ANALYSIS OF THE DYNAMICS OF AN ELECTRO MECHANICAL ENERGY HARVESTER BEAM BASED ON PIEZOELECTRICITY

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GHODSI GHARAB ALI; JAFARI HAMID; GHAZAVI MOHAMMAD REZA; AZIZI SABER

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Journal: Modares Mechanical Engineering Year:2016 | Volume:15 | Issue:10 Page(s): 128-136

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Title

ANALYSIS OF THE DYNAMICS OF AN ELECTRO MECHANICAL ENERGY HARVESTER BEAM BASED ON PIEZOELECTRICITY

Author(s)

GHODSI GHARAB ALI | JAFARI HAMID | GHAZAVI MOHAMMAD REZA | AZIZI SABER | Issue Writer Certificate

Keywords

MICRO ENERGY HARVESTERQ2

PIEZOELECTRICQ2

FREE VIBRATIONQ2

FORCED VIBRATIONQ2

Abstract

Dynamics of an electromechanical energy harvesting cantilever beam deposited by two PIEZOELECTRIC layers throughout the entire length have been studied. Two different output circuit configurations including parallel and series connections have been investigated. The free and FORCED VIBRATION problems are studied by discretizing the motion equation and numerically solving the resultant along with the governing electrical equation. The energy conservation law for the proposed electromechanical energy harvesting device has been examined and accordingly verified. The behavior of the energy harvester subjected to various external load resistances was studied and it was concluded that in the absence of mechanical viscous damping, the system exhibited damped response which was attributed to the energy consumption throughout the output circuit. It was proved that as the external load resistance increases, until the special load resistance the attenuation rate of the response amplitude and accordingly the harvested voltage also increase, and for higher load resistance it was reverse. The amount of harvested power for both parallel and series output circuit configurations were examined and it was indicated that in some load resistances in series configuration the harvested voltage compared with that of the parallel connection is considerably higher; however, the harvested current was lower than that of the parallel connection.

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APA: Copy

GHODSI GHARAB, ALI, JAFARI, HAMID, GHAZAVI, MOHAMMAD REZA, & AZIZI, SABER. (2016). ANALYSIS OF THE DYNAMICS OF AN ELECTRO MECHANICAL ENERGY HARVESTER BEAM BASED ON PIEZOELECTRICITY. MODARES MECHANICAL ENGINEERING, 15(10), 128-136. SID. https://sid.ir/paper/179634/en

Vancouver: Copy

GHODSI GHARAB ALI, JAFARI HAMID, GHAZAVI MOHAMMAD REZA, AZIZI SABER. ANALYSIS OF THE DYNAMICS OF AN ELECTRO MECHANICAL ENERGY HARVESTER BEAM BASED ON PIEZOELECTRICITY. MODARES MECHANICAL ENGINEERING[Internet]. 2016;15(10):128-136. Available from: https://sid.ir/paper/179634/en

IEEE: Copy

ALI GHODSI GHARAB, HAMID JAFARI, MOHAMMAD REZA GHAZAVI, and SABER AZIZI, “ANALYSIS OF THE DYNAMICS OF AN ELECTRO MECHANICAL ENERGY HARVESTER BEAM BASED ON PIEZOELECTRICITY,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 10, pp. 128–136, 2016, [Online]. Available: https://sid.ir/paper/179634/en

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