Izvorni znanstveni članak
https://doi.org/10.1080/00051144.2024.2318167
Experimental study on the piezo-based energy harvester utilizing the ambient vibrations for smart applications
K. S. Jaibhavani
; Department of Electronics and Instrumentation Engineering, SRM Valliammai Engineering College, Chengalpet, India
*
S. Visalakshi
; Department of Electronics and Instrumentation Engineering, SRM Valliammai Engineering College, Chengalpet, India
* Dopisni autor.
Sažetak
The proposed energy harvester has novel construction, its performance evaluated through frequency response, force response and power harvested under an optimum load, is presented.
This harvester is more suitable for low power applications like IoT devices, Wireless sensor nodes
and biomedical implants. The suggested harvester has two sections namely truncated cone and
rectangular beam section (TCRB). The analytical model is formulated and natural frequencies
are obtained using FEA tool. Simulations for natural frequencies and associated comprehensive parameters are done along with distribution of stress across the piezo patch. The tapered
radius ratio of the truncated cone is analysed to obtain the optimal value. The simulated model
is fabricated and verified experimentally. The result is compared with uniform cantilever beam
harvester. The voltage produced by a TCRB harvester is 56.76 % higher than the harvester with a
homogeneous rectangular cantilever beam. The rectangular harvester has a resonant frequency
of 52.8 Hz, while the TCRB harvester has 39.4 Hz. Also, the TCRB type piezoelectric vibration
energy harvester with optimum taper radius ratio provides greater power, than uniform and
trapezoidal cantilever beams. The obtained experimental results match the simulation results,
ascertains the validity of the proposed harvester.
Ključne riječi
Piezoelectric; tapered cone; vibration; natural frequency; energy harvester
Hrčak ID:
326223
URI
Datum izdavanja:
19.3.2024.
Posjeta: 0 *