Optimization of ballast adjustment for refloating a grounded ship with PSO algorithm

YE Ya-long

doi:10.3969/j.issn.1000-4653.2023.02.017

Navigation of China > 2023 > 46(2): 120-124,134. > DOI: 10.3969/j.issn.1000-4653.2023.02.017

YE Ya-long. Optimization of ballast adjustment for refloating a grounded ship with PSO algorithm[J]. Navigation of China, 2023, 46(2): 120-124,134. DOI: 10.3969/j.issn.1000-4653.2023.02.017

Citation:

YE Ya-long. Optimization of ballast adjustment for refloating a grounded ship with PSO algorithm[J]. Navigation of China, 2023, 46(2): 120-124,134. DOI: 10.3969/j.issn.1000-4653.2023.02.017

Citation:

YE Ya-long. Optimization of ballast adjustment for refloating a grounded ship with PSO algorithm[J]. Navigation of China, 2023, 46(2): 120-124,134. DOI: 10.3969/j.issn.1000-4653.2023.02.017

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Optimization of ballast adjustment for refloating a grounded ship with PSO algorithm

YE Ya-long

Yantai Salvage Bureau, Yantai 264000, China

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Received Date: February 06, 2022

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Abstract

Abstract

The particle swarm optimization algorithm（PSO） is introduced into the ballast adjustment calculation for refloating a grounded ship, which allows the design of the adjustment plan to get rid of trial-and-error experiments. A theoretic model of grounding force on ship is built. The GHS software is used as the stability resolver. The optimal ballast in every hold（cargo tank） is decided by PSO algorithm for minimum grounding force on the ship. The volumes of ballast in holds（cargo tanks）, as the optimized factors, are fed to GHS software for stability checking via a Python program. Through iteration of the series of calculation, the ballast scheme for minimum grounding force is generated. This method was used for refloating the oil tanker “Dixiang” successfully.
- grounded ship,
- refloating of grounded ship,
- grounding force,
- ballast,
- PSO

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References

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Optimization of ballast adjustment for refloating a grounded ship with PSO algorithm