Sabokar O. Improvement of the Magnetic Pulse Equipment for the Repair Vehicles Technologies

The thesis is dedicated to the solution of the problem of the technical performance of magnetic-impulse metal processing equipment improving for use in metal-working technologies and vehicle repair technologies. The paper presents the development of an alternative design for the capacitive energy storage charge system and the development of an induction heating system. The numerical heating indicators was given with a variation of the time parameters of the exciting current and the design parameters of the inductor tool. The system model of inductor current excitation in the mode of current resonance was considered and supplemented by experimental studies of the system in voltage resonance mode. The use of a modified time form of the bipolar meander of the excitation signal to reduce the number of spectral components was proposed. The induction heating system designed that operates in the voltage resonance mode has shown its efficiency. It was proposed to perform the excitation of current oscillations by voltage pulses of the modified form with a frequency lower than 20% of the resonant frequency, which ensures acceptable efficiency in the system operation without load. The development of the induction heating system has been tested and implicated at the enterprises of «Veda Auto Service» (Kyiv) and «Elevatormlinmash» (Kharkiv). The results of the thesis are used in the preparation of bachelors and masters degree at the department of automobile electronics of the Kharkiv National Automobile and Highway University