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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Topology Optimization of the Thickness Profile of Bimorph Piezoelectric Energy Harvesting Devices

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Author(s):
de Almeida, Breno Vincenzo [1] ; Pavanello, Renato [1]
Total Authors: 2
Affiliation:
[1] Univ Estadual Campinas, Sch Mech Engn, Dept Computat Mech, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS; v. 5, n. 1, p. 113-127, WIN 2019.
Web of Science Citations: 1
Abstract

Due to developments in additive manufacturing, the production of piezoelectric materials with complex geometries is becoming viable and enabling the manufacturing of thicker harvesters. Therefore, in this study a piezoelectric harvesting device is modelled as a bimorph cantilever beam with a series connection and an intermediate metallic substrate using the plane strain hypothesis. On the other hand, the thickness of the harvester's piezoelectric material is structurally optimized using a discrete topology optimization method. Moreover, different optimization parameters are varied to investigate the algorithm's convergence. The results of the optimization are presented and analyzed to examine the influence of the harvester's geometry and its different substrate materials on the harvester's energy conversion efficiency. (AU)

FAPESP's process: 18/00075-4 - Topology optimization of periodic piezoelectric materials for energy harvesting devices
Grantee:Breno Vincenzo de Almeida
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 13/08293-7 - CCES - Center for Computational Engineering and Sciences
Grantee:Munir Salomao Skaf
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC