基于LS-Dyna数值仿真软件，以双模块超大型浮体结构为研究对象，开展油轮与双模块超大型浮体结构发生碰撞的数值仿真分析。数值仿真中碰撞场景为邮轮撞击模块中部结构，材料模型采用线性强化弹塑性模型，并计入应变速率引起的材料强化，考虑碰撞发生时的接触及摩擦。通过本文的研究，获得了双模块超大型浮体结构变形及损伤规律，讨论了结构的吸能特性和运动规律等，可为超大型浮体结构的耐撞性设计提供参考。
Based on LS-Dyna numerical simulation software, the two module very large floating structure (VLFS) as the research object, to carry out oil tanker with single module VLFS collision numerical simulation analysis, which uses the linear strengthening elastic-plastic material model, and included in the rate of strain caused by material aggrandizement, considering collision contact and friction. Through the research in this paper, the influence regulation of different impact angles on the deformation and damage of the single module VLFS was obtained, and the energy absorption characteristics and movement regulation of structure were discussed, providing a reference for the design of the collision resistance of the ultra-large floating body structure.
2021,43(12): 50-54 收稿日期：2021-06-09
DOI：10.3404/j.issn.1672-7649.2021.12.009
分类号：U661.4
基金项目：江苏省高职院校青年教师企业实践培训项目资助（2020QYSJ135）
作者简介：周萍(1985-),女,硕士,讲师,研究方向为船体结构强度
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