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 Journal dual resonant structure consists of two spring-mass subsystems with different frequency responses, which exhibit strong coupling and broad bandwidth when the two masses collide with each other.Experiments with piezoelectric elements show that the energy harvesting device with dual resonant structure Wooden Figure can generate higher power output than the sum of the two separate devices from random vibration sources.