Anti-shock analysis of the electromagnetic launched projectile powered by the pulsed alternator

The pulsed alternator is a promisingly compact power supply system suitable for electromagnetic launch. As for a two-phase pulsed alternator, the drive current changes wildly in a short time. Electronic equipments in the electromagnetic launched projectile are the key factors of information, automation and intelligence of armed devices. In order to protect the electronic devices, the analysis of anti-shock analysis of the electromagnetic launched projectile is necessary. In this paper, the mathematical model of the two-phase pulsed alternator was established. According to the model, the waveform of the drive current was got. Through reasonable simplification, the finite element model including printed circuit and other components were created using the finite element analysis software ANSYS/LS-DYNA. Based on the analysis of the simulation results, the antishock performance of the electronic devices in the electromagnetic launched projectile is improved by using filler. Through the analysis of this paper, we had a clearer understanding of the dynamic characteristics of electronic equipments in the electromagnetic launched projectile.