Optimization of a Non-Traditional Vibration Absorber for Vibration Suppression and Energy Harvesting

This paper investigates the optimization of a non-traditional vibration absorber for simultaneous suppression and energy harvesting. Unlike traditional absorber, has its damper connected between mass base. An electromagnetic harvester is used as tunable damper. attached to primary system that subjected random base excitation. analytical study conducted by assuming excitation white noise. In terms suppression, objective minimize power dissipated maximize It found when undamped, remains constant related ratio. The higher ratio, dissipated. When damped, minimization damping equivalent maximization existence optimum solutions depends on both ratio harvesting, harvested load resistor. given frequency tuning required slightly than power. trade-off issue harvesting investigated. apparatus developed allow tuning. Both numerical simulation experimental with band-limited noise validate general trends revealed in study.