Shape Optimization for A Conventional Underwater Glider to Decrease Average Periodic Resistance

Jing lu Li; Xin jing Wang; Peng Wang; Hua chao Dong; Cai hua Chen

doi:10.1007/s13344-021-0064-6

Shape Optimization for A Conventional Underwater Glider to Decrease Average Periodic Resistance

Jing lu Li, Xin jing Wang, Peng Wang, Hua chao Dong, Cai hua Chen

School of Marine Science and Technology

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

As a type of autonomous underwater vehicle (AUV), underwater gliders (UG) are getting increasing attention in ocean exploration. To save energy and satisfy the mission requirements of a longer voyage, shape optimization for UGs has become a key technique and research focus. In this paper, a conventional UG, including its fuselage and hydrofoil, is optimized, which aims to decrease the average resistance in one motion cycle. To operate the optimization progress for the complex object, multiple free form deformation (FFD) volumes are established for geometric parameterization. High-fidelity simulation models are employed for objective function evaluation and gradients calculation. And sequential quadratic programming (SQP) method is adopted as an optimization algorithm. The optimization results show that there exists a UG with symmetrical and non-horizontal hydrofoils that has lower resistance.

Original language	English
Pages (from-to)	724-735
Number of pages	12
Journal	China Ocean Engineering
Volume	35
Issue number	5
DOIs	https://doi.org/10.1007/s13344-021-0064-6
State	Published - Sep 2021

Keywords

conventional configuration
free form deformation
shape optimization
underwater glider

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1007/s13344-021-0064-6

Cite this

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title = "Shape Optimization for A Conventional Underwater Glider to Decrease Average Periodic Resistance",

abstract = "As a type of autonomous underwater vehicle (AUV), underwater gliders (UG) are getting increasing attention in ocean exploration. To save energy and satisfy the mission requirements of a longer voyage, shape optimization for UGs has become a key technique and research focus. In this paper, a conventional UG, including its fuselage and hydrofoil, is optimized, which aims to decrease the average resistance in one motion cycle. To operate the optimization progress for the complex object, multiple free form deformation (FFD) volumes are established for geometric parameterization. High-fidelity simulation models are employed for objective function evaluation and gradients calculation. And sequential quadratic programming (SQP) method is adopted as an optimization algorithm. The optimization results show that there exists a UG with symmetrical and non-horizontal hydrofoils that has lower resistance.",

keywords = "conventional configuration, free form deformation, shape optimization, underwater glider",

author = "Li, {Jing lu} and Wang, {Xin jing} and Peng Wang and Dong, {Hua chao} and Chen, {Cai hua}",

note = "Publisher Copyright: {\textcopyright} 2021, Chinese Ocean Engineering Society and Springer-Verlag GmbH Germany, part of Springer Nature.",

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AU - Li, Jing lu

AU - Wang, Xin jing

AU - Wang, Peng

AU - Dong, Hua chao

AU - Chen, Cai hua

PY - 2021/9

Y1 - 2021/9

N2 - As a type of autonomous underwater vehicle (AUV), underwater gliders (UG) are getting increasing attention in ocean exploration. To save energy and satisfy the mission requirements of a longer voyage, shape optimization for UGs has become a key technique and research focus. In this paper, a conventional UG, including its fuselage and hydrofoil, is optimized, which aims to decrease the average resistance in one motion cycle. To operate the optimization progress for the complex object, multiple free form deformation (FFD) volumes are established for geometric parameterization. High-fidelity simulation models are employed for objective function evaluation and gradients calculation. And sequential quadratic programming (SQP) method is adopted as an optimization algorithm. The optimization results show that there exists a UG with symmetrical and non-horizontal hydrofoils that has lower resistance.

AB - As a type of autonomous underwater vehicle (AUV), underwater gliders (UG) are getting increasing attention in ocean exploration. To save energy and satisfy the mission requirements of a longer voyage, shape optimization for UGs has become a key technique and research focus. In this paper, a conventional UG, including its fuselage and hydrofoil, is optimized, which aims to decrease the average resistance in one motion cycle. To operate the optimization progress for the complex object, multiple free form deformation (FFD) volumes are established for geometric parameterization. High-fidelity simulation models are employed for objective function evaluation and gradients calculation. And sequential quadratic programming (SQP) method is adopted as an optimization algorithm. The optimization results show that there exists a UG with symmetrical and non-horizontal hydrofoils that has lower resistance.

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Shape Optimization for A Conventional Underwater Glider to Decrease Average Periodic Resistance

Abstract

Keywords

UN SDGs

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