High-performance coupled wind-induced vibration energy harvesting mechanism and optimization "HPCWIVEHMO"

SHENG 2

Funding Organization: National Science Centre

Leader: Lublin University of Technology

Partner: Silesian University of Technology

Project title: High-performance coupled wind-induced vibration energy harvesting mechanism and optimization "HPCWIVEHMO"

Agreement number: UMO-2021/40/Q/ST8/00362

Project implementation period: 18.01.2022 - 17.04.2025

Principal Investigator: prof. dr hab. Grzegorz Andrzej Litak

Principal Co-investigator (Silesian University of Technology): dr hab. inż. Jerzy Margielewicz

Project value: 1 947 364,00 PLN

Funds granted for Lublin University of Technology: 1 473 394,00 PLN

Funds granted for (Silesian University of Technology): 473 970,00 PLN

Abstract: Carried out in the discipline of mechanical engineering will focus on wind-induced vibration energy harvesting. We will study coupled nonlinear resonators placed in the air flow conditions. The vibrating energy will be collected by the nonlinear mechanical resonators and transduced by piezoelectric patches into electrical power output. Expected nonlinear effects such as synchronization of coupled oscillators, nonlinear resonance and the occurrence of several solutions will be studies in proposed configurations of two resonators. The studied energy harvesting systems will be subjected by the conditions of inertial excitation on the vibration shaker and finally in the wind tunnel. Uncoupled harvesters will also be investigated under inertia excitation conditions (on the vibration shaker) and air flow conditions (in the wind tunnel). The external circuit connecting the electrodes of the piezoelectric will be designed to control the voltage output generated by the harvesters and the mechanic-electric-magnetic coupling mechanism will be revealed. Uncertain factors (wind speed fluctuations, machining error, circuit) will be taken full consideration in the optimization. In addition to experimental studies, simulations and modelling work are planned. The results obtained in the Polish-Chinese cooperation will be published in major scientific journals and presented on the international conferences.