Study of Friction Force in Electrodynamic Rail Accelerator: Experiment and Interpretation Using FEM Modelling
Tomáš Tichý,
Jan Zemen,
Libor Dražan,
František Racek,
Václav Papež,
Ivo Doležel
Affiliations
Tomáš Tichý
Department of Electrotechnology, Czech Technical University, Technická 2, 166 27 Praha, Czech Republic
Jan Zemen
Department of Electrotechnology, Czech Technical University, Technická 2, 166 27 Praha, Czech Republic
Libor Dražan
Department of Communication Technologies, Electronic Warfare and Radiolocation, University of Defense in Brno, Kounicova 65, 602 00 Brno, Czech Republic
František Racek
Department of Weapons and Ammunition, University of Defense in Brno, Kounicova 65, 602 00 Brno, Czech Republic
Václav Papež
Department of Electrotechnology, Czech Technical University, Technická 2, 166 27 Praha, Czech Republic
Ivo Doležel
Department of Electrical Power Engineering, Czech Technical University, Technická 2, 166 27 Praha, Czech Republic
The paper presents experimental data and a model of an electromagnetic rail accelerator. The model includes an equivalent circuit, magnetic field in the system and movement of the projectile (that is solved separately) which is computed numerically. The main results are compared with our experimental data and friction force during acceleration is evaluated.
