Improving Energy Harvesting from Bridge Vibration Excited by Moving Vehicles with a Bi-Stable Harvester
To monitor the health status of the bridge, many sensors are needed to be mounted on it. Converting bridge vibration energy to electrical energy is considered as a potential solution to the problem of providing reliable electric power to these sensors. The objective of this work is to present an ope...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/6/2237 |
| _version_ | 1797445544523595776 |
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| author | Zhiyong Zhou Haiwei Zhang Weiyang Qin Pei Zhu Wenfeng Du |
| author_facet | Zhiyong Zhou Haiwei Zhang Weiyang Qin Pei Zhu Wenfeng Du |
| author_sort | Zhiyong Zhou |
| collection | DOAJ |
| description | To monitor the health status of the bridge, many sensors are needed to be mounted on it. Converting bridge vibration energy to electrical energy is considered as a potential solution to the problem of providing reliable electric power to these sensors. The objective of this work is to present an operable strategy for improving the electric energy output of a piezoelectric energy harvester installed on a bridge by introducing bi-stable characteristics. A bi-stable harvester is proposed. By adjusting the tip and fixed magnets, different types of potential energy can be generated, and then the harvester can exhibit the linear, mono-stable and bi-stable characteristics. In the bi-stable state, the harvester triggers snap-through motions easily and generates large outputs. The corresponding prototype was fabricated, and the experiment was carried out to validate the advantage of the bi-stable energy harvester. The experiment results show that the bi-stable energy harvester outperforms the classical linear harvester over the whole range of vehicle speed. As the vehicle speed exceeds a critical one, the snap-through motion will happen, which is beneficial to enhancing the electricity output. This conceptual design may provide guidance for promoting the performance of bridge energy harvesting. |
| first_indexed | 2024-03-09T13:28:20Z |
| format | Article |
| id | doaj.art-8459f9192ce8467a9aae8ed9dd17f682 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T13:28:20Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-8459f9192ce8467a9aae8ed9dd17f6822023-11-30T21:21:37ZengMDPI AGMaterials1996-19442022-03-01156223710.3390/ma15062237Improving Energy Harvesting from Bridge Vibration Excited by Moving Vehicles with a Bi-Stable HarvesterZhiyong Zhou0Haiwei Zhang1Weiyang Qin2Pei Zhu3Wenfeng Du4School of Civil Engineering and Architecture, Henan University, Kaifeng 475004, ChinaSchool of Civil Engineering and Architecture, Henan University, Kaifeng 475004, ChinaDepartment of Engineering Mechanics, Northwestern Polytechnical University, Xi’an 710072, ChinaSchool of Civil Engineering and Architecture, Henan University, Kaifeng 475004, ChinaSchool of Civil Engineering and Architecture, Henan University, Kaifeng 475004, ChinaTo monitor the health status of the bridge, many sensors are needed to be mounted on it. Converting bridge vibration energy to electrical energy is considered as a potential solution to the problem of providing reliable electric power to these sensors. The objective of this work is to present an operable strategy for improving the electric energy output of a piezoelectric energy harvester installed on a bridge by introducing bi-stable characteristics. A bi-stable harvester is proposed. By adjusting the tip and fixed magnets, different types of potential energy can be generated, and then the harvester can exhibit the linear, mono-stable and bi-stable characteristics. In the bi-stable state, the harvester triggers snap-through motions easily and generates large outputs. The corresponding prototype was fabricated, and the experiment was carried out to validate the advantage of the bi-stable energy harvester. The experiment results show that the bi-stable energy harvester outperforms the classical linear harvester over the whole range of vehicle speed. As the vehicle speed exceeds a critical one, the snap-through motion will happen, which is beneficial to enhancing the electricity output. This conceptual design may provide guidance for promoting the performance of bridge energy harvesting.https://www.mdpi.com/1996-1944/15/6/2237energy harvestingbridge vibrationbi-stable energy harvesterlinear energy harvestersnap-through motion |
| spellingShingle | Zhiyong Zhou Haiwei Zhang Weiyang Qin Pei Zhu Wenfeng Du Improving Energy Harvesting from Bridge Vibration Excited by Moving Vehicles with a Bi-Stable Harvester Materials energy harvesting bridge vibration bi-stable energy harvester linear energy harvester snap-through motion |
| title | Improving Energy Harvesting from Bridge Vibration Excited by Moving Vehicles with a Bi-Stable Harvester |
| title_full | Improving Energy Harvesting from Bridge Vibration Excited by Moving Vehicles with a Bi-Stable Harvester |
| title_fullStr | Improving Energy Harvesting from Bridge Vibration Excited by Moving Vehicles with a Bi-Stable Harvester |
| title_full_unstemmed | Improving Energy Harvesting from Bridge Vibration Excited by Moving Vehicles with a Bi-Stable Harvester |
| title_short | Improving Energy Harvesting from Bridge Vibration Excited by Moving Vehicles with a Bi-Stable Harvester |
| title_sort | improving energy harvesting from bridge vibration excited by moving vehicles with a bi stable harvester |
| topic | energy harvesting bridge vibration bi-stable energy harvester linear energy harvester snap-through motion |
| url | https://www.mdpi.com/1996-1944/15/6/2237 |
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