Simulation and Analysis of Fuze Link-belt Electromagnetic Induction Setting in Small Caliber Artillery

Small caliber artillery is widely used in the air defense and short-range anti-missile defense,which requires a very short reaction time.The rapidly automatic induction setting of fuze must be achieved using a rapid information crosslinking technology for fire control system and ammunition fuze.Muzzle induction setting and link-belt induction setting are the common setting methods,and the latter is more applicable to rotary tubular artillery.Since the setting magnetic field is anomalous,the theoretical research is very important.The primary coil is winded on the arc setter and the secondary coil is in the fuze,which form an electromagnetic coupled loop;and the fire control information is transformed to the fuze through electromagnetic induction method in time;then the fuze circuit obtains a setting information after decoding analysis to achieve the accurate control of the projectile.A link-belt electromagnetic induction setting analysis model was established by ANSYS,the influence of the body material and the input frequency on coupled loop output was discussed,the quasi-dynamic induction setling process analysis was carried out,which have introductive significance for engineering design.