The friction analysis of main bearing on an internal combustion engine based on multi-body dynamics and elasto-hydrodynamic

2011 ◽  
Author(s):  
Deng Banglin ◽  
Yang Jing ◽  
Fu Jianqin ◽  
Chen Shanping ◽  
Wang Shuqing
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Main Bearing ◽  
Body Dynamics ◽  
Multi Body ◽  
Friction Analysis

Probabilistic Main Bearing Performance for an Internal Combustion Engine

2005 ◽  
Vol 127 (4) ◽  
pp. 784 ◽  
Author(s):  
Zissimos P. Mourelatos ◽  
Nickolas Vlahopoulos ◽  
Omidreza Ebrat ◽  
Jinghong Liang ◽  
Jin Wang
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Main Bearing

scholarly journals Rigid body dynamics and simulation of a three-cylinder, four-stroke internal combustion engine coupled with an aircraft propeller

2021 ◽  
Author(s):  
Scott A Warwick
Keyword(s):  
Steady State ◽  
Rigid Body ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Practical Interest ◽  
Internal Combustion ◽  
Rigid Body Dynamics ◽  
Propeller Shaft ◽  
Dynamical Behaviors ◽  
Body Dynamics

Dynamical behaviors of a system consisting of a Saito-450 3-cylinder, 4-stroke engine and a variable pitch propeller are studied. The kinemtical equations for the planar 8-bar internal combustion engine are established using a complex number method. The nonlinear dynamical equation for the engine-propeller system is obtained using the Lagrange equation and solved numerically using a computer code written in the Matlab language. Various simulations were performed to study the transient and steady state dynamical behaviors of the sophisticated multiple rigid body system while taking into account the engine pressure pulsations and aerodynamic load. The steady-state motions of the propeller shaft for different engine powers and speeds were obtained and decomposed using the Fast Fourier Technique (FFT). Results presented in this thesis provide necessary input for studies of flexible body dynamics where the torsional vibration of the propeller shaft is of practical interest to design engineers in the aerospace industry.

Research on the Effect of Whole Cylinder Block on EHL Performance of Main Bearings Considering Crankshaft Deformation for Internal Combustion Engine

2010 ◽  
Vol 132 (4) ◽  
Author(s):  
Jun Sun ◽  
Xiaoxia Cai ◽  
Liping Liu
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Frictional Coefficient ◽  
Elastohydrodynamic Lubrication ◽  
Internal Combustion ◽  
Cylinder Block ◽  
Bearing Surface ◽  
Main Bearing ◽  
Compliance Matrix ◽  
Working Cycle

In this paper, the analyses of elastohydrodynamic lubrication (EHL) of crankshaft bearings considering the deformation of the whole cylinder block and crankshaft under load were carried out for the crankshaft bearing system of a four-stroke four-cylinder internal combustion engine. The lubrication of crankshaft bearing was analyzed by dynamic method. The deformation of bearing surface under pressure of oil film was calculated by compliance matrix method. The results show that when the crankshaft deformation under load is considered, compared with the results of not considering the deformation of cylinder block, the maximum film pressure decreases, the minimum film thickness increases, and the end leakage flow-rate and frictional coefficient of journal surface change little in an engine working cycle when considering the deformation of cylinder block. The models of the whole cylinder block and the single main bearing housing were used, respectively, to calculate the deformation of main bearing surface in the analyses. The results show that the calculation accuracy of the elastohydrodynamic lubrication analyses of crankshaft main bearings can be met basically by applying the simple model based on the single main bearing housing to calculate the elastic deformation of main bearing surface.

scholarly journals Lubrication Analysis of Main Bearing for Internal Combustion Engine Considering Axial Movement of Crankshaft

2019 ◽  
Vol 55 (17) ◽  
pp. 94
Author(s):  
LI Biao ◽  
SUN Jun ◽  
ZHU Shaoyu ◽  
LIU Guangsheng ◽  
MIAO Enming ◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Main Bearing ◽  
Axial Movement

Study on Dynamic Response of Joints Accuracy to the Slider Crank Mechanism of Internal Combustion Engine

2014 ◽  
Vol 651-653 ◽  
pp. 875-879
Author(s):  
Fa Jun Zhang ◽  
Xin Zhu ◽  
Shan Shan Wang ◽  
Yin Lin Pu ◽  
Lin Zi Li ◽  
...  
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Friction Model ◽  
Positional Accuracy ◽  
Dynamic Disturbance ◽  
Engine Dynamic ◽  
Coulomb Friction Model ◽  
Multi Body ◽  
Simulated Analysis

Nonlinear equivalent spring resistance model and Coulomb friction model is used to construct a dynamic mathematical model for a multi-body system, which contains clearance. In the paper an internal combustion engine dynamic model has created for simulated analysis. It shows that joints accuracy and driver speed have obvious effects on crank slider dynamic disturbance. Also joints clearance and the increase of driver speed lead to lower positional accuracy, worse stability and reliability, which has very important theoretical significance and practical value on the analysis of the performance of internal combustion engine.

scholarly journals Rigid body dynamics and simulation of a three-cylinder, four-stroke internal combustion engine coupled with an aircraft propeller

2021 ◽  
Author(s):  
Scott A Warwick
Keyword(s):  
Steady State ◽  
Rigid Body ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Practical Interest ◽  
Internal Combustion ◽  
Rigid Body Dynamics ◽  
Propeller Shaft ◽  
Dynamical Behaviors ◽  
Body Dynamics

Dynamical behaviors of a system consisting of a Saito-450 3-cylinder, 4-stroke engine and a variable pitch propeller are studied. The kinemtical equations for the planar 8-bar internal combustion engine are established using a complex number method. The nonlinear dynamical equation for the engine-propeller system is obtained using the Lagrange equation and solved numerically using a computer code written in the Matlab language. Various simulations were performed to study the transient and steady state dynamical behaviors of the sophisticated multiple rigid body system while taking into account the engine pressure pulsations and aerodynamic load. The steady-state motions of the propeller shaft for different engine powers and speeds were obtained and decomposed using the Fast Fourier Technique (FFT). Results presented in this thesis provide necessary input for studies of flexible body dynamics where the torsional vibration of the propeller shaft is of practical interest to design engineers in the aerospace industry.

Sign in / Sign up

Export Citation Format

Share Document