Abstract
In this study, we perform suppression of tremor in archery competition. First, we propose spatial link model of upper body when human draws a bow. This spatial link model includes Hill’s muscle model which considers stiffness, viscosity and muscle contractility of muscle and stiffness of tendon. It is able for us to analyze frequency response of displacement on bow. Second, we perform parameter identification to find muscle and tendon’s stiffness of the spatial link model to compare the vibration peak of tremor by measuring accelerometer. And we show muscle and tendon’s stiffness characteristics as a function of individual max force power in their bow drawing posture. Third, we show design method of the dynamic vibration absorber which suppress the max peak tremor on bow by power spectrum of displacement on bow in theoretical analysis. Finally, we verify suppression effect of tremor of subjects on experiment. And we indicate validity which are analysis of tremor frequency response on bow and design method of dynamic vibration absorber.
