Abstract: In order to realize the acceleration and rotation of the projectile by the coilgun, a new type of drive coil is proposed, and the projectile armature matching with it is designed. For the launching process of the coilgun, the acceleration force of the armature is theoretically analyzed from the point of electromagnetic field. The launching effects under different initial voltage levels are studied through the combination of simulating calculation and launching test verification, and the possible causes of its error are analyzed. The results show that the new electromagnetic coilgun can realize the linear and rotational accelerations of projectile, and the linear and rotation speeds of projectile increase with the increase in the initial voltage level. The exit index of projectile can be adjusted by changing the initial voltage. Key

Key words: coilgun, spinningacceleration, newstructure, drivecoil, projectilearmature, rotatingspeed