Numerical analysis of the influence of engine speed on the cylinder thermal stresses in supercharged diesel engine

International Automotive Conference 2018

Gustof, P.^1 ; Hadry, D.^1

Silesian University of Technology, Faculty of Transport, Krasinskiego 8 Rd, Katowice

40-019, Poland^1

关键词: Boundary conditions type;    Characteristic surfaces;    Combustion pro-cess;    Experimental test;    Numerical calculation;    Operational conditions;    Rotational speed;    Supercharged diesel engines;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/421/4/042026/pdf
DOI  :  10.1088/1757-899X/421/4/042026

来源: IOP

【 摘 要 】

The paper presents the numerical analysis of the influence of rotational speed of supercharged diesel engine with direct fuel injection to combustion chamber in the initial phase of its working on course of thermal stresses in the cylinder sleeve. Numerical calculations were based on the achieved data concerning the material and physical properties of the material which was used to prepare the cylinder as well as the experimental tests of the engine conducted earlier. The calculations were conducted with the use of original (two-zoned) model of combustion process, boundary conditions type III and finite element method (FEM) with the use of Cosmos/M program. The analysis was conducted on the characteristic surfaces of the cylinder sleeve. The results of the numeric calculations confirm the possibility of application of the assumed modelling method in the combustion process and the earlier made assumptions for the analysis of the values of distributions of the occurring thermal stresses on different surfaces of the cylinder and for different operational conditions of the engine.