Interference effects on flow-induced oscillation of three tandem cylinders with passive turbulence control DOI
Huaijun Li, Michael M. Bernitsas,

Hai Sun

et al.

Journal of Offshore Mechanics and Arctic Engineering, Journal Year: 2024, Volume and Issue: 147(2)

Published: July 16, 2024

Abstract The characteristics of flow-induced oscillation (FIO) multiple tandem cylinders with passive turbulence control (PTC) change due to interference between PTC cylinders. Identifying positive and negative interferences is vital for designing marine structures involving on elastic supports. Experiments a single cylinder, two three in were conducted study the placing an identical oscillating cylinder upstream, downstream, both upstream downstream. Critical parameters (damping, stiffness) Reynolds number (Re) are varied tests. onset inflow velocity reduced back-to-back vortex-induced vibration (VIV) galloping achieved, when vicinity basic oscillator. downstream enhances FIO In VIV region, one more effective than enhancement improves lower stiffness damping ratios. tends suppress oscillator higher stiffness. suppression vigorous that opposite true region. When placed oscillator, its enhanced whilst it suppressed

Language: Английский

A novel T-shaped beam bistable piezoelectric energy harvester with a moving magnet DOI

Shuai Dang,

Chengwei Hou, Xiaobiao Shan

et al.

Energy, Journal Year: 2024, Volume and Issue: 300, P. 131486 - 131486

Published: April 30, 2024

Language: Английский

Citations

12
Harvesting Broadband Breeze Vibration Energy via Elastic Bistable Triboelectric Nanogenerator for In Situ, Self‐Powered Monitoring of Power Transmission Lines DOI
Liang Wang, Yaxun Zhang, Xiaosong Zhang

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 6, 2024

Abstract Triboelectric nanogenerator (TENG), as a new technique for energy capture, has unique advantages in harvesting high‐entropy energy. In view of the wind‐induced vibration characteristics power transmission lines, symmetric elastic bistable triboelectric (EB‐TENG) is introduced this work. The core component EB‐TENG cantilever beam structure, which designed by introducing an perturbation structure to conventional beam. This results several sub‐resonance frequencies addition natural frequencies, broadens frequency band EB‐TENG. addition, adopts symmetrical ensure effective energy, even situations self‐tilting and external tilting vibration. experimental outcomes confirm that can significantly harvest 7–60 Hz range delivers maximum peak 2.846 mW, meets major lines under action breeze. Finally, self‐powered strategy based on online monitoring devices (such tower obstruction lights, temperature humidity sensors, line high wireless alarms) constructed. work helps promote application in‐situ TENG smart lines.

Language: Английский

Citations

6
Biomimetic swallowtail V-shaped attachments for enhanced low-speed wind energy harvesting by a galloping piezoelectric energy harvester DOI
Zhiyong Zhou,

Di Cao,

Haobo Huang

et al.

Energy, Journal Year: 2024, Volume and Issue: 304, P. 132063 - 132063

Published: June 18, 2024

Language: Английский

Citations

5
Improving the performance of vibration energy harvesting from weak excitations by a lever-type mechanism DOI

Mengjie Shang,

Weiyang Qin,

Kuan Lu

et al.

Mechanical Systems and Signal Processing, Journal Year: 2024, Volume and Issue: 222, P. 111766 - 111766

Published: July 29, 2024

Language: Английский

Citations

5
Ocean non-linear energy harvesting (NEH) with a buckled piezoelectric beam DOI

Moslem Heidari,

Gholam Hossein Rahimi, Saeed Bab

et al.

Applied Ocean Research, Journal Year: 2024, Volume and Issue: 150, P. 104115 - 104115

Published: July 15, 2024

Language: Английский

Citations

4
Numerical study on the reduction effect of sloshing phenomenon and energy harvesting using a flexible piezoelectric nanogenerator DOI Creative Commons

Muhammad Akbar Asis,

Hidemi Mutsuda, Takuji Nakashima

et al.

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104543 - 104543

Published: March 1, 2025

Language: Английский

Citations

0
Enhancing energy harvesting through hybrid bluff body at a predefined angle of attack coupling vortex-induced vibration and galloping DOI

Haobo Huang,

Zhiyong Zhou,

Pei Zhu

et al.

Ocean Engineering, Journal Year: 2024, Volume and Issue: 312, P. 119029 - 119029

Published: Aug. 23, 2024

Language: Английский

Citations

1
Advancements and Future Prospects in Ocean Wave Energy Harvesting Technology Based on Micro-Energy Technology DOI Creative Commons

Weihong Yang,

Jiaxin Peng, Qiulin Chen

et al.

Micromachines, Journal Year: 2024, Volume and Issue: 15(10), P. 1199 - 1199

Published: Sept. 27, 2024

Marine wave energy exhibits significant potential as a renewable resource due to its substantial storage capacity and high density. However, conventional power generation technologies often suffer from drawbacks such maintenance costs, cumbersome structures, suboptimal conversion efficiencies, thereby limiting their potential. The based on micro-energy technology have emerged promising new approaches in recent years, owing inherent advantages of cost-effectiveness, simplistic structure, ease manufacturing. This paper provides comprehensive overview the current research status harvesting through technologies, including detailed descriptions piezoelectric nanogenerators, electromagnetic generators, triboelectric dielectric elastomer hydrovoltaic hybrid nanogenerators. Finally, we provide prevailing issues challenges associated with these while also offering insights into future development trajectory technology.

Language: Английский

Citations

1
Design, modeling and experiments of bistable wave energy harvester with directional self-adaptive characteristics DOI

Zeng Xianming,

Nan Wu,

Jiyang Fu

et al.

Energy, Journal Year: 2024, Volume and Issue: 311, P. 133454 - 133454

Published: Oct. 12, 2024

Language: Английский

Citations

1
Interference effects on flow-induced oscillation of three tandem cylinders with passive turbulence control DOI
Huaijun Li, Michael M. Bernitsas,

Hai Sun

et al.

Journal of Offshore Mechanics and Arctic Engineering, Journal Year: 2024, Volume and Issue: 147(2)

Published: July 16, 2024

Abstract The characteristics of flow-induced oscillation (FIO) multiple tandem cylinders with passive turbulence control (PTC) change due to interference between PTC cylinders. Identifying positive and negative interferences is vital for designing marine structures involving on elastic supports. Experiments a single cylinder, two three in were conducted study the placing an identical oscillating cylinder upstream, downstream, both upstream downstream. Critical parameters (damping, stiffness) Reynolds number (Re) are varied tests. onset inflow velocity reduced back-to-back vortex-induced vibration (VIV) galloping achieved, when vicinity basic oscillator. downstream enhances FIO In VIV region, one more effective than enhancement improves lower stiffness damping ratios. tends suppress oscillator higher stiffness. suppression vigorous that opposite true region. When placed oscillator, its enhanced whilst it suppressed

Language: Английский

Citations

0