Piezoelectric Energy Generators Based on Spring and Inertial Mass
1
School of Electrical and Electronics Engineering, Chung-Ang University, Seoul 06974, Korea
2
Agency for Defense Development, Daejeon 34186, Korea
3
Department of Physics, Chung-Ang University, Seoul 156-756, Korea
*
Author to whom correspondence should be addressed.
Materials 2018, 11(11), 2163; https://doi.org/10.3390/ma11112163
Received: 12 October 2018
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Revised: 25 October 2018
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Accepted: 30 October 2018
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Published: 1 November 2018
(This article belongs to the Special Issue Advanced Functional Nanomaterials and Their Applications)
In this study, inertial mass-based piezoelectric energy generators with and without a spring were designed and tested. This energy harvesting system is based on the shock absorber, which is widely used to protect humans or products from mechanical shock. Mechanical shock energies, which were applied to the energy absorber, were converted into electrical energies. To design the energy harvester, an inertial mass was introduced to focus the energy generating position. In addition, a spring was designed and tested to increase the energy generation time by absorbing the mechanical shock energy and releasing a decreased shock energy over a longer time. Both inertial mass and the spring are the key design parameters for energy harvesters as the piezoelectric materials, Pb(Mg1/3Nb2/3)O3-PbTiO3 piezoelectric ceramics were employed to store and convert the mechanical force into electric energy. In this research, we will discuss the design and performance of the energy generator system based on shock absorbers.
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Keywords:
piezoelectric; energy harvester; shock absorber
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MDPI and ACS Style
Yoon, S.; Kim, J.; Cho, K.-H.; Ko, Y.-H.; Lee, S.-K.; Koh, J.-h. Piezoelectric Energy Generators Based on Spring and Inertial Mass. Materials 2018, 11, 2163. https://doi.org/10.3390/ma11112163
AMA Style
Yoon S, Kim J, Cho K-H, Ko Y-H, Lee S-K, Koh J-h. Piezoelectric Energy Generators Based on Spring and Inertial Mass. Materials. 2018; 11(11):2163. https://doi.org/10.3390/ma11112163
Chicago/Turabian StyleYoon, Sanghyun, Jinhwan Kim, Kyung-Ho Cho, Young-Ho Ko, Sang-Kwon Lee, and Jung-hyuk Koh. 2018. "Piezoelectric Energy Generators Based on Spring and Inertial Mass" Materials 11, no. 11: 2163. https://doi.org/10.3390/ma11112163
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