An Investigation into Resonant Frequency of Triangular V-Shaped Cantilever Piezoelectric Vibration Energy Harvester
الموضوعات :
1 - Young Researchers and Elite Club, South Tehran Branch, Islamic Azad University, Tehran
2 - School of Mechanical Engineering, University of Tehran, Tehran
الکلمات المفتاحية: Finite Element, Piezoelectric, Mechanical energy harvester, V-shaped cantilever, Resonant frequency,
ملخص المقالة :
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.
[1] Anderson T. A., Sexton D. W., 2006, A vibration energy harvesting sensor platform for increased industrial efficiency, Smart Structures and Materials 6174: 1-9.
[2] Beeby S. P., Tudor M. J., White N., 2006, Energy harvesting vibration sources for microsystems applications, Measurement Science and Technology 17: 175-195.
[3] Erturk A., Inman D. J., 2011, Piezoelectric Energy Harvesting, John Wiley & Sons.
[4] Priya S., Inman D. J., 2009, Energy Harvesting Technologies , Springer.
[5] Muthalif A.G., Nordin N. D., 2015, Optimal piezoelectric beam shape for single and broadband vibration energy harvesting: Modeling, simulation and experimental results, Mechanical Systems and Signal Processing 54: 417-426.
[6] Tang L., Yang Y., Soh C. K., 2010, Toward broadband vibration-based energy harvesting, Journal of Intelligent Material Systems and Structures 21: 1867-1897.
[7] Shahruz S., 2006, Limits of performance of mechanical band-pass filters used in energy scavenging, Journal of Sound and Vibration 293: 449-461.
[8] Yang Z., Yang J., 2009, Connected vibrating piezoelectric bimorph beams as a wide-band piezoelectric power harvester, Journal of Intelligent Material Systems and Structures 20: 569-574.
[9] Hosseini R., Hamedi M., 2015, Improvements in energy harvesting capabilities by using different shapes of piezoelectric bimorphs, Journal of Micromechanics and Microengineering 25:125008-125022.
[10] Hosseini R., Hamedi M., 2016, An investigation into resonant frequency of trapezoidal V-shaped cantilever piezoelectric energy harvester, Microsystem Technologies 22:1127-1134.
[11] Hosseini R., Hamedi M., 2016, Study of the Resonant Frequency of Unimorph Triangular V-shaped Piezoelectric Cantilever Energy Harvester, International Journal of Advanced Design and Manufacturing Technology 8(4):75-82.
[12] Yang K., Li Z., Jing Y., Chen D., Ye T., 2009, Research on the resonant frequency formula of V-shaped cantilevers, 4th IEEE International Conference on Nano/Micro Engineered and Molecular Systems.
[13] Senturia S. D., 2001, Microsystem Design , Kluwer Academic Publishers Boston.
[14] Rao S. S., 2007, Vibration of Continuous Systems, John Wiley & Sons.
