Abstract
Aiming at the air damping of the electromechanical converter under the conditions of high frequency and high speed, a computational fluid dynamics analysis of air damping is proposed for three different thrust coil frameworks based on a dynamic mesh technology. Simulation results show that with the increase of the moving frequency and speed, the air damping effect of the thrust coil framework becomes more significant. Punching holes on the end face of the thrust coil framework could greatly improve the air flow characteristics and the distribution of the pressure and velocity. Compared with proposal one, the air damping of proposal two is decreased by 81%, and proposal three is decreased by 98%. It can be seen that the air damping can be reduced by the structural optimization of electromechanical converter at the high speed working conditions.
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