Comparative study of lumped and continuum models of thermal field in SMA actuator

Abstract

The article deals with thermal analysis, modeling and simulation of the Shape Memory Alloy (SMA) actuator. New parametric lumped model of actuator thermal field was developed in Matlab-Simulink program in order to control SMA actuator. The characteristics of the parametric model were compared with the continuous model made in ANSYS FEM program. The goal is to verify lumped model using FEM model in steady-state analysis as well as in dynamic analysis.