Design and performance study of displacement-driven piezoelectric energy harvesters used in steel spring floating slab tracks DOI
Chao Du, Jianjun Wang,

Yalei Cao

et al.

Journal of Intelligent Material Systems and Structures, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

The deflection of track structures, which represents an abundant source mechanical energy in railway systems, holds potential for powering monitoring devices. In this study, a kind displacement-driven piezoelectric harvester specifically steel spring floating slab tracks is developed, boasts high power output and two notable advantages: (a) Its compact design seamlessly integrates the force transmission metal tube stack within compression spring, significantly reducing overall height device. This makes it ideal applications where space structures limited. (b) inverted facilitates easy assembly with high-stiffness spring. effectively transmits more vibration to stacks, resulting substantially greater electrical outputs. Energy harvesting performance proposed harvester, including AC voltage under harmonic displacement, has been assessed both experimentally theoretically. Effects displacement input, parameters stiffness on are discussed. laboratory tests, fabricated prototype can achieve maximum average up 942.55 mW at optimal resistance 11 kΩ, 4 mm, frequency 5 Hz. Furthermore, when exposed tracks, prototyped device was able harvest approximately 742 mJ 76 over 10 cycles signals. translates total 15.14 J per day, sufficient ViPSN2.0 wireless temperature Internet Things (IoT) sensor node. findings study offer valuable guidelines development harvesters systems.

Language: Английский

Enhancing piezoelectric energy harvesters with rotating triangular auxetic structures DOI
Xiaofan Zhang, Xiaobiao Shan,

Guangdong Sui

et al.

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110081 - 110081

Published: Feb. 1, 2025

Language: Английский

Citations

0
Design and performance study of displacement-driven piezoelectric energy harvesters used in steel spring floating slab tracks DOI
Chao Du, Jianjun Wang,

Yalei Cao

et al.

Journal of Intelligent Material Systems and Structures, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

The deflection of track structures, which represents an abundant source mechanical energy in railway systems, holds potential for powering monitoring devices. In this study, a kind displacement-driven piezoelectric harvester specifically steel spring floating slab tracks is developed, boasts high power output and two notable advantages: (a) Its compact design seamlessly integrates the force transmission metal tube stack within compression spring, significantly reducing overall height device. This makes it ideal applications where space structures limited. (b) inverted facilitates easy assembly with high-stiffness spring. effectively transmits more vibration to stacks, resulting substantially greater electrical outputs. Energy harvesting performance proposed harvester, including AC voltage under harmonic displacement, has been assessed both experimentally theoretically. Effects displacement input, parameters stiffness on are discussed. laboratory tests, fabricated prototype can achieve maximum average up 942.55 mW at optimal resistance 11 kΩ, 4 mm, frequency 5 Hz. Furthermore, when exposed tracks, prototyped device was able harvest approximately 742 mJ 76 over 10 cycles signals. translates total 15.14 J per day, sufficient ViPSN2.0 wireless temperature Internet Things (IoT) sensor node. findings study offer valuable guidelines development harvesters systems.

Language: Английский

Citations

0