Hydrodynamic and Vibroacoustic Simulation Analysis of the Main Float in an Acoustic Submerged Buoy System

Liu, Jie; Jiang, Zixuan; Du, Libin; Lv, Zhichao; Cui, Hanbing; Li, Xinyu; Liang, Guangxin

doi:10.3390/jmse13071254

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Open AccessArticle

Hydrodynamic and Vibroacoustic Simulation Analysis of the Main Float in an Acoustic Submerged Buoy System

by

Jie Liu

,

Zixuan Jiang

,

Libin Du

^*,

Zhichao Lv

,

Hanbing Cui

,

Xinyu Li

and

Guangxin Liang

College of Ocean Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China

^*

Author to whom correspondence should be addressed.

J. Mar. Sci. Eng. 2025, 13(7), 1254; https://doi.org/10.3390/jmse13071254

Submission received: 17 May 2025 / Revised: 21 June 2025 / Accepted: 26 June 2025 / Published: 28 June 2025

(This article belongs to the Special Issue Hydrodynamic Research of Marine Structures (2nd Edition))

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Abstract

During prolonged deployment, deep-sea acoustic submerged buoys may undergo displacement and torsional deformation of their main floating body under turbulent flows, which degrades the quality of acquired sensor data and introduces vibration-induced noise that interferes with acoustic measurements. This paper presents a novel structural design for acoustic buoy main bodies based on hydrodynamic principles. We performed fluid-structure interaction (FSI) simulations to evaluate the dynamic response characteristics of the structure in deep-sea conditions, including computational analysis of velocity and pressure field distributions surrounding the buoy. Leveraging pressure data derived from computational fluid dynamics (CFD) simulations, we developed an innovative vibration noise quantification methodology. This approach employs plane wave excitation with equivalent pressure magnitude to simulate hydrodynamic loading effects while incorporating tripartite coupling mechanisms among fluid, structural, and acoustic domains. The simulated vibration noise profiles establish environmental baseline noise levels for onboard acoustic monitoring instruments, thereby enhancing measurement fidelity.

Keywords: acoustic submerged buoy; fluid-structure interaction; flow vibration noise

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MDPI and ACS Style

Liu, J.; Jiang, Z.; Du, L.; Lv, Z.; Cui, H.; Li, X.; Liang, G. Hydrodynamic and Vibroacoustic Simulation Analysis of the Main Float in an Acoustic Submerged Buoy System. J. Mar. Sci. Eng. 2025, 13, 1254. https://doi.org/10.3390/jmse13071254

AMA Style

Liu J, Jiang Z, Du L, Lv Z, Cui H, Li X, Liang G. Hydrodynamic and Vibroacoustic Simulation Analysis of the Main Float in an Acoustic Submerged Buoy System. Journal of Marine Science and Engineering. 2025; 13(7):1254. https://doi.org/10.3390/jmse13071254

Chicago/Turabian Style

Liu, Jie, Zixuan Jiang, Libin Du, Zhichao Lv, Hanbing Cui, Xinyu Li, and Guangxin Liang. 2025. "Hydrodynamic and Vibroacoustic Simulation Analysis of the Main Float in an Acoustic Submerged Buoy System" Journal of Marine Science and Engineering 13, no. 7: 1254. https://doi.org/10.3390/jmse13071254

APA Style

Liu, J., Jiang, Z., Du, L., Lv, Z., Cui, H., Li, X., & Liang, G. (2025). Hydrodynamic and Vibroacoustic Simulation Analysis of the Main Float in an Acoustic Submerged Buoy System. Journal of Marine Science and Engineering, 13(7), 1254. https://doi.org/10.3390/jmse13071254

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Hydrodynamic and Vibroacoustic Simulation Analysis of the Main Float in an Acoustic Submerged Buoy System

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