Multi-Band Enhanced Energy Harvesting from Dual Sources Using a Symmetrical Gradient Metamaterial Beam
Weiqiang Mo, Yubin Lin, Shiqing Huang, Dongqin Li, Rongfeng Deng, Fengshou Gu · 2025
Read Multi-Band Enhanced Energy Harvesting from Dual Sources Using a Symmetrical Gradient Metamaterial Beam by Weiqiang Mo, Yubin Lin, Shiqing Huang, Dongqin Li, Rongfeng Deng, Fengshou Gu (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12694202.txt.
Description
Wireless sensors watch rotating machines for early signs of failure, but their batteries are costly to maintain and bad for the environment. Vibration harvesters can power them instead, yet most designs ignore high frequency vibrations, which are weak but rich in machine health information. Worse, when two vibration sources shake a harvester, their waves can cancel each other. Weiqiang Mo and co-authors build a beam from a gradient metamaterial with a symmetric layout to solve both problems.
The beam traps waves in chosen frequency bands, a trick called rainbow trapping, and carries patches that turn bending into electricity. Simulations tuned the design, and bench tests confirmed it. The finished beam strengthened harvesting across several bands between one thousand and thirty-five hundred hertz, and lifted the harvested energy more than a hundred fold. The authors present it as a step toward sensors that power and sense at once.
Catalog record
| CREATOR | Weiqiang Mo, Yubin Lin, Shiqing Huang, Dongqin Li, Rongfeng Deng, Fengshou Gu |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 40 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |