Dual resonant structure for energy harvesting from random vibration sources at low frequency

Dual resonant structure for energy harvesting from random vibration sources at low frequency

Blog Article

We introduce a design with dual resonant structure which can harvest energy from random vibration sources at low frequency range.The dual resonant structure consists of two spring-mass Air Freshener subsystems with different frequency responses, which exhibit strong coupling and broad bandwidth when the two masses collide with each other.Experiments with piezoelectric elements Incense show that the energy harvesting device with dual resonant structure can generate higher power output than the sum of the two separate devices from random vibration sources.