针对破冰船冰致振动噪声冲击载荷分析难题，基于ALE算法模拟破冰船典型破冰动态过程。采用内河破冰船验证分析方法的有效性，探究了连续式破冰和冲撞式破冰工况下冲击载荷特性，揭示破冰冲击载荷影响机制。结果表明，连续式破冰过程中，冰层存在弯曲破坏、挤压破坏及剪切破坏3种破坏模式，冰致冲击载荷主要集中在0～20 Hz范围内；冲撞式破冰初始阶段船速较高，冰层破坏模式以弯曲破坏为主，随着破冰速度逐渐减小，破坏模式逐渐转变为挤压破坏。
Aiming at the problem of icebreaker ice-induced vibration and noise impact load analysis, The typical icebreaking dynamic process of icebreaker is simulated based on the ALE algorithm. The effectiveness of the analysis method is verified by the inland icebreaker, and the impact load characteristics of continuous icebreaking and collision icebreaking are explored, and the influence mechanism of icebreaking impact load is revealed. The results show that in the process of continuous icebreaking, there are three failure modes of the ice layer: bending failure, extrusion failure and shear failure, and the ice-induced impact load is mainly concentrated in the range of 0~20 Hz; the ship speed is high in the initial stage of collision icebreaking, and the ice failure mode is mainly bending failure, and with the gradual decrease of icebreaking speed, the failure mode gradually changes to extrusion failure.
2025,47(12): 24-29 收稿日期：2024-6-21
DOI：10.3404/j.issn.1672-7649.2025.12.005
分类号：U674.21
基金项目：黑龙江省自然科学基金资助项目（YQ2023E035）
作者简介：徐义刚(1987-),男,硕士,高级工程师,研究方向为船舶结构
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