A model test method of monopile-type offshore wind turbines subjected to floating ice

IF 6.6 1区工程技术 Q1 ENGINEERING, CIVIL Thin-Walled Structures Pub Date : 2025-06-01 Epub Date: 2025-02-15 DOI:10.1016/j.tws.2025.113095

Yingzhou Liu , Wei Shi , Jijian Lian , Xin Li , Ye Yao , Constantine Michailides , Li Zhou , Peng Lu

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引用次数: 0

Abstract

Assessing ice-induced vibration is critical in determining safe operation of offshore wind turbines (OWT). However, there is currently a lack of dynamic model experimental method of the fully coupled elastic OWT under combined wind-ice loadings. In the present paper results derived from an ice-monopile-type OWT interaction experimental campaign are presented. Aiming at the mismatch of traditional similar criteria caused by the two scale effects, an 1/75 scale monopile-type OWT physical model has been constructed based on the dynamic ice force similarity criterion which is proposed within the present paper, and model ice is fabricated and verified. Furthermore, the corresponding ice dynamic testing technology is proposed by utilizing fiber grating dynamic ice force sensors, and the wind-ice simultaneous loading simulation test system is developed and used during tests for typical operational and parked states of the OWT. Ice typical failure modes, as well as, the ice-induced vibration response characteristics of OWT structures during the interaction between sea ice and monopile are revealed. We show that the proposed dynamic model test technology of the aerodynamic-ice dynamics-elastic coupled wind turbine can be effectively used as a experimental solution for evaluating the dynamic ice force and revealing the ice-induced vibration mechanism of OWTs.

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浮冰作用下单桩式海上风力发电机模型试验方法

评估冰激振动是确定海上风力发电机组安全运行的关键。然而，目前还缺乏风-冰联合荷载作用下全耦合弹性水轮机的动力模型试验方法。本文介绍了冰-单堆型OWT相互作用实验的结果。针对两种尺度效应导致传统相似准则不匹配的问题，基于本文提出的冰动力相似准则，构建了1/75尺度单桩型OWT物理模型，并对模型冰进行了制作和验证。在此基础上，提出了利用光纤光栅动态冰力传感器进行冰动力测试的相应技术，开发了风-冰同步加载模拟测试系统，并在典型运行和停放状态下进行了测试。揭示了海冰与单桩相互作用下OWT结构的冰激振动响应特征和典型破坏模式。结果表明，本文提出的气动-冰动力-弹性耦合风力机动力模型试验技术可以有效地作为评估风轮机动力冰力和揭示风轮机冰激振动机理的实验解决方案。

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.