Investigation of energy harvest and storage by using curve-shape piezoelectric unimorph

Abstract

A curve-shape piezoelectric unimorph is used for energy harvest. Deformation of the unimorph will gain electricity via piezoelectric direct effect. In this study, a cantilever unimorph encountered with external force at various vibration frequencies to generate electricity and save into a storage circuitry is investigated. Modeling of the unimorph and storage circuitry is derived. The analytical com putation and electrical charge [2]. Sodano et aI. used a PSI-5h4e piezo bonded onto a plate with dimension 80mmx40mmx2.41mm to conversion into electrical energy [6]. Mohammadi et al, used Key words: energy harvest, piezoelectric ceramics unimorph fiber-based piezoelectric (piezo fiber) material with 40% 978-1-4244-4349-9/09/$25.00