Synthesis of Control System for Actuators Based on Shape Memory Ferromagnetic Alloy using Inverse Problem Solution

A control system of actuators based on ferromagnetic shape memory alloy is considered. The distinctive feature of the devices is the usage of the distributed magnetizing system and the pulse mode of magnetic reversal. A definition algorithm of ampere-winding of magnetizing system coils with application of the methodology based on the inverse problem solution is developed. A mathematical model of the actuator considering influence of eddy currents and losses of energy on a hysteresis on dynamic processes in active elements is developed. The results of experimental studies are given. The values of ampere-winding in coils and delay time of a magnetic field in pulse control mode of the actuator with active elements from Ni2MnGa alloy are defined. The offered approaches allow raising the efficiency of the control system of actuators based on ferromagnetic shape memory alloy.