Open AccessEnergy harvesting from human motions for wearable applications
Author(s) -
Wenying Cao,
Weidong Yu,
Zhaoling Li
Publication year - 2018
Publication title -
industria textilă
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.281
H-Index - 14
ISSN - 1222-5347
DOI - 10.35530/it.069.05.1531
Subject(s) - energy harvesting , arch , voltage , energy (signal processing) , type (biology) , power (physics) , wearable technology , electric potential energy , wearable computer , electrical engineering , acoustics , materials science , structural engineering , computer science , engineering , geology , physics , paleontology , quantum mechanics , embedded system
Harvesting biomechanical energy from human’s movement is an alternative solution to effectively power the wearableelectronics. In this paper, two impact-driven piezoelectric energy harvesters were developed which can be integratedwithin human shoe-soles and also can be tailored to integrate in commercial carpets or outdoor roadway to harvest themassive mechanical energy from the passing vehicles or people crowds at low frequencies. For a comprehensive study,two buckling types of PVDF harvesters were selected and tested. It has been shown that the mechanical responses ofthe arch type prototype and the C type prototype are different. In addition, the mechanical response of the C type canbe affected by the vertical height of the C type. The peak-peak voltage of the C type increases with the vertical heightof the C type decreases. The peak-peak voltage of arch type is almost the same with the C type when the vertical heightof which is 25 mm. The stability of the output voltage of the arch type is the worst when compared with that of the threeC types. The stability of the output voltage of the C type when the vertical height of which is 25 mm is the worst amongthe three different vertical heights