Analysis of electromagnetic characteristics of hexapole orbit based on field path coupling

DOI:	10.11809/bqzbgcxb2023.09.026
Keywords:	electromagnetic emission; six pole orbit; pulse forming network; finite element method; magnetic field shielding
Abstract:	In order to investigate the electromagnetic shielding characteristics of the six pole orbital electromagnetic transmitter, the six pole electromagnetic transmitter is designed and its electromagnetic characteristics are studied with respect to the structural characteristics of the four pole electromagnetic transmitter. Using the finite element method, the same pulse forming network is used to power the emitter, and the current, exit velocity and magnetic field shielding effect of the four pole and six pole electromagnetic emitter are simulated and analyzed in comparison. Simulation results show that the propulsive force and exit velocity of the quadrupole electromagnetic emitter are about twice that of the hexapole electromagnetic emitter under the same excitation circuit. The six pole electromagnetic transmitter effectively reduces the concentration of current density at the armature pilot arc and pivot rail contact surfaces, reducing wear and turning. Compared with the four pole electromagnetic emitter, the six pole electromagnetic emitter has a larger magnetic field shielding range and better magnetic field shielding effect, which can provide a better magnetic field environment for the smart throwing body.
Published:	2023-09-28
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