An analysis model of coupling engine block dynamics behavior to lubrication in cylinder piston system in internal combustion engine was established, and the numerical simulation of the model was processed through linking ANSYS software to FORTRAN code for lubrication.

The coupling problem between the dynamic behaviors and the tribological behaviors of the piston-liner systems in multi-cylinder internal combustion engines was studied.

Based on the correction of some errors in the equation of piston secondary motion,which have been employed by many authors for several years,a detailed mathematical model for the coupling problem between the dynamical and tribological behaviors in the piston-liner systems of multi-cylinder internal combustion engine was presented.

In the model,the inertial force of the connecting-rod was involved in the calculation of the piston secondary motion for the first time,the primary dynamical factors that have impacts on the tribological behaviors in the piston-liner systems were discussed throughly.

and the effects of the coupling process on the forces such as the piston thrust force,the connecting-rod force and the main bearing force were studied, and the traditional mathematical model of them were revised accordingly

A model was established to analyze the coupling effect between the dynamic behavior and lubricating behavior of a cylinderpiston system in an internalcombustion engine. Software ANSYS and FORTRAN program were combined to carry out the numerical simulation of the model. Thus the finite element method model of the cylinder was established and its transient dynamic response computed with the ANSYS software. The lubrication of the cylinderpiston pair was simulated with an average Reynolds equation considering...

A model was established to analyze the coupling effect between the dynamic behavior and lubricating behavior of a cylinderpiston system in an internalcombustion engine. Software ANSYS and FORTRAN program were combined to carry out the numerical simulation of the model. Thus the finite element method model of the cylinder was established and its transient dynamic response computed with the ANSYS software. The lubrication of the cylinderpiston pair was simulated with an average Reynolds equation considering the secondvibration of the piston. The timedependent minimum film thickness, friction force, and friction power loss were calculated making use of sequential fieldcoupling analysis. It was found that the coupling action between the lubricating behavior and dynamic behavior of the cylinderpiston system had significant effects on the lubricating characteristics as compared with the analytical results excluding the vibration of the cylinder. Namely, in consideration of the cylinder vibration, the cylinderpiston system registered larger friction force, friction power loss, and oil film thickness variation.

An analysis model of coupling engine block dynamics behavior to lubrication in cylinder piston system in internal combustion engine was established, and the numerical simulation of the model was processed through linking ANSYS software to FORTRAN code for lubrication. The finite element model of an engine block was built, and its transient dynamics response was computed with ANSYS. The lubrication of cylinder piston pair was simulated with an average Reynolds equation considering the second vibration of...

An analysis model of coupling engine block dynamics behavior to lubrication in cylinder piston system in internal combustion engine was established, and the numerical simulation of the model was processed through linking ANSYS software to FORTRAN code for lubrication. The finite element model of an engine block was built, and its transient dynamics response was computed with ANSYS. The lubrication of cylinder piston pair was simulated with an average Reynolds equation considering the second vibration of the piston and the asperity contact of rough surface. The trajectory of piston secondary motion,the minimum oil film thickness, the friction force and the friction power loss etc. vs. time were presented. Comparing with the results of the analysis without considering vibration of cylinder, it is evident that the coupling of tribological behavior and dynamics behavior in cylinder piston system is very strong. For the vibration of the cylinder, friction force and the friction power loss of the cylinder piston system become less, the minimum oil film thickness, the displacement and the velocity of piston secondary motion become larger.

The coupling problem between the dynamic behaviors and the tribological behaviors of the piston-liner systems in multi-cylinder internal combustion engines was studied.Based on the correction of some errors in the equation of piston secondary motion,which have been employed by many authors for several years,a detailed mathematical model for the coupling problem between the dynamical and tribological behaviors in the piston-liner systems of multi-cylinder internal combustion engine was presented.In the model,the...

The coupling problem between the dynamic behaviors and the tribological behaviors of the piston-liner systems in multi-cylinder internal combustion engines was studied.Based on the correction of some errors in the equation of piston secondary motion,which have been employed by many authors for several years,a detailed mathematical model for the coupling problem between the dynamical and tribological behaviors in the piston-liner systems of multi-cylinder internal combustion engine was presented.In the model,the inertial force of the connecting-rod was involved in the calculation of the piston secondary motion for the first time,the primary dynamical factors that have impacts on the tribological behaviors in the piston-liner systems were discussed throughly.and the effects of the coupling process on the forces such as the piston thrust force,the connecting-rod force and the main bearing force were studied, and the traditional mathematical model of them were revised accordingly