| Title |
Vibration energy harvesting based on free body moving in space during vibro shock mode / |
| Authors |
Stasytis, Egidijus ; Gaidys, Rimvydas ; Daniulaitis, Vytautas ; Narijauskaitė, Birutė |
| DOI |
10.5755/j02.mech.31034 |
| Full Text |
|
| Is Part of |
Mechanika.. Kaunas : KTU. 2022, vol. 28, no. 3, p. 222-229.. ISSN 1392-1207. eISSN 2029-6983 |
| Keywords [eng] |
piezoelectric transducers ; modelling and simu lation ; piezoelectric transduction mechanism ; vibration energy harvester ; vibro shock |
| Abstract [eng] |
The type of the generator was chosen to be piezoe-lectric because it is most widely used to capture the energy of mechanical vibrations and convert it into electricity. A 2D generator model was chosen for the analysis of the dy-namics of the energy harvester (VEH) for a free body mov-ing in space during vibro shock mode. The computational schemes of the model are presented. A mathematical model describing the dynamics is developed: generator casing, in-ertial mass, nonlinear contact/impact. The mathematical model is implemented by the Runge-Kutta numerical method in the Matlab system. Analysis of experimental and modeling results is performed: comparison of generator eigen frequencies, the logarithmic decrement and the damp-ing coefficient – the error is in range of 5%. This generator can be used to collect mechanical energy of water waves, wind, human movements, and other environmental factors in the presence of the body's free movement trajectory in space. |
| Published |
Kaunas : KTU |
| Type |
Journal article |
| Language |
English |
| Publication date |
2022 |
| CC license |
|
