Dual-source energy harvester for collecting both flow-induced and multi-directional vibratory energies

Chen, Jiatong1,3; Liu, Jinlong3; Bao, Bin2,3

2024-09-01

10.1007/s11071-024-10392-6

NONLINEAR DYNAMICS   影响因子和分区

0924-090X

1573-269X

Inherent ambient energy sources manifest in diverse forms, including wind and vibrations. Currently, significant attention has been directed toward enhancing energy conversion efficiency from individual sources. However, there has been limited exploration of multi-source energy harvesting systems in recent studies. This research proposes a novel dual-source vibration energy harvester (DVEH) that employs a spherical pendulum to capture both flow-induced and multi-directional vibration energies. The proposed structure integrates a specialized bluff body with a square section attached to the end of a piezoelectric beam. Within the bluff body, a spherical pendulum exploits nonlinear coupling between the beam's bending vibration and pendulum motion. Additionally, the bluff body captures wind energy through the galloping effect. To assess the energy harvesting performance, we formulate a theoretical model. Experimental validation is conducted to corroborate our theoretical findings. The maximum output power attains 0.55 mW at a wind speed of 5 m/s. Furthermore, for multi-directional vibration energy harvesting, the output root mean square (RMS) piezoelectric voltage attains 1.28 V, 3.13 V, and 2.67 V (The corresponding directions are along the beam length direction, along the beam vibration direction and along the beam width direction), respectively. In summary, the outcomes reveal commendable dual-source vibration energy harvesting capabilities in the proposed structure.

Multi-source energy harvesting Galloping Multi-directional Piezoelectric Pendulum

SCI

英语

通讯

Shenzhen Science and Technology Program[JCYJ20220530112815036] ; Special innovation project of ordinary universities in Guangdong Province[2022KTSCX112] ; National Natural Science Foundation of China[52005242]

Engineering ; Mechanics

Engineering, Mechanical ; Mechanics

WOS:001321720500004

SPRINGER

Web of Science

1.Harbin Inst Technol, Sch Astronaut, Harbin 150001, Peoples R China
2.Harbin Inst Technol, Sch Mech Engn & Automat, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China

Chen, Jiatong,Liu, Jinlong,Bao, Bin. Dual-source energy harvester for collecting both flow-induced and multi-directional vibratory energies[J]. NONLINEAR DYNAMICS,2024.

Chen, Jiatong,Liu, Jinlong,&Bao, Bin.(2024).Dual-source energy harvester for collecting both flow-induced and multi-directional vibratory energies.NONLINEAR DYNAMICS.

Chen, Jiatong,et al."Dual-source energy harvester for collecting both flow-induced and multi-directional vibratory energies".NONLINEAR DYNAMICS (2024).