Influence of design parameters on electro-magnetic repulsion mechanism performance

Abstract

The objective of this paper is to quantitatively determine the influence of six design parameters on three performance parameters of electromagnetic repulsion mechanism. Six design parameters include mass of moving part, radius of repulsion plate, thickness of the repulsion plate, pre-charged capacitance, initial charging voltage of pre-charged capacitance, and driving coil turns. Three performance parameters include average opening speed, maximum speed and maximum electro-magnetic force on the repulsion plate. Simulation results reveal following conclusions. With the increase of moving part mass, average speed and maximum speed decrease linearly as equation (1, 2). Average speed and maximum speed are in direct proportion with the increase of plate's thickness, initial voltage, driving coil turns and value of pre-charged capacitance as equation (4, 5, 10, 11, 13, 14, 16, and 17). The maximum force increases almost linearly with the increases of the width of plate, the initial charging voltage, riving coil turns and capacitance shown in equation (3, 9, 12, and 15). When radius of repulsion plate is smaller than radius of split coil, three design parameters increase linearly with the increase of radius of repulsion plate shown in equation (6, 7, 8). When radius of plate is bigger, three design parameters is almost same.