Mechanical and Thermo Mechanical Analysis of the Damage Parameter on a Simplified Cylinder Head of a Variable Compression Rate Engine

Abstract

This work is a contribution to the mechanical and thermomechanical analysis of the damage parameter of a compression ratio engine through the study of the cylinder head. The numerical method through COMSOL multiphysics, MATLAB SIMULINK software and the analytical method through the Love-Kirchhoff theory of thermal conduction were the only methods used. From the Navier method, the Lagrange equation was solved in order to obtain the mechanical deformation, the method of separation of the variables allowing to solve the Laplace equation made it possible to obtain the thermal conduction field of the cylinder head. This led to the characterization of the VON MISES stress and the damage parameter. In addition, the various simulations also made it possible to provide information on the said constraint and the said parameter. The outcome of these analyzes showed that the damage parameter is a worrying factor given its value, although the energy efficiency of the engine with variable compression ratio is significant according to numerous studies on the subject. Knowledge of this parameter and its mastery will make it possible to better understand all the conceptual and technological phases of this engine, the latter which will bring more efficiency in terms of energy, mechanics and thermomechanics. The outcome of these analyzes showed that the damage parameter is a worrying factor given its value, although the energy efficiency of the engine with variable compression ratio is significant according to numerous studies on the subject. Knowledge of this parameter and its mastery will make it possible to better understand all the conceptual and technological phases of this engine, the latter which will bring more efficiency in terms of energy, mechanics and thermomechanics. The outcome of these analyzes showed that the damage parameter is a worrying factor given its value, although the energy efficiency of the engine with variable compression ratio is significant according to numerous studies on the subject. Knowledge of this parameter and its mastery will make it possible to better understand all the conceptual and technological phases of this engine, the latter which will bring more efficiency in terms of energy, mechanics and thermomechanics.