The thermal characteristics investigation of transverse flux tubular linear machine for electromagnetic launcher

This paper investigates the thermal characteristics of the transverse flux tubular linear machine (TFTLM) for electromagnetic launcher (EML), including numerical calculation and temperature rise in the short-time overload test. Firstly, it estimates the various components of heat sources i.e. electromagnetic losses, including core loss in the stator as well as copper loss and eddy-current losses in the mover, and then presents the heat parameters according to the convective heat exchanges. Secondly, it establishes numerical model of the three-dimensional (3-D) for the transient temperature field in TFTLM. The validity of the numerical analysis is proved by the temperature rise in the short-time overload test.