Finite Element Analysis of the Cylinder Liner of a 280 Diesel Engine

The Cylinder liner is one of the key components of diesel engine. Combustion chamber set is constituted by Piston, Cylinder head, Cylinder liner and other parts. Its structure and working environment is complex. Received the gas pressure, friction force from high-speed reciprocating motion of the piston and lateral force of the piston, it results in mechanical stress and mechanical deformation. High temperature combustion and high pressure gas make the piston temperature distribution uneven, which results in piston thermal stress and thermal deformation. Therefore, the element analysis of Cylinder liner in the heat load and mechanical load is significant, the finite element analysis shows the deformation and the stress distribution of the Cylinder liner. It is meaningful for improving Cylinder liner design and reliability. The cylinder liner of diesel engine is a place of gas compression, combustion and expansion, and also a guiding role for the Pistons. The maximum temperature in the combustion process of diesel gas is about 2500 degrees C [1]. Directly affected by the high temperature and high pressure gas and surrounded by cooling water on the outside, the cylinder liner will generate considerable heat stress and thermal deformation. The cylinder liner is a thin-walled cylindrical part, Thermal stress and thermal deformation should be controlled within a certain range, Otherwise, the normal deformation of the cylinder liner will destroy the normal gap between the piston and cylinder, resulting in the deterioration of the working process, so it is necessary to finite element analysis of the cylinder liner.