Optimization of key parameters of electromagnetic coil launching based on uniform design experimentation

An electromagnetic coil launcher's muzzle velocity and launch efficiency are determined by critical system characteristics like circuit and structural design. To obtain higher muzzle velocity and launch efficiency, this article establishes an electromagnetic coil vertical launch model according to the circuit principle and dynamics principle and uses the finite element simulation software Ansoft Maxwell for dynamic simulation of the proposed model. Several experiments are conducted using the uniform experimental design method to examine the influence of key parameters, such as the trigger positions of the five-stage coil launcher system, on the launch efficiency. The simulated annealing algorithm is used to propose a method of optimizing the trigger sites and produce the ideal trigger sequence after the simulation results are assessed using the stepwise regression approach. Finally, the simulation is carried out based on the trigger positions obtained by the simulated annealing, and the launch efficiency of 56.27% is achieved. This result verifies the effectiveness of the proposed optimization method and provides a valuable reference for the optimization of high-mass launch technology in the future.