文章基本信息

标题：Vibration Energy Harvester (VEH) for a Free Body Moving in Space at Vibro Shock Mode
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作者：Rimvydas GAIDYS ; Egidijus STASYTIS ; Vytautas DANIULAITIS 等
期刊名称：Mechanika
印刷版ISSN：1392-1207
出版年度：2022
卷号：28
期号：3
页码：222-229
DOI：10.5755/j02.mech.31034
语种：English
出版社：Kauno Technologijos Universitetas
摘要：The type of the generator was chosen to be piezoelectric 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 dynamics of the energy harvester (VEH) for a free body moving in space at vibro shock mode. The computational schemes of the model are presented. A mathematical model describing the dynamics is developed: generator casing, inertial 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 damping 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.
关键词：piezoelectric transducers;modelling and simulation;piezoelectric transduction mechanism;vibration energy harvester;vibro shock