STATISTICAL MODELING OF CHARACTERISTICS OF THE FUEL INJECTION SYSTEM OF SHIP MIDDLE-TURNING DIESEL
Abstract
research, which is due to the formation of economic parameters of diesel engines as a whole.
At the Department of Ship Power Plants of the National University of Odessa Maritime Academy, an experimental study of the process of fuel supply of diesel fuel equipment in transient and partial modes. The experimental study was carried out on a non-motorized test bench equipped with a “strain gauge” hardware-software complex and an electromechanical hardware-software complex for controlling the position of the rail of a high-pressure fuel pump, which made it possible to obtain experimental values of hydrodynamic processes in the fuel equipment of a marine medium-speed diesel engine in dynamic mode.
The object of the study is the hydrodynamic processes in a high-pressure fuel system when operating according to speed and load characteristics. The subject of the study is the relationship of fuel supply parameters with operating and regulatory factors, as well as the analysis of statistical parameters of the obtained regression models
The paper presents the results of modeling the characteristics of the fuel supply system of a marine medium-speed diesel engine in the form of statistical dependences of the main injection indicators on the adjustment and operational parameters, since this form is optimal for compiling analytical models with the presentation of the results in the form of regression dependencies.
The generated regression models reflect the relationship between the parameters of the injection process for the speed and load characteristics of a medium-speed marine diesel engine.
The study showed the statistical significance of the presented models (injection angle, fuel pressure in the fuel pump fitting, pressure in the fuel channel of the nozzle versus the camshaft speed) and their suitability in assessing the speed and load characteristics of a medium-speed marine diesel engine.
