Pavlenko O. Improvement of equipment and technology for pulsed briquetting of metalworking waste

The thesis is aimed at creation of a methodic for the automated calculation of equipment parameters for pulsed briquetting of chips of aluminum and titanium alloys with stabilization of briquette quality under changing environmental conditions. Theoretical research is based on mathematical modeling methods using state-of-the-art certified CAD / CAE engineering finite element analysis software. The method for determining of briquetting forces depending on the properties of material of chips to be processed is improved. In contrast to existing approaches, where in empirical formulas experimental coefficients used, a formula for calculating a pulse briquetting machine energy, where hardness of the chips is a determining parameter is proposed. A complex of mathematical models for calculating of kinematic and dynamic parameters of pulsed briquetting machines with a gas-air drive, based on the theory of thermodynamic systems of a body of variable mass is proposed. The mixture formation model, in which, unlike the existing ones, the change in the temperature of the walls of the combustion chamber during heating is taken into account has been improved. It allows to stabilize the charge energy at a known temperature and a given work cycle The structure of an adaptive automatic control system for a pulsed briquetting machine, use of which will ensure the production of briquettes of stable quality regardless of the influence of ambient temperatures is proposed