The bursting phenomenon for a parametric excited energy harvesting system

Parametric resonance can induce an instability at half the excitation frequency, which has been comprehensively utilized in energy harvesting. However, the vibration energy harvesting with parametric excitation frequency far away from the natural frequency has received less report. To implement this issue, this paper considers a novel bursting energy harvesting under parametric excitation, the harvester is realized by employing a parametrically excited buckled beam, and the bursting phenomenon of the system is discussed. Based on the method of fast-slow dynamics analysis, the behaviors of bursting response under monostable and bistable configurations are presented, the multiple-frequency oscillation is devoted to observing the complex bursting patterns, and then the jump multi-value phenomena are evaluated. Furthermore, the bursting harvesting performances of the monostable and the bistable configurations are compared, and it is found that the bistable configuration generates more average voltage in a period, so the bistable configuration is much superior to the monostable case. (author)