TY - GEN
T1 - A Two-Body Low-Frequency Piezoelectric Wind Energy Harvester for Environmental Sensing
AU - Bakhtiar, Sadia
AU - Hajjaj, Amal Z.
AU - Fu, Hailing
AU - Theodossiades, Stephanos
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.
PY - 2025
Y1 - 2025
N2 - This paper investigates a novel Two-body Piezoelectric Wind Energy Harvester (TbPE-WEH) designed to generate voltage from wind-induced vibrations. The harvester consists of a flat plate (bluff body) attached to the free end of a piezoelectric cantilever beam. A description of the energy harvester and experimental setup is provided, explaining the output voltage generation for a range of wind speeds. The study investigates the system dynamics using experimental modal analysis, which reveals the natural frequencies of the system. The activation of system nonlinearities causes a noticeable shift in the frequency content as the wind speed varies. At high wind speeds, the harvester appears to propel into limit cycle oscillations (LCOs), exhibiting self-sustained motion caused by aerodynamic instabilities. This novel two-degree-of-freedom vibration energy harvester design may harness wind energy over a wide speed range by gaining large oscillations as compared to the vibration energy harvesters operating under aerodynamic instabilities that are presented in the literature. A maximum open circuit voltage of approximately 6–7 V is achieved by this non-optimised energy harvester prototype.
AB - This paper investigates a novel Two-body Piezoelectric Wind Energy Harvester (TbPE-WEH) designed to generate voltage from wind-induced vibrations. The harvester consists of a flat plate (bluff body) attached to the free end of a piezoelectric cantilever beam. A description of the energy harvester and experimental setup is provided, explaining the output voltage generation for a range of wind speeds. The study investigates the system dynamics using experimental modal analysis, which reveals the natural frequencies of the system. The activation of system nonlinearities causes a noticeable shift in the frequency content as the wind speed varies. At high wind speeds, the harvester appears to propel into limit cycle oscillations (LCOs), exhibiting self-sustained motion caused by aerodynamic instabilities. This novel two-degree-of-freedom vibration energy harvester design may harness wind energy over a wide speed range by gaining large oscillations as compared to the vibration energy harvesters operating under aerodynamic instabilities that are presented in the literature. A maximum open circuit voltage of approximately 6–7 V is achieved by this non-optimised energy harvester prototype.
KW - Aerodynamic force
KW - Nonlinear response
KW - Piezoelectric wind energy harvester
KW - Self-sustained oscillations
UR - http://www.scopus.com/inward/record.url?scp=85218489560&partnerID=8YFLogxK
U2 - 10.1007/978-981-97-4780-1_22
DO - 10.1007/978-981-97-4780-1_22
M3 - Conference contribution
AN - SCOPUS:85218489560
SN - 9789819747795
T3 - Lecture Notes in Electrical Engineering
SP - 291
EP - 299
BT - Proceedings of IEMTRONICS 2024 - International IoT, Electronics and Mechatronics Conference
A2 - Bradford, Phillip G.
A2 - Gadsden, S. Andrew
A2 - Koul, Shiban K.
A2 - Ghatak, Kamakhya Prasad
PB - Springer Science and Business Media Deutschland GmbH
T2 - International IoT, Electronics and Mechatronics Conference, IEMTRONICS 2024
Y2 - 3 April 2024 through 5 April 2024
ER -