Effects of pectoral fins' spanwise flexibility on forward thrust generation

Soheil Arastehfar; Gunawan Gunawan; Khoon Seng Yeo; Chee Meng Chew

doi:10.1109/ROBIO.2017.8324403

Effects of pectoral fins' spanwise flexibility on forward thrust generation

Soheil Arastehfar, Gunawan Gunawan, Khoon Seng Yeo, Chee Meng Chew

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

6 Citations (Scopus)

Abstract

Pectoral fins of manta rays have been a great source of inspiration for propulsive mechanism of underwater vehicles in the last decade. In the existing literature, effects of the chordwise flexibility of these fins on the forward thrust generation has been widely studied, while the study on the spanwise flexibility is considerably lacking. In this paper, we aim to investigate the effects of the fins' spanwise flexibility (quantified by bending stiffness) on the forward thrust generation. An experiment was conducted in a water channel to measure the forward thrust generated by 16 fins under free stream condition (0.5 m/s). The fins' bending stiffness ranged from 0.018 N/mm to 0.499 N/mm. All the fins had the same span length and surface area in order to preserve the hydrodynamic integrity of the experiment. The experimental results showed that for the range of the spanwise flexibility considered in this study, the forward thrust generation increases by decreasing the fins' spanwise flexibility until a certain bending stiffness value. After that the rate of the change in the thrust generation becomes very minor, indicating a plateau region.

Original language	English
Title of host publication	2017 IEEE International Conference on Robotics and Biomimetics, ROBIO 2017
Place of Publication	Piscataway, NJ
Publisher	IEEE
Pages	110-115
Number of pages	6
ISBN (Electronic)	978-1-5386-3742-5, 978-1-5386-3741-8
ISBN (Print)	978-1-5386-3743-2
DOIs	https://doi.org/10.1109/ROBIO.2017.8324403
Publication status	Published - 23 Mar 2018
Externally published	Yes
Event	2017 IEEE International Conference on Robotics and Biomimetics, ROBIO 2017 - Macau, China Duration: 5 Dec 2017 → 8 Dec 2017

Conference

Conference	2017 IEEE International Conference on Robotics and Biomimetics, ROBIO 2017
Country/Territory	China
City	Macau
Period	5/12/17 → 8/12/17

Keywords

Bending stiffness
Bio-inspired
Forward thrust
Manta ray
Oscillatory pectoral fins
Spanwise flexibility

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10.1109/ROBIO.2017.8324403

Cite this

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title = "Effects of pectoral fins' spanwise flexibility on forward thrust generation",

abstract = "Pectoral fins of manta rays have been a great source of inspiration for propulsive mechanism of underwater vehicles in the last decade. In the existing literature, effects of the chordwise flexibility of these fins on the forward thrust generation has been widely studied, while the study on the spanwise flexibility is considerably lacking. In this paper, we aim to investigate the effects of the fins' spanwise flexibility (quantified by bending stiffness) on the forward thrust generation. An experiment was conducted in a water channel to measure the forward thrust generated by 16 fins under free stream condition (0.5 m/s). The fins' bending stiffness ranged from 0.018 N/mm to 0.499 N/mm. All the fins had the same span length and surface area in order to preserve the hydrodynamic integrity of the experiment. The experimental results showed that for the range of the spanwise flexibility considered in this study, the forward thrust generation increases by decreasing the fins' spanwise flexibility until a certain bending stiffness value. After that the rate of the change in the thrust generation becomes very minor, indicating a plateau region.",

keywords = "Bending stiffness, Bio-inspired, Forward thrust, Manta ray, Oscillatory pectoral fins, Spanwise flexibility",

author = "Soheil Arastehfar and Gunawan Gunawan and Yeo, {Khoon Seng} and Chew, {Chee Meng}",

year = "2018",

month = mar,

day = "23",

doi = "10.1109/ROBIO.2017.8324403",

language = "English",

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booktitle = "2017 IEEE International Conference on Robotics and Biomimetics, ROBIO 2017",

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Arastehfar, S, Gunawan, G, Yeo, KS & Chew, CM 2018, Effects of pectoral fins' spanwise flexibility on forward thrust generation. in 2017 IEEE International Conference on Robotics and Biomimetics, ROBIO 2017. IEEE, Piscataway, NJ, pp. 110-115, 2017 IEEE International Conference on Robotics and Biomimetics, ROBIO 2017, Macau, China, 5/12/17. https://doi.org/10.1109/ROBIO.2017.8324403

Effects of pectoral fins' spanwise flexibility on forward thrust generation. / Arastehfar, Soheil; Gunawan, Gunawan; Yeo, Khoon Seng et al.
2017 IEEE International Conference on Robotics and Biomimetics, ROBIO 2017. Piscataway, NJ: IEEE, 2018. p. 110-115.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Effects of pectoral fins' spanwise flexibility on forward thrust generation

AU - Arastehfar, Soheil

AU - Gunawan, Gunawan

AU - Yeo, Khoon Seng

AU - Chew, Chee Meng

PY - 2018/3/23

Y1 - 2018/3/23

N2 - Pectoral fins of manta rays have been a great source of inspiration for propulsive mechanism of underwater vehicles in the last decade. In the existing literature, effects of the chordwise flexibility of these fins on the forward thrust generation has been widely studied, while the study on the spanwise flexibility is considerably lacking. In this paper, we aim to investigate the effects of the fins' spanwise flexibility (quantified by bending stiffness) on the forward thrust generation. An experiment was conducted in a water channel to measure the forward thrust generated by 16 fins under free stream condition (0.5 m/s). The fins' bending stiffness ranged from 0.018 N/mm to 0.499 N/mm. All the fins had the same span length and surface area in order to preserve the hydrodynamic integrity of the experiment. The experimental results showed that for the range of the spanwise flexibility considered in this study, the forward thrust generation increases by decreasing the fins' spanwise flexibility until a certain bending stiffness value. After that the rate of the change in the thrust generation becomes very minor, indicating a plateau region.

AB - Pectoral fins of manta rays have been a great source of inspiration for propulsive mechanism of underwater vehicles in the last decade. In the existing literature, effects of the chordwise flexibility of these fins on the forward thrust generation has been widely studied, while the study on the spanwise flexibility is considerably lacking. In this paper, we aim to investigate the effects of the fins' spanwise flexibility (quantified by bending stiffness) on the forward thrust generation. An experiment was conducted in a water channel to measure the forward thrust generated by 16 fins under free stream condition (0.5 m/s). The fins' bending stiffness ranged from 0.018 N/mm to 0.499 N/mm. All the fins had the same span length and surface area in order to preserve the hydrodynamic integrity of the experiment. The experimental results showed that for the range of the spanwise flexibility considered in this study, the forward thrust generation increases by decreasing the fins' spanwise flexibility until a certain bending stiffness value. After that the rate of the change in the thrust generation becomes very minor, indicating a plateau region.

KW - Bending stiffness

KW - Bio-inspired

KW - Forward thrust

KW - Manta ray

KW - Oscillatory pectoral fins

KW - Spanwise flexibility

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DO - 10.1109/ROBIO.2017.8324403

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BT - 2017 IEEE International Conference on Robotics and Biomimetics, ROBIO 2017

PB - IEEE

CY - Piscataway, NJ

T2 - 2017 IEEE International Conference on Robotics and Biomimetics, ROBIO 2017

Y2 - 5 December 2017 through 8 December 2017

ER -

Effects of pectoral fins' spanwise flexibility on forward thrust generation

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Keywords

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