Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in Pavement
Piezoelectric pavement energy harvesting is a technological approach to transform mechanical energy into electrical energy. When a piezoelectric energy harvester (PEH) is embedded in asphalt pavements or concrete pavements, it is subjected to traffic loads and generates electricity. The wander of th...
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MDPI AG
2020-06-01
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| Online Access: | https://www.mdpi.com/1996-1944/13/12/2770 |
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| author | Hailu Yang Qian Zhao Xueli Guo Weidong Zhang Pengfei Liu Linbing Wang |
| author_facet | Hailu Yang Qian Zhao Xueli Guo Weidong Zhang Pengfei Liu Linbing Wang |
| author_sort | Hailu Yang |
| collection | DOAJ |
| description | Piezoelectric pavement energy harvesting is a technological approach to transform mechanical energy into electrical energy. When a piezoelectric energy harvester (PEH) is embedded in asphalt pavements or concrete pavements, it is subjected to traffic loads and generates electricity. The wander of the tire load and the positioning of the PEH affect the power generation; however, they were seldom comprehensively investigated until now. In this paper, a numerical study on the influence of embedding depth of the PEH and the horizontal distance between a tire load and the PEH on piezoelectric power generation is presented. The result shows that the relative position between the PEH and the load influences the voltage magnitude, and different modes of stress state change voltage polarity. Two mathematic correlations between the embedding depth, the horizontal distance, and the generated voltage were fitted based on the computational results. This study can be used to estimate the power generation efficiency, and thus offer basic information for further development to improve the practical design of PEHs in an asphalt pavement. |
| first_indexed | 2024-03-10T19:02:51Z |
| format | Article |
| id | doaj.art-07cae085806f41318542c8ef9f053a14 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T19:02:51Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-07cae085806f41318542c8ef9f053a142023-11-20T04:15:39ZengMDPI AGMaterials1996-19442020-06-011312277010.3390/ma13122770Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in PavementHailu Yang0Qian Zhao1Xueli Guo2Weidong Zhang3Pengfei Liu4Linbing Wang5National Center for Materials Service Safety, University of Science and Technology Beijing (USTB), Beijing 100083, ChinaNational Center for Materials Service Safety, University of Science and Technology Beijing (USTB), Beijing 100083, ChinaNational Center for Materials Service Safety, University of Science and Technology Beijing (USTB), Beijing 100083, ChinaNational Center for Materials Service Safety, University of Science and Technology Beijing (USTB), Beijing 100083, ChinaInstitute of Highway Engineering (ISAC), RWTH Aachen University, 52074 Aachen, GermanyJoint USTB Virginia Tech Lab on Multifunctional Materials, USTB, Virginia Tech, Department Civil & Environmental Engineering, Blacksburg, VA 24061, USAPiezoelectric pavement energy harvesting is a technological approach to transform mechanical energy into electrical energy. When a piezoelectric energy harvester (PEH) is embedded in asphalt pavements or concrete pavements, it is subjected to traffic loads and generates electricity. The wander of the tire load and the positioning of the PEH affect the power generation; however, they were seldom comprehensively investigated until now. In this paper, a numerical study on the influence of embedding depth of the PEH and the horizontal distance between a tire load and the PEH on piezoelectric power generation is presented. The result shows that the relative position between the PEH and the load influences the voltage magnitude, and different modes of stress state change voltage polarity. Two mathematic correlations between the embedding depth, the horizontal distance, and the generated voltage were fitted based on the computational results. This study can be used to estimate the power generation efficiency, and thus offer basic information for further development to improve the practical design of PEHs in an asphalt pavement.https://www.mdpi.com/1996-1944/13/12/2770piezoelectric energy harvesterfinite element methodopen circuit voltagemoving load |
| spellingShingle | Hailu Yang Qian Zhao Xueli Guo Weidong Zhang Pengfei Liu Linbing Wang Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in Pavement Materials piezoelectric energy harvester finite element method open circuit voltage moving load |
| title | Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in Pavement |
| title_full | Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in Pavement |
| title_fullStr | Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in Pavement |
| title_full_unstemmed | Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in Pavement |
| title_short | Numerical Analysis of Signal Response Characteristic of Piezoelectric Energy Harvesters Embedded in Pavement |
| title_sort | numerical analysis of signal response characteristic of piezoelectric energy harvesters embedded in pavement |
| topic | piezoelectric energy harvester finite element method open circuit voltage moving load |
| url | https://www.mdpi.com/1996-1944/13/12/2770 |
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