Abstract
In recent years, harvesting the waste energy is one of the major concerns for mankind. With the improvement in micro and nano-electro mechanical system, the energy consumption of various components is reducing resulting in the application of wireless devices at larger scale. In the present study, a piezoelectric material-based energy harvester is modelled and analysis is carried out in context of open circuit voltage. The energy harvester is numerically modelled using finite element technique by incorporating the coupled electro-mechanical physics and the properties of carbon nano-tube reinforced composite structure. The influence of distribution of the carbon nano-tubes and also the volume fraction of the carbon nano-tubes on the open circuit voltage is investigated. FG-X distribution of volume fraction demonstrates approximately 5.6% and 7.2% increase in open circuit voltage compared to UD volume fraction for 11% and 17% respectively.
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