Optimal Design of Magnetic Shielding Device Based on Seeker Optimization Algorithm

The magnetic shielding device has important application value in the fields of geomagnetic navigation, space engineering, space science, national defense industry, microparticle experiment and so on. The optimization of its structure parameters has important theoretical value, economic value and engineering value. In order to optimize the structure parameters, a parameter optimization method of magnetic shielding device based on seeker optimization algorithm is proposed. First, the analytical expression of the calculation of magnetic shielding performance is summarized. Then, because of more optimization variables leading to optimization falling into local optimum, the seeker optimization algorithm (SOA) is used to achieve global optimization. Finally, taking the optimization of structure parameters of the three layer magnetic shielding device as an example, a comparative simulation experiment is carried out. The simulation results show that the seeker optimization algorithm has faster convergence speed, higher precision, and is more easy to find the global optimal solution than the traditional optimization method (genetic algorithm and particle swarm optimization). The method can provide a reference for the structure parameters optimization of the magnetic shielding devices.