G1500302 Stabilization of Semi-Active Load Control Mechanism to Smart Suit for Muscle Training

Abstract

Astronauts are using huge special machines in order to maintain physical function under the zero-gravity. This research aims to develop the wearable training device to do muscle training under the zero-gravity instead of them. First, we designed motor-unit system and its sensing device to control. Next, we developed Semi-Active Load Control Mechanism to use a PD feedback control method with this device at a constant force. We made an experiment to evaluate the control method, that the force point was moved by hand at a constant speed. But the output force had an unstable vibration component because of discontinuous law and human control. So we designed FIR digital filter and new control method to reduce unstable vibration. By using these methods, we showed the effectiveness through the evaluation experiment.