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Issue title: Selected papers from the International Symposium on Applied Electromagnetics and Mechanics - ISEM 2019
Guest editors: Jinhao Qiu, Ke Xiong and Hongli Ji
Article type: Research Article
Authors: Tanaka, Yoshikazua; | Odake, Satorua | Miyake, Juna | Mutsuda, Hidemia | Popov, Atanas A.b | Patel, Rupeshc | McWilliam, Stewartb
Affiliations: [a] Graduate School of Engineering, Hiroshima University, Higashihiroshima, Hiroshima, Japan | [b] Faculty of Engineering, The University of Nottingham, Nottingham, UK | [c] SMT (Smart Manufacturing Technology), Nottingham, UK
Correspondence: [*] Corresponding author: Yoshikazu Tanaka, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, 739-8527, Hiroshima, Japan. E-mail: [email protected]
Abstract: Energy harvesting methods that use functional materials have attracted interest because they can take advantage of an abundant but underutilized energy source. Most vibration energy harvester designs operate most effectively around their resonant frequency. However, in practice, the frequency band for ambient vibrational energy is typically broad. The development of technologies for broadband energy harvesting is therefore desirable. The authors previously proposed an energy harvester, called a flexible piezoelectric device (FPED), that consists of a piezoelectric film (polyvinylidene difluoride) and a soft material, such as silicon rubber or polyethylene terephthalate. The authors also proposed a system based on FPEDs for broadband energy harvesting. The system consisted of cantilevered FPEDs, with each FPED connected via a spring. Simply supported FPEDs also have potential for broadband energy harvesting, and here, a theoretical evaluation method is proposed for such a system. Experiments are conducted to validate the derived model.
Keywords: Energy harvesting, piezoelectric material, FPED, spring, broad band
DOI: 10.3233/JAE-209323
Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 64, no. 1-4, pp. 201-210, 2020
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