Zgadzam się
Nasza strona zapisuje niewielkie pliki tekstowe, nazywane ciasteczkami (ang. cookies) na Twoim urządzeniu w celu lepszego dostosowania treści oraz dla celów statystycznych. Możesz wyłączyć możliwość ich zapisu, zmieniając ustawienia Twojej przeglądarki. Korzystanie z naszej strony bez zmiany ustawień oznacza zgodę na przechowywanie cookies w Twoim urządzeniu.
The subject of the model research contained in this paper is a new design solution of the
energy harvesting system with a star-shaped structure of elastic elements and variable configuration.
Numerical experiments focused mainly on the assessment of the configuration of elastic elements
in the context of energy harvesting efficiency. The results of computer simulations were limited to
zero initial conditions as it is the natural position of the static equilibrium. The article compares the
energy efficiency for the selected range of the dimensionless excitation frequency. For this purpose,
four cases of elastic element configurations were compared. The results are visualized based on
the diagram of RMS voltage induced on piezoelectric electrodes, bifurcation diagrams, Lyapunov
exponents, and Poincaré maps, showing the impact of individual solutions on the efficiency of energy
harvesting. The results of the simulations show that the harvester’s efficiency ranges from 4 V to 20 V
depending on the configuration and the frequency range of the excitation, but the design allows for a
smooth adjustment to the given conditions.