Dynamical characteristics of a bistable piezoelectric energy harvester with magnetic flux-controlled memristors
摘要
In this paper, we propose a bistable piezoelectric vibration energy harvesting system integrated with a magnetic flux-controlled memristor (MFCM), and develop its corresponding theoretical dynamical model. The dynamical characteristics of the model are investigated, and several performance metrics including signal-to-noise ratio, instantaneous output voltage, average output voltage, and energy harvesting efficiency, are evaluated via numerical simulations. The results indicate that under moderate ambient noise conditions, the system can achieve relatively high firing frequency and energy harvesting efficiency. Adding the MFCM appears to improve the output power and the energy harvesting efficiency to some extent. Specifically, the memristor parameter