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Publishing Language: Chinese

Dynamic simulation of ship fender structure anti-collision

Yi HU1, Shifeng DING1( ), Li ZHOU1, Wenqian BAO2, Ligang ZHAO2
School of Naval Architecture and Ocean engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
Marine Design and Research Institute of China, Shanghai 200011, China
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Abstract

Objectives

This study aims to investigate the dynamic coupling effect of "hull-fender-dock" during ship berthing.

Methods

Using the nonlinear finite element method, a port side and fender structure finite element model is established to simulate the dynamic evolution of speed, stress and energy during ship berthing.

Results

The results show that when the fender makes contact with the dock, the ship's speed decreases to zero and the dynamic deformation and interaction force of the fender structure are at their maximum. When the ship is berthing, the fender shows strong energy absorption capacity, accounting for about 70% of the initial total kinetic energy of the ship, and the hull structure is well protected.

Conclusions

Further analysis indicates that, with the improvement of the initial berthing speed, port protection efficiency shows a decreasing trend. The ultimate berthing speed of the target ship of this study is 2.5 kn, and the recommended safe berthing speed is 2 kn. The results of this study can be used as a reference for ship berthing speed limits and hull structure energy absorption design.

Keywords

ship collisionside structureenergy conversionnumerical simulation
CLC number: U661.73 Document code: A

References

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Chinese Journal of Ship Research
Volume 17 Issue 6,
December 2022
Pages 261-270
DOI: 10.19693/j.issn.1673-3185.02421

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Cite this article:
HU Y, DING S, ZHOU L, et al. Dynamic simulation of ship fender structure anti-collision. Chinese Journal of Ship Research, 2022, 17(6): 261-270. https://doi.org/10.19693/j.issn.1673-3185.02421

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Received: 20 June 2021
Revised: 14 August 2021
Published: 13 September 2022
© 2022 Chinese Journal of Ship Research.