Operator based nonlinear forced vibration control for a flexible arm using SMA actuator

Abstract

A flexible arm has light weight in order to improve the work efficiency and reduce costs. Therefore the damping effect decreases, and the flexible arm vibrates easily. On the other hand, smart materials have many advantages as actuators, and researches on smart materials are actively conducted. This paper introduces model of the flexible arm and a Shape memory alloy (SMA) actuator which is one of the smart material, and proposes a vibration control system based on operator theory for the flexible arm using the SMA actuator with hysteresis. In order to verify the effectiveness of the proposed system, simulation results are shown.