A new active anti-vibration system using a magnetostrictive bimetal actuator

This paper introduces a new vibration reduction system using magnetostrictive (Fe-Ga alloy) bimetal actuator. The proposed method (i) uses actuator instead of prevalent single material ones that need an auxiliary temperature control and (ii) utilises novel disturbance rejection scheme eliminates unknown disturbance, without needing knowledge its dynamics. In experiments, the source is demonstrated as unbalanced motor attached to tip cantilever beam, resembling beam-like element subject ambiance vibrations. first step, fundamental this anti-vibration introduced described. Then, analytical data-driven modelling for combination motor, reported. These follow by model validation impulse response analysis. in detail. Experimental results indicate 33.6% decrease beam amplitude. Furthermore, presented can be employed design guideline future applications.