A STRUCTURAL ANALYSIS AND TOPOLOGY OPTIMIZATION ON CYLINDER BLOCK OF HEAVY DUTY DIESEL ENGIN

The heavy duty diesel engine must have a large output for maintaining excellent mobility. In this study, a three-dimensional finite element model of a heavy-duty diesel engine was developed to conduct the stress analysis by using property of CGI. The compacted graphite iron (CGI) is a material currently under study for the engine demanded for high torque, durability, stiffness, and fatigue. The FE model of the heavy duty diesel engine section consisting of four half cylinders was selected. The heavy duty diesel engine section includes a cylinder block, a cylinder head, a gasket, a liner, a bearing cap, bearing and bolts. The loading conditions of engine are pre-fit load, assembly load, and gas load. A structural analysis on the result was performed in order to optimize on the cylinder block of the diesel engine.

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Stress Analysis of the Heavy Duty Diesel Engine with Compacted Graphite Iron

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.345-346.897 ◽

2007 ◽

Vol 345-346 ◽

pp. 897-900 ◽

Cited By ~ 1

Author(s):

Young Shin Lee ◽

Jae Ok Lee ◽

Young Jin Choi ◽

Se Hoon Lee ◽

Hyun Seung Lee ◽

...

Keyword(s):

Diesel Engine ◽

Stress Analysis ◽

Three Dimensional ◽

Element Model ◽

Fe Model ◽

Compacted Graphite Iron ◽

Heavy Duty ◽

Compacted Graphite ◽

Heavy Duty Diesel Engine ◽

Heavy Duty Diesel

The combat car used the heavy duty diesel engine must have a large output for maintaining excellent mobility. The compacted graphite iron (CGI) is a material currently under study for the heavy duty diesel engine demanded for high torque, durability, stiffness, fatigue. In this study, three dimensional finite element model of a heavy-duty diesel engine was developed to conduct the stress analysis by using property of CGI. The use of CGI property on the FE model was expected to result in improved distribution of distortions and stresses. The loading conditions of engine are assembly load and operational gas load.

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A STUDY ON THE FATIGUE ANALYSIS OF HEAVY DUTY DIESEL ENGINE

Modern Physics Letters B ◽

10.1142/s0217984908015620 ◽

2008 ◽

Vol 22 (11) ◽

pp. 929-934

Author(s):

YOUNG-SHIN LEE ◽

JEONG-PYO KONG ◽

JAE-OK LEE ◽

HYUN-SEUNG LEE ◽

JAE-HOON KIM ◽

...

Keyword(s):

Diesel Engine ◽

Structural Analysis ◽

Loading Condition ◽

Fatigue Analysis ◽

Compacted Graphite Iron ◽

Heavy Duty ◽

Compacted Graphite ◽

Heavy Duty Diesel Engine ◽

Heavy Duty Diesel ◽

Large Output

The heavy duty diesel engine must have a large output for maintaining excellent mobility. The compacted graphite iron (CGI) is a material currently under study for the engine demanded for high torque, durability and stiffness. In this study, structural analysis of heavy duty engine was carried out with ABAQUS, and the fatigue analysis was executed with FEMFAT using the result of structural analysis. We considered about three loading condition; pre-fit load, assembly load, gas load. Safety factors were investigated by assuming the engine was operated until 2 · 106 cycles with cyclic gas loading condition.

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Structural Analysis on the Heavy Duty Diesel Engine and Optimization for Bearing Cap

Transactions of the Korean Society of Mechanical Engineers A ◽

10.3795/ksme-a.2008.32.5.402 ◽

2008 ◽

Vol 32 (5) ◽

pp. 402-410 ◽

Cited By ~ 4

Author(s):

Jae-Ok Lee ◽

Young-Shin Lee ◽

Hyun-Seung Lee ◽

Jae-Hoon Kim ◽

Joon-Tak Jun ◽

...

Keyword(s):

Diesel Engine ◽

Structural Analysis ◽

Heavy Duty ◽

Heavy Duty Diesel Engine ◽

Heavy Duty Diesel ◽

Bearing Cap

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An Improved Phenomenological Soot Formation Submodel for Three-Dimensional Diesel Engine Simulations: Extension to Agglomeration of Particles into Clusters

Journal of Engineering for Gas Turbines and Power ◽

10.1115/1.2939003 ◽

2008 ◽

Vol 130 (6) ◽

Cited By ~ 4

Author(s):

Joan Boulanger ◽

W. Stuart Neill ◽

Fengshan Liu ◽

Gregory J. Smallwood

Keyword(s):

Experimental Data ◽

Diesel Engine ◽

Oxidation Process ◽

Soot Formation ◽

Three Dimensional ◽

Soot Oxidation ◽

Heavy Duty ◽

Heavy Duty Diesel Engine ◽

Agglomeration Effects ◽

Heavy Duty Diesel

An extension to a phenomenological submodel for soot formation to include soot agglomeration effects is developed. The improved submodel was incorporated into a commercial computational fluid dynamics code and was used to investigate soot formation in a heavy-duty diesel engine. The results of the numerical simulation show that the soot oxidation process is reduced close to the combustion chamber walls, due to heat loss, such that larger soot particles and clusters are predicted in an annular volume at the end of the combustion cycle. These results are consistent with available in-cylinder experimental data and suggest that the cylinder of a diesel engine must be split into several volumes, each of them with a different role regarding soot formation.

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Stress Analysis of the Heavy Duty Diesel Engine with Compacted Graphite Iron

The Mechanical Behavior of Materials X - Key Engineering Materials ◽

10.4028/0-87849-440-5.897 ◽

2007 ◽

pp. 897-900

Author(s):

Young Shin Lee ◽

Jae Ok Lee ◽

Young Jin Choi ◽

Se Hoon Lee ◽

Hyun Seung Lee ◽

...

Keyword(s):

Diesel Engine ◽

Stress Analysis ◽

Compacted Graphite Iron ◽

Heavy Duty ◽

Compacted Graphite ◽

Heavy Duty Diesel Engine ◽

Heavy Duty Diesel

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The Effects of Power Cylinder Design Parameters on Lube Oil Consumption of a Heavy Duty Diesel Engine

ASME 2008 Internal Combustion Engine Division Spring Technical Conference ◽

10.1115/ices2008-1661 ◽

2008 ◽

Cited By ~ 2

Author(s):

Ozgen Akalin ◽

Selcuk Cobanoglu ◽

Ahu Toygar ◽

Ozcan Gul ◽

Goktan Kurnaz ◽

...

Keyword(s):

Surface Roughness ◽

Diesel Engine ◽

Operating Conditions ◽

Cylinder Block ◽

Design Parameters ◽

Heavy Duty ◽

Oil Consumption ◽

Heavy Duty Diesel Engine ◽

Heavy Duty Diesel ◽

Cylinder Bore

In order to achieve fast and accurate oil consumption measurements, a real-time sulfur tracing method was developed employing a quadrupole mass spectrometer to analyze the sulfur dioxide concentration in the exhaust stream. A sampling system was designed to measure the oil consumption of separate cylinder groups sequentially under identical running conditions. The developed method enables the comparison of oil consumption of separate cylinder groups without disturbing the engine’s operation. Using this experimental method, steady-state oil consumption of a turbo-charged heavy-duty diesel engine was measured under various engine operating conditions. The effect of cylinder bore surface texture parameters on total lube oil consumption of the test engine was investigated simultaneously using a cylinder block having dissimilar honing patterns on each cylinder group. The results showed that the lube oil consumption of the engine is significantly affected by the cylinder bore surface roughness. The cylinder sets with high surface roughness demonstrated significantly higher lube oil consumption when the cylinder sets with high and low surface roughness was compared simultaneously.

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