Simple On-site Resonance Frequency Adjustment Mechanism of Vibrational Power Generator and its Evaluation Under Real Vibration

Abstract

The maximum power generation efficiency of the vibrational generator is obtained by matching the resonance frequency with the vibration frequency. Therefore, techniques for adjusting the resonant frequency of the generator are important. At present, adjustment is carried out by changing the mass of the tip of the generator, but this work is complicated and not practical. And, there is a problem that it is difficult to change the resonance continuously in the vibration in addition to the difficulty of the accurate adjustment. One of the solutions to this problem is to change the resonance by bending the tin plate attached to the tip of the generator. In this paper, the adjustment mechanism was changed to improve the power generation characteristics and the accuracy of fine adjustment. And, by using this adjustment mechanism, adjustment of resonance frequency under cutting vibration of actual machine tool was carried out, to evaluate power generation characteristics of the generator.