Ship bow impact force in head-on collision

IF 5.1 2区工程技术 Q1 ENGINEERING, CIVIL

Marine Structures Pub Date : 2025-09-12 DOI:10.1016/j.marstruc.2025.103940

Shengming Zhang , Preben Terndrup Pedersen

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Abstract

This paper presents simplified analysis procedures for ship (with bulbous bow) bow impact force and bow damage assessment in ship head-on collisions. The theoretical background for ship bow crushing analysis is described and the result is expressions for the crushing force and bow damage as a function of an impact strength. The impact strength, depending on the internal stiffening of the ship bow and materials, is determined by two different approaches: Approach A- uses world-wide published experimental model test data; Approach B- uses theoretical calculation results from crushing analyses of full-scale sea-going ships. Applying these data for the impact strength into the theory, formulas for bow impact forces and bow damages are developed. The formulations are compared with published existing methods and validated with the data from full-scale ship collision accidents and FEA simulation results. The developed procedure has a sound physical foundation and can be used as a tool in risk analyses of ship-ship collisions, ship collisions against offshore structures such as oil and gas installations and windfarms, and bridge structures.

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船艏正面碰撞时的冲击力

本文给出了球首船舶正面碰撞中船首冲击力和船首损伤评估的简化分析方法。阐述了船首破碎分析的理论背景，给出了破碎力和船首损伤随冲击强度的函数表达式。冲击强度取决于船首和材料的内部加强程度，由两种不同的方法确定：方法A-使用世界范围内公布的实验模型测试数据；方法B-采用全尺寸海船破碎分析的理论计算结果。将这些冲击强度数据应用到理论中，建立了弓的冲击力和弓的损伤计算公式。将这些公式与已有的方法进行了比较，并用实际船舶碰撞事故数据和有限元模拟结果进行了验证。所开发的程序具有良好的物理基础，可作为船舶碰撞风险分析工具，用于船舶与海上结构（如石油和天然气设施、风力发电场和桥梁结构）的碰撞。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.