An Experimental Study of Stochastic Resonance Performance of Horizontal Large-Scale Bistable Model

抄録

The conventional researches on energy harvesting based on stochastic resonance use bistable vibration systems, Normally, the energy harvesting efficiency will be improved when vibrational amplitude increases. However, most conventional researches are use cantilever which is small-scale and difficult to apply into practice use. Therefore, how to develop a compact large-scale device becomes a key problem for vibrational energy harvesting. This study firstly proposes a horizontal large-scale bistable model to increase vibrational amplitude to improve robust performance of disturbance force, relative to conventional bistable vibration systems. Furthermore, an experimental device is fabricated to realize stochastic resonance phenomenon, and its bistable vibration performance is carefully investigated with the excitation of random and periodic signals. At last, we use standard deviation to evaluate increase rate of this horizontal large-scale bistable model.