Enhancement of power output by a new stress-applied mode on circular piezoelectric energy harvester
Source abstract
Abstract
A new stress-applied mode is proposed on piezoelectric circular diaphragm energy harvester. Differing from the usual mode used in previous researches, the mass stick at the center of the diaphragm (PZT-51) is designed into an annular hollow shape. In this case, stress of the mass is applied along the edge of the copper sheet. A screw bonded with the undersurface of the diaphragm transfers force from the vibrator to the diaphragm. This device has a cylindrical shape and its volume is ∼7.9 cm3. With this new stress-applied mode, the piezoelectric energy harvester (with an optimal load of 18 kΩ, a mass of 30 g) could generate a maximum power output of ∼20.8 mW under 9.8 m·s-2 at its resonant frequency of ∼237 Hz. Meanwhile, the greater the hardness ratio between the ceramic and the copper sheet, the greater the advantages of the new structure.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Innovative Energy Harvesting Technologies · Advanced Sensor and Energy Harvesting Materials · Energy Harvesting in Wireless Networks
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Advanced Civil Engineering Materials (Ministry of Education), Functional Materials Research Laboratory, College of Materials Science and Engineering, Tongji University , No. 4800 Caoan Road, Shanghai 201804, China
Funding
National Natural Science Foundation of China
References (25)
Show source-provided references
1. Effect of electrode configurations on piezoelectric vibration energy harvesting performance10.1088/0964-1726/24/4/045026 ↗
2. Piezoelectric energy harvester for public roadway: On-site installation and evaluation10.1016/j.apenergy.2016.04.031 ↗
3. Equivalent circuit modeling of a piezo-patch energy harvester on a thin plate with AC–DC conversion10.1088/0964-1726/25/5/055015 ↗
4. Vibration energy harvesting from an array of flexible stalks exposed to airflow: A theoretical study10.1088/0964-1726/25/3/035014 ↗
5. The effects of width reduction on the damping of a cantilever beam and its application in increasing the harvesting power of piezoelectric energy harvester10.1088/0964-1726/24/4/045006 ↗
6. Acoustically induced current in graphene by aluminum nitride transducers10.1063/1.4940400 ↗
7. Electret transducer for vibration-based energy harvesting10.1063/1.4919875 ↗
8. Comparison of PZN-PT, PMN-PT single crystals and PZT ceramic for vibration energy harvesting10.1016/j.enconman.2016.05.085 ↗
9. Theoretical modeling and analysis of two-degree-of-freedom piezoelectric energy harvester with stopper10.1016/j.sna.2016.04.060 ↗
10. A novel piezoelectric actuator with a screw-coupled stator and rotor for driving an aperture10.1088/0964-1726/25/3/035027 ↗
11. Design and development of a novel bi-directional piezoelectric energy harvester10.1088/0964-1726/23/9/095012 ↗
12. Displacement and resonance behaviors of a piezoelectric diaphragm driven by a double-sided spiral electrode10.1088/0964-1726/21/5/055001 ↗
13. A distributed parameter electromechanical model for cantilevered piezoelectric energy harvesters,10.1115/1.2890402 ↗
14. Vibration analysis of piezoelectric ceramic circular nanoplates considering surface and nonlocal effects10.1016/j.compstruct.2016.01.035 ↗
15. Size-dependent bending and vibration behaviors of piezoelectric circular nanoplates10.1088/0964-1726/25/3/035017 ↗
16. Torsional wave propagation in a circular plate of piezoelectric radial phononic crystals10.1063/1.4935451 ↗
17. Locally resonant band gaps achieved by equal frequency shunting circuits of piezoelectric rings in a periodic circular plate10.1016/j.jsv.2014.10.026 ↗
18. Piezoelectric circular diaphragm with mechanically induced pre-stress for energy harvesting10.1088/0964-1726/23/8/085025 ↗
19. Piezoelectric energy harvesting with a clamped circular plate: Experimental study10.1177/1045389x05054043 ↗
20. 1974
21. Energy harvesting with piezoelectric drum transducer10.1063/1.2713357 ↗
22. Vibration energy harvesting with a clamped piezoelectric circular diaphragm10.1016/j.ceramint.2011.04.099 ↗
23. Energy harvester array using piezoelectric circular diaphragm for broadband vibration10.1063/1.4878537 ↗
24. Optimization of energy harvesting based on the uniform deformation of piezoelectric ceramic10.1142/s1793604716500697 ↗
25. Vibration energy harvesting using a piezoelectric circular diaphragm array10.1109/tuffc.2012.2422 ↗