楔形船艏舷侧撞击场景下甲板结构损伤预报解析方法研究

周家有1,2,赵延杰3,4,张伦平3,4,张一弛1,2,袁昱超1,2,唐文勇1,2

振动与冲击 ›› 2023, Vol. 42 ›› Issue (23) : 41-48.

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PDF(2943 KB)
振动与冲击 ›› 2023, Vol. 42 ›› Issue (23) : 41-48.
论文

楔形船艏舷侧撞击场景下甲板结构损伤预报解析方法研究

  • 周家有1,2,赵延杰3,4,张伦平3,4,张一弛1,2,袁昱超1,2,唐文勇1,2
作者信息 +

Analytical method for predicting deck structure damage in scenarios of ship side impacted by wedge shaped bow

  • ZHOU Jiayou1,2,ZHAO Yanjie3,4,ZHANG Lunping3,4,ZHANG Yichi1,2,YUAN Yuchao1,2,TANG Wenyong1,2
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文章历史 +

摘要

碰撞事故是威胁船舶海上航行安全的重要隐患之一,同时,碰撞后结构损伤的快速预报方法研究对于船舶抗撞性能设计与优化具有重要意义。本文研究了单层壳船体舷侧结构遭受楔形船艏大撞深、多角度碰撞场景下甲板结构的损伤变形机理。根据其结构变形模式,将甲板结构划分为四类构件并建立了各构件对应变形模式的简化理论模型,基于上限定理推导了结构抗力解析公式。该方法考虑了构件碰撞过程中的多模式损伤演化及不同构件变形时的耦合作用。通过多个碰撞场景的对比验证,本文新提出的解析方法与数值对比结果良好。研究成果对大撞深、多角度碰撞场景下甲板结构损伤评估具有较高工程应用价值。

Abstract

Ship collision accidents are considered to be one of the most severe potential hazards for the safe navigation. Developing rapid prediction methods for ship collision analysis is of great significance for the crashworthiness design and optimization. This paper studies the deformation mechanisms of the deck structure of a single-hulled vessel under the large indentation and oblique collision scenarios by a raked bow. According to the observed structural deformation modes, the deck structure is divided into four types of members. Simplified theoretical models are established for the corresponding deformation modes of these members. The analytical formulae of structural resistance are further derived based on the upper bound theorem. The method considers the evolution of two types of deformation modes and the coupling effects of different component during the collision process. Through the comparisons of several collision scenarios for verification, it is found that the results from the newly developed analytical method agree well with the numerical results. The research outcomes could highly benefit the engineering application for the damage assessment of deck structures under head-on and oblique collision scenarios with large impact indentation.

关键词

船舶斜撞 / 楔形艏 / 耦合效应 / 解析计算 / 数值仿真

Key words

oblique ship collision / raked bow / coupling effect / analytical method / numerical simulation

引用本文

导出引用
周家有1,2,赵延杰3,4,张伦平3,4,张一弛1,2,袁昱超1,2,唐文勇1,2. 楔形船艏舷侧撞击场景下甲板结构损伤预报解析方法研究[J]. 振动与冲击, 2023, 42(23): 41-48
ZHOU Jiayou1,2,ZHAO Yanjie3,4,ZHANG Lunping3,4,ZHANG Yichi1,2,YUAN Yuchao1,2,TANG Wenyong1,2. Analytical method for predicting deck structure damage in scenarios of ship side impacted by wedge shaped bow[J]. Journal of Vibration and Shock, 2023, 42(23): 41-48

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