Numerical study on crashworthiness of monopile-supported offshore wind turbine due to iceberg considering fluid-structure interaction

IF 3 2区生物学 Q1 MARINE & FRESHWATER BIOLOGY

Frontiers in Marine Science Pub Date : 2026-04-27 DOI:10.3389/fmars.2026.1826951

Ruoxuan Li, Mengyao Xing, Zhi-Xin Xiong

引用次数: 0

Abstract

As offshore wind energy expands into cold-region waters, offshore wind turbines (OWTs) are increasingly exposed to ice-structure interaction. In this study, a three-dimensional fluid-structure interaction (FSI) model was developed in LS-DYNA to simulate the dynamic response of a typical 5 MW monopile-supported OWT subjected to ice impact. The model explicitly accounts for coupled interactions among ice, water, and structure. A systematic parametric study was conducted to explain the effects of ice speed, shape, size, and immersion ratio on the peak impact force, structural energy absorption, local indentation depth, and tower-top acceleration and displacement responses. The response metrics were normalized to conduct a sensitivity analysis. The overall results indicate that ice speed has the greatest influence on the structural response, followed by ice shape, ice size, and the immersion ratio. These findings help improve the understanding of the ice-structure impact mechanism.

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考虑流固耦合的单桩支撑海上风力机冰山耐撞性数值研究

随着海上风能扩展到寒冷地区水域，海上风力涡轮机（OWTs）越来越多地暴露于冰结构相互作用中。在LS-DYNA中建立了三维流固耦合（FSI）模型，模拟了典型5mw单桩支撑OWT在冰冲击作用下的动力响应。该模型明确地解释了冰、水和结构之间的耦合相互作用。通过系统的参数研究，解释了冰速、形状、尺寸和浸泡比对峰值冲击力、结构能量吸收、局部压痕深度以及塔顶加速度和位移响应的影响。将反应指标归一化以进行敏感性分析。总体结果表明，冰速对结构响应的影响最大，其次是冰形、冰尺寸和浸泡比。这些发现有助于提高对冰结构撞击机制的理解。

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

Frontiers in Marine Science Agricultural and Biological Sciences-Aquatic Science

CiteScore

5.10

自引率

16.20%

发文量

2443

审稿时长

14 weeks

期刊介绍： Frontiers in Marine Science publishes rigorously peer-reviewed research that advances our understanding of all aspects of the environment, biology, ecosystem functioning and human interactions with the oceans. Field Chief Editor Carlos M. Duarte at King Abdullah University of Science and Technology Thuwal is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, policy makers and the public worldwide. With the human population predicted to reach 9 billion people by 2050, it is clear that traditional land resources will not suffice to meet the demand for food or energy, required to support high-quality livelihoods. As a result, the oceans are emerging as a source of untapped assets, with new innovative industries, such as aquaculture, marine biotechnology, marine energy and deep-sea mining growing rapidly under a new era characterized by rapid growth of a blue, ocean-based economy. The sustainability of the blue economy is closely dependent on our knowledge about how to mitigate the impacts of the multiple pressures on the ocean ecosystem associated with the increased scale and diversification of industry operations in the ocean and global human pressures on the environment. Therefore, Frontiers in Marine Science particularly welcomes the communication of research outcomes addressing ocean-based solutions for the emerging challenges, including improved forecasting and observational capacities, understanding biodiversity and ecosystem problems, locally and globally, effective management strategies to maintain ocean health, and an improved capacity to sustainably derive resources from the oceans.