Comparison of position control algorithms of embedded shape memory alloy actuators

Abstract

This paper presents a comparison of the algorithms for control of shape memory alloy (SMA) actuators. An adaptive airfoil is a case of smart composites which utilize embedded SMA actuators. The airfoil is deformed by the SMA actuators which are heated with electric current. The controller adjusts the electric current of the actuators to reach the desired shape of the airfoil.