%0 Journal Article
%T An Investigation into Resonant Frequency of Triangular V-Shaped Cantilever Piezoelectric Vibration Energy Harvester
%J Journal of Solid Mechanics
%I Islamic Azad University - Arak Branch
%Z 2008-3505
%A Hosseini, R
%A Hamedi, M
%D 2016
%\ 09/20/2016
%V 8
%N 3
%P 560-567
%! An Investigation into Resonant Frequency of Triangular V-Shaped Cantilever Piezoelectric Vibration Energy Harvester
%K Mechanical energy harvester
%K Piezoelectric
%K V-shaped cantilever
%K Resonant frequency
%K Finite Element
%R
%X Power supply is a bottle-neck problem of wireless micro-sensors, especially where the replacement of batteries is impossible or inconvenient. Now piezoelectric material is being used to harvest vibration energy for self-powered sensors. However, the geometry of a piezoelectric cantilever beam will greatly affect its vibration energy harvesting ability. This paper deduces a remarkably precise analytical formula for calculating the fundamental resonant frequency of V-shaped cantilevers using Rayleigh-Ritz method. This analytical formula, which is very convenient for mechanical energy harvester design based on Piezoelectric effect, is then validated by ABAQUS simulation. This formula raises a new perspective that, among all the V-shaped cantilevers and in comparison with rectangular one, the simplest tapered cantilever can lead to maximum resonant frequency and highest sensitivity.
%U http://jsm.iau-arak.ac.ir/article_524270_fea94f8cea58b232eece56646ef544e3.pdf