Acceleration of conductors in the pulsed magnetic field of a massive cylindrical multiturn inductor

Non-US electrodynamic launchers research and development

“…Interest in cylindrical projectiles was first evidenced in two papers by Bondaletov et al (1983) and Ber et al (1984). The first uses a lumped parameter analysis of the system to reach some important conclusions:…”

“…A theoretical investigation of multi-stage accelerators by Vasil'yev and Petrov (1989) began with the set of integro-differential equations developed earlier (Ber et al, 1984), but instead of using a finite difference scheme for the solution, employs the mesh-matrix approach5 and a Runge-Kutta iteration scheme. The researchers also mention experiments performed with an 80-stage coilgun.…”

“…In fact, more recent papers deal exclusively with this type, as will be discussed in the next section. Ber et al (1984) deal with a massive cylindrical projectile and take into account the penetration of the field into the inductor and into the projectile. The analysis, which is based on the magnetic vector potential, makes use of a finite difference scheme.…”