New analysis in the preliminary design for LNG and LPG ships

IF 4 2区工程技术 Q1 ENGINEERING, CIVIL

Marine Structures Pub Date : 2025-07-14 DOI:10.1016/j.marstruc.2025.103863

Mariano Marcos-Pérez , Javier Jiménez de la Jara , Daniel Precioso , Aurelio Muñoz , M. Victoria Redondo-Neble , David Gómez-Ullate

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Abstract

In recent years, the production of LNG and LPG ships has increased, driven by the increasing demand for natural and petroleum gases. To meet this demand, ship designs must be optimized at all stages, requiring designers to have advanced, efficient and accurate design tools. This study presents new statistical and regression analyses of data extracted from the Hyundai Heavy Industries Shipbuilding Group catalogue which includes information on LNG and LPG ships built between 1979 and 2023. The database includes 145 LNG carriers and 322 LPG carriers, representing approximately 20% of the global gas carrier fleet. Simple and multiple regression analyses were used to estimate dependent variables and their correlation to other ship parameters. In addition, Machine Learning algorithms were trained and compared against these traditional methods. This study provides updated tools to support the preliminary design of LNG and LPG ships, enhancing the understanding and accuracy of early-stage design decisions.

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LNG和LPG船舶初步设计中的新分析

近年来，由于对天然气和石油天然气的需求不断增加，液化天然气和液化石油气船舶的产量有所增加。为了满足这一需求，船舶设计必须在各个阶段进行优化，这就要求设计人员拥有先进、高效和准确的设计工具。该研究对现代重工造船集团目录中提取的数据进行了新的统计和回归分析，其中包括1979年至2023年间建造的液化天然气和液化石油气船舶的信息。该数据库包括145艘液化天然气运输船和322艘液化石油气运输船，约占全球天然气运输船船队的20%。采用简单回归分析和多元回归分析来估计因变量及其与其他船舶参数的相关性。此外，机器学习算法进行了训练，并与这些传统方法进行了比较。本研究为支持LNG和LPG船舶的初步设计提供了更新的工具，提高了对早期设计决策的理解和准确性。

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来源期刊

Marine Structures 工程技术-工程：海洋

CiteScore

8.70

自引率

7.70%

发文量

157

审稿时长

6.4 months

期刊介绍： This journal aims to provide a medium for presentation and discussion of the latest developments in research, design, fabrication and in-service experience relating to marine structures, i.e., all structures of steel, concrete, light alloy or composite construction having an interface with the sea, including ships, fixed and mobile offshore platforms, submarine and submersibles, pipelines, subsea systems for shallow and deep ocean operations and coastal structures such as piers.