Design of Multistage Linear Induction Motor used as electromagnetic catapult

In this paper the authors describe an analytical procedure for preliminary design of Multistage Linear Induction Motor (MLIM) operating as heavy mass electromagnetic catapult. Through the use of the sheet current method we derive the thermal, mechanical and electrical modeling. The implemented methodology enables to individuate and optimize the main parameters of the system and in particular the number of barrel sections. The main steps of the procedure are clearly explained and discussed throughout the paper. Finally, we show the main quantities of interest calculated for a designed prototype.