Analysis and simulation of piezoelectric vibration energy harvesters having uniform stress profile

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dc.contributor.authorKundu, Sushanta
dc.date.accessioned2023-12-18T06:39:11Z
dc.date.available2023-12-18T06:39:11Z
dc.date.issued2023
dc.descriptionSupervisor: Nemade, Harshal B
dc.description.abstractThe objective of the presented work is to improve the electrical power output by modifying the geometry of the piezoelectric vibration energy harvester (PVEH). The key contributions of the thesis are, modification of the thickness profile of conventional cantilever-based bimorph PVEH to achieve uniform stress along the beam length. In this regard, two thickness-tapered geometries are proposed: PVEH-1, which consists of a thickness-tapered substrate sandwiched between two uniform thickness piezoelectric layers, and PVEH-2, which consists of a bimorph cantilever with a substrate of uniform thickness sandwiched between two thickness-tapered piezoelectric layers. In diaphragm-based PVEH, radial cuts are introduced to reshape it in identical slices (sectors) of 32.7o each resulting in improved harvested power. Further, a broadband energy harvester is designed using several slices of different central angles.
dc.identifier.otherROLL NO.11610204
dc.identifier.urihttps://gyan.iitg.ac.in/handle/123456789/40
dc.language.isoen
dc.relation.ispartofseriesTH-3044
dc.subjectEnergy Harvestingen_US
dc.subjectBimorphen_US
dc.subjectCantileveren_US
dc.subjectDiaphragmen_US
dc.subjectPiezoelectric Vibration Energy Harvestingen_US
dc.subjectUniform Stressen_US
dc.subjectPower Densityen_US
dc.subjectReliabilityen_US
dc.subjectThickness-tapereden_US
dc.subjectAnalytical Modelingen_US
dc.subjectFinite Element Simulationen_US
dc.subjectCOMSOLen_US
dc.titleAnalysis and simulation of piezoelectric vibration energy harvesters having uniform stress profile
dc.typeThesis
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