Efficiency optimization of multi-stage synchronous induction coil launcher based on response surface methodology

Synchronous Induction Coil Launcher (SICL) is a special kind of linear induction motor which has many merits such as modularization design, no contact between the barrel and the armature, and high energy conversion efficiency. Changes of the RLC circuit parameters, structural parameters and trigger time sequences have great influences on performance of SICL. In this paper, systematic differential equation is established and simulation the launching process is compiled considering electromagnetic-thermal-mechanical coupling effect. The 25-stage SICL with same circuit parameters for each stage in given initial condition is analyzed. The response surface methodology (RSM) is used for optimization of SICL design. The artificial immune system (AIS) algorithm is used for optimizing trigger sequence. Higher efficiency is achieved for launching different payload with optimal launcher and trigger sequence.