A Numerical Analysis of the Interaction between the Piston Oil-Film and the Elastic Structure in an Internal Combustion Engine

2013 ◽  
Vol 871 ◽  
pp. 32-38
Author(s):  
Mazouzi Redha ◽  
Kellaci Ahmed ◽  
Karas Abdelkader ◽  
Khelidj Benyoucef
Keyword(s):  
Numerical Analysis ◽  
Computer Program ◽  
Internal Combustion Engine ◽  
Pressure Field ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Mechanical Efficiency ◽  
Piston Motion ◽  
Analytical Treatment ◽  
Secondary Motion

The piston secondary motion significantly influences the tribologicalcharacteristics in an internal combustion engine, such as the piston slapphenomenon and the frictional power loss.An analytical treatment was conducted to investigate piston motion and a computer program was written to predict optimum designs for high mechanical efficiency. This paper focuses on an analysis of the piston dynamic response. By coupling FDM for thehydrodynamic pressure field with the FEM for the piston deformation, wenumerically approximate the lubricantstructure interaction in an internalcombustion engine.

A study of the secondary piston motion arising from changes in the piston skirt profile using a simplified piston skirt model

2012 ◽  
Vol 227 (1) ◽  
pp. 38-47 ◽  
Author(s):  
PD McFadden ◽  
SR Turnbull
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Lubricant Film ◽  
Maximum Diameter ◽  
Cylinder Wall ◽  
Centre Of Mass ◽  
Piston Motion ◽  
Piston Skirt ◽  
Secondary Motion

An existing model of the interface between a parallel-sided piston skirt and the cylinder wall in an internal combustion engine is extended to allow the modelling of barrelling of the piston skirt. The effects of the skirt profile on the secondary motion of the piston and on the distribution of pressure in the lubricant film are examined. It is shown that piston secondary motion, and in particular rotation of the piston about the gudgeon pin, which might contribute to wear of the cylinder, can be reduced by appropriate positioning of the maximum diameter of the piston skirt in relation to the gudgeon pin and the centre of mass of the piston.

scholarly journals A numerical analysis of scavenging efficiency in a two-stroke-cycle internal combustion engine.

1987 ◽  
Vol 53 (485) ◽  
pp. 289-294
Author(s):  
Satoshi KATO ◽  
Takeshi ADACHI ◽  
Harutaka TSUJIMURA ◽  
Yoshinori HlRAYAMA ◽  
Toshimi GOSHOZONO ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Scavenging Efficiency ◽  
Stroke Cycle

scholarly journals The accuracy of modelling of the thermal cycle of a compresion ignition engine

2011 ◽  
Vol 144 (1) ◽  
pp. 37-48
Author(s):  
Karol CUPIAŁ ◽  
Wojciech TUTAK ◽  
Arkadiusz JAMROZIK ◽  
Arkadiusz KOCISZEWSKI
Keyword(s):  
Numerical Analysis ◽  
Internal Combustion Engine ◽  
Thermal Cycle ◽  
Fuel Injection ◽  
Combustion Engine ◽  
Combustion Process ◽  
Three Dimensional ◽  
Internal Combustion ◽  
Power Generator ◽  
Ci Engine

The results of numerical analysis the combustion process in turbocharged CI engine 6CT107 are presented in the paper. Engine was installed on the ANDORIA’s power generator of 100 kVA/80 kW. The results of modelling the combustion process for different angle setting fuel injection, compared with the results obtained by indicating the real engine. Numerical analysis was performed in two programs, designed for three-dimensional modelling of the thermal cycle the piston internal combustion engine, namely AVL FIRE and the KIVA-3V.

Efficiency Improvement of Electric Generating Engine System Based on Internal Combustion Engine: Energy Simulation of New Engine Operation with Electric Generator and Motor

2012 ◽  
Vol 24 (3) ◽  
pp. 487-497 ◽  
Author(s):  
Hiroki Ishikawa ◽  
◽  
Yuta Takeda ◽  
Satoshi Ashizawa ◽  
Takeo Oomichi
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Energy Simulation ◽  
Efficiency Improvement ◽  
Piston Motion ◽  
Engine Operation ◽  
Electric Generator ◽  
Consumption Energy ◽  
Crank Mechanism

An internal combustion engine with a crank mechanism moves with its piston and load mechanism interlocked, and this poses a problem for efficiency improvement. We therefore built a system in which the piston and load mechanism linearly; a generator is used in the combustion stroke and a motor is used in the exhaust, intake, and compression strokes. This system can control piston motion freely, so generation energy and consumption energy in each stroke can be optimized. To check its effectiveness, we developed a simulator in which an engine mechanism and motor/generator is integrated, we performed an energy simulation, and we verified the effectiveness of the method of operation of the proposed system.

Numerical Analysis of an Internal Combustion Engine Using One-Dimensional Computational Models

2015 ◽  
Author(s):  
Fábio de Castro Radicchi ◽  
João Marcos Gomes Vieira ◽  
Leonardo Fonseca ◽  
José Eduardo Mautone Barros ◽  
Ramón Molina Valle
Keyword(s):  
Numerical Analysis ◽  
Internal Combustion Engine ◽  
Computational Models ◽  
Combustion Engine ◽  
Internal Combustion ◽  
One Dimensional

A comparison of methods of modelling the bearing surfaces in an internal combustion engine

2011 ◽  
Vol 226 (4) ◽  
pp. 913-920 ◽  
Author(s):  
P D McFadden ◽  
S R Turnbull
Keyword(s):  
Internal Combustion Engine ◽  
Dynamic Analysis ◽  
Journal Bearing ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Journal Bearings ◽  
Comparison Of Methods ◽  
Piston Motion ◽  
Piston Cylinder

An existing model for the dynamic analysis of the piston motion in an internal combustion engine has been modified to incorporate a simpler representation of the piston–cylinder interaction, and to represent the main and big-end bearings as lubricated rather than dry journal bearings. The results demonstrate that the differences in calculated bearing forces and output torques are negligible, indicating that the simple dry journal bearing model is sufficient, but show that the modelling of the interaction between piston and cylinder is considerably improved.

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