Structural Design and Thermal-mechanical Coupling Analysis of a Novel Automobile Magnetostrictive Actuator

Abstract

Abstract This paper takes automobile disc brakes as the research object, and designs a novel magnetostrictive disc actuator based on the characteristics of large output force, high displacement resolution and fast response speed of giant magnetostrictive material. Based on the vehicle parameters of a new energy vehicle as the design basis, calculate the specific structure and size of the magnetostrictive actuator, and use CATIA software to complete the system parametric modeling, import the built model into COMSOL Multipysics. The simulation results show that the output displacement and output force of the actuator can meet the requirements of braking, and the maximum temperature of the surface of the friction pair is far from the temperature limit of the brake, the rationality of the design and the correctness of the simulation model are verified.