Simulation of cooling system performance of super magnetostrictive actuator for high-speed trains

Abstract Given the thermal characteristics of the super magnetostrictive actuator, a cooling system is designed for the heat dissipation characteristics of the super magnetostrictive actuator of high-speed trains. Based on the Ansys finite element analysis platform, the heat generation problem of the super magnetostrictive actuator is introduced and analyzed, the thermal performance parameters of the magnetostrictive material are studied, the Jile-Atherton hysteresis regression model based on the eddy current loss and the additional loss parameter is established, and the total loss of the super magnetostrictive actuator in the active suspension system of the high-speed train is calculated. The cooling water flow field is solved and calculated as a boundary with the help of the finite element analysis method. With the help of finite element analysis, the temperature field of the super magnetostrictive actuator is calculated by solving the cooling water flow field and using it as the boundary. A new water cooling de-heating method is proposed. Through repeated simulations, the experimental data and the calculation results are consistent. The temperature fluctuations during operation are suppressed, which confirms the feasibility of heat dissipation and cooling, reduces the probability of the GMA temperature rise effect, effectively suppresses the harmful effects of the temperature rise effect, and has a good cooling effect on the super magnetostrictive actuator of high-speed trains.