STATIC CHARACTERISTIC OF ACTUATOR WORKING ON PRINCIPLE OF THERMOELASTICITY

摘要

Electromechanical actuators transforming electromagnetic energy into unidirectional mechanical force play an important role in various industrial processes, control systems, robotics and a lot of other applications. They work on several different principles. In case that we require small shifts of their movable parts, it is possible to make use of thermoelastic displacements of a metal membrane produced by its induction heating. The paper presents a fundamental study of such a device that deals with its construction, operation parameters and optimisation. The mathematical model is solved in weakly coupled formulation. The theoretical analysis is illustrated on a typical example whose results are discussed.