaft bearing failure analysis with consideration of bearing lubrication

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Qi Liu ◽  
Baiqi Huo ◽  
Yunsheng Liu ◽  
Junchao Zhu
Keyword(s):  
Diesel Engine ◽  
Failure Mechanism ◽  
Working Condition ◽  
Mixed Lubrication ◽  
Bearing Failure ◽  
Content Type ◽  
Lubrication Performance ◽  
Lubrication Characteristics ◽  
The Relationship ◽  
Engine Crankshaft

Purpose The edge of diesel engine crankshaft main bearing is more likely to fail in its real working condition. This paper aims to study the bearing failure mechanism by finding the relationship between bearing lubrication characteristics and its working condition. Design/methodology/approach This work builds the mixed lubrication model of crankshaft bearing to analyze the cause of bearing abnormal wear, and the finite difference method was used to solving the average Reynolds equation. During the analysis, journal misaligned angle, external load and roughness are considered. Findings The result shows that the wear of the diesel engine crankshaft bearing happens in engine startup phase and the bottom of the bearing are more prone to be excessively worn. Under the influence of journal misalignment, bearing asperity contact load and speed range of mixed lubrication will increase markedly. The edge of the bearing will be excessively worn. The effect of misalignment on bearing lubrication performance varies under different shaft rotation speed. Originality/value The former research studies on crankshaft bearing either just focused on its lubrication characteristics or interested in its failure types (wear, adhere, cavitation). This paper studies the relationship between bearing failure mechanism and lubrication performance.

Failure analysis of ductile iron crankshaft in compact pickup truck diesel engine

Structures ◽  
2022 ◽  
Vol 36 ◽  
pp. 482-492
Author(s):  
Karim Aliakbari ◽  
Reza Masoudi Nejad ◽  
Tohid Akbarpour Mamaghani ◽  
Pooya Pouryamout ◽  
Hossein Rahimi Asiabaraki
Keyword(s):  
Diesel Engine ◽  
Failure Analysis ◽  
Ductile Iron ◽  
Pickup Truck

Application of X-Ray Measurement to Bearing Failure Analysis

1983 ◽  
Author(s):  
H. Nakashima ◽  
K. Maeda ◽  
N. Tsushima ◽  
H. Muro
Keyword(s):  
Failure Analysis ◽  
Bearing Failure ◽  
X Ray

Failure analysis of a leak-off oil pipe from injection valves of an off-shore operating diesel engine

2007 ◽  
Vol 14 (1) ◽  
pp. 196-208 ◽  
Author(s):  
Z. Mazur ◽  
A. Carvajal-Martínez ◽  
R. Muñoz-Quezada ◽  
R. García-Illescas
Keyword(s):  
Diesel Engine ◽  
Failure Analysis

Failure Analysis of Early Fracture for Diesel Engine Cylinder Liner

2012 ◽  
Vol 461 ◽  
pp. 177-181
Author(s):  
Jun Gu ◽  
Yuan Qiang Xu ◽  
Jing Jing Zhou
Keyword(s):  
Diesel Engine ◽  
Failure Analysis ◽  
Early Time ◽  
Cylinder Liner ◽  
Acute Angle ◽  
Engine Cylinder ◽  
Regulatory Measures ◽  
Engine Cylinder Liner

This article, through the cylinder jacket break phenomenon which occurs to the diesel engine early time carries on the failure analysis, suggests that the cylinder jacket material ingredient control is lax, causes the cylinder jacket material brittleness to be oversized, the tool escape acute angle is the cylinder jacket break primary cause, and proposes corresponding regulatory measures prevent the cylinder jacket early tithe break.

Failure analysis of diesel engine rocker arms

2006 ◽  
Vol 13 (4) ◽  
pp. 598-605 ◽  
Author(s):  
Z.W. Yu ◽  
X.L. Xu
Keyword(s):  
Diesel Engine ◽  
Failure Analysis
Sign in / Sign up

Export Citation Format

Share Document