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Influence of predefined angle of attack on piezoelectric energy harvesting from transverse galloping of different bluff bodies

Influence of predefined angle of attack on piezoelectric energy harvesting from transverse galloping of different bluff bodies
Influence of predefined angle of attack on piezoelectric energy harvesting from transverse galloping of different bluff bodies
The development of smart Internet-of-Things (IoT) solutions requires sensor nodes to be placed at different locations of monitored structures. Wireless solutions are quite attractive because of their simplicity although requiring for local energy supply. In this context, this study investigates the influences of the predefined angle of attack on the piezoelectric energy harvesting based on transverse galloping of different bluff bodies. The investigation is based on a lumped electro-aero-mechanical model with linear electrical and mechanical properties and nonlinear aerodynamic forces evaluated using the quasi-steady theory. The performances of energy harvesters with six different bluff bodies are analyzed at various predefined angles of attack: four rectangular cross-sections with different width-to-height ratios (i.e., b/d), one trapezium section, and one equal angle section. The main purpose is to understand the sensitivity of various bluff body-based energy harvesters on the predefined angle of attack, and further suggest a bluff body-based energy harvester that is robust to the predefined angle of attack. The results show that the response is quite dependent on the characteristic of the electro-mechanical system and the bluff body cross-section and angle of attack. In all cases, the load resistance should be tuned to maximize energy production. The largest vibration amplitude (i.e., largest power output) is predicted for the rectangular bluff body with b/d = 1.0 at a 0° angle of attack. However, its performances are quite dependent on the angle of attack, resulting in a zero-power output for an angle of attack exceeding 4°. A rectangular bluff body with b/d within 1.62 to 2.5 exhibits a reduced energy production compared with b/d = 1.0 at a 0° angle of attack but better robustness varying the angle of attack. Finally, the trapezium and the angle bluff bodies are not suitable for energy harvesting due to their very high onset velocities within the considered range of angles of attack.
Angle of attack, Bluff body configuration, Flow energy harvesting, Transverse galloping
0141-1187
Zhang, Mingjie
9842875e-2f06-4534-9bd4-6300625f99d4
Yu, Haiyan
288aec8c-89d6-407d-8b42-9b116a6fec0e
Yurchenko, Daniil
51a2896b-281e-4977-bb72-5f96e891fbf8
Wang, Junlei
d55dc6d0-734d-46e1-bedd-5ecc18df8702
Xu, Fuyou
35540cf9-d51b-40b1-acbe-5c6dab6e940c
Demartino, Cristoforo
e3f789c0-2c94-471e-a8e0-78d9ecc531d4
Zhang, Mingjie
9842875e-2f06-4534-9bd4-6300625f99d4
Yu, Haiyan
288aec8c-89d6-407d-8b42-9b116a6fec0e
Yurchenko, Daniil
51a2896b-281e-4977-bb72-5f96e891fbf8
Wang, Junlei
d55dc6d0-734d-46e1-bedd-5ecc18df8702
Xu, Fuyou
35540cf9-d51b-40b1-acbe-5c6dab6e940c
Demartino, Cristoforo
e3f789c0-2c94-471e-a8e0-78d9ecc531d4

Zhang, Mingjie, Yu, Haiyan, Yurchenko, Daniil, Wang, Junlei, Xu, Fuyou and Demartino, Cristoforo (2022) Influence of predefined angle of attack on piezoelectric energy harvesting from transverse galloping of different bluff bodies. Applied Ocean Research, 128, [103361]. (doi:10.1016/j.apor.2022.103361).

Record type: Article

Abstract

The development of smart Internet-of-Things (IoT) solutions requires sensor nodes to be placed at different locations of monitored structures. Wireless solutions are quite attractive because of their simplicity although requiring for local energy supply. In this context, this study investigates the influences of the predefined angle of attack on the piezoelectric energy harvesting based on transverse galloping of different bluff bodies. The investigation is based on a lumped electro-aero-mechanical model with linear electrical and mechanical properties and nonlinear aerodynamic forces evaluated using the quasi-steady theory. The performances of energy harvesters with six different bluff bodies are analyzed at various predefined angles of attack: four rectangular cross-sections with different width-to-height ratios (i.e., b/d), one trapezium section, and one equal angle section. The main purpose is to understand the sensitivity of various bluff body-based energy harvesters on the predefined angle of attack, and further suggest a bluff body-based energy harvester that is robust to the predefined angle of attack. The results show that the response is quite dependent on the characteristic of the electro-mechanical system and the bluff body cross-section and angle of attack. In all cases, the load resistance should be tuned to maximize energy production. The largest vibration amplitude (i.e., largest power output) is predicted for the rectangular bluff body with b/d = 1.0 at a 0° angle of attack. However, its performances are quite dependent on the angle of attack, resulting in a zero-power output for an angle of attack exceeding 4°. A rectangular bluff body with b/d within 1.62 to 2.5 exhibits a reduced energy production compared with b/d = 1.0 at a 0° angle of attack but better robustness varying the angle of attack. Finally, the trapezium and the angle bluff bodies are not suitable for energy harvesting due to their very high onset velocities within the considered range of angles of attack.

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Accepted/In Press date: 16 September 2022
e-pub ahead of print date: 7 October 2022
Published date: November 2022
Additional Information: Publisher Copyright: © 2022
Keywords: Angle of attack, Bluff body configuration, Flow energy harvesting, Transverse galloping

Identifiers

Local EPrints ID: 472984
URI: http://eprints.soton.ac.uk/id/eprint/472984
ISSN: 0141-1187
PURE UUID: c948ca5b-e6c2-4aca-aa11-f07700ebbbd1
ORCID for Daniil Yurchenko: ORCID iD orcid.org/0000-0002-4989-3634

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Date deposited: 06 Jan 2023 17:36
Last modified: 17 Mar 2024 07:36

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Contributors

Author: Mingjie Zhang
Author: Haiyan Yu
Author: Daniil Yurchenko ORCID iD
Author: Junlei Wang
Author: Fuyou Xu
Author: Cristoforo Demartino

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