Soil-monopile interaction assessment of offshore wind turbines with comprehensive subsurface modelling to earthquake and environmental loads of wind and wave

IF 4.6 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering Pub Date : 2025-02-13 DOI:10.1016/j.soildyn.2025.109293

Faruk Elmas, Halil Murat Algin

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引用次数: 0

Abstract

The dynamic soil-structure interaction characteristics of MOWTs (monopile offshore wind turbines) constructed in complex ground conditions, including three-dimensional (3D) geomorphological variation, change of faults and geomorphological deformation, was investigated first time in literature with the presented paper using the finite element (FE) analyses. The FE models are built utilizing the robust image processing technique based on the data obtained from seismic profile field survey to incorporate complex sedimentological and seismostratigraphical evidences. In the 3D FE analyses the hypoplastic constitutive model is considered. The validation is carried out by comparing the results of the simulation with the literature. The soil-monopile-turbine interaction behaviour based on the non-linear time history responses under bilateral seismic excitation and environmental loads of wind and wave are investigated. It is concluded that dynamic response of the monopile system and soil-monopile-turbine interactions are significantly influenced by geomorphological subsurface variations. It is thus critical to take into account the 3D variations of sedimentological faults and deformations as identified through the seismic field survey in the context of 3D FE analyses.

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基于地震和风浪环境荷载综合地下模拟的海上风力发电机土-单桩相互作用评估

本文首次采用有限元方法研究了复杂地面条件下单桩海上风力发电机组的土-结构动力相互作用特征，包括三维地貌变化、断层变化和地貌变形。利用鲁棒图像处理技术，结合复杂的沉积学和地震地层学证据，建立了基于地震剖面野外调查数据的有限元模型。在三维有限元分析中，考虑了发育不良本构模型。通过将仿真结果与文献进行比较，验证了该方法的有效性。研究了基于非线性时程响应的土-单桩-水轮机在双侧地震激励和环境风浪荷载作用下的相互作用特性。结果表明，地下地貌变化对单桩系统的动力响应和土壤-单桩-水轮机相互作用有显著影响。因此，在三维有限元分析的背景下，考虑通过地震现场调查确定的沉积断裂和变形的三维变化是至关重要的。

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

Soil Dynamics and Earthquake Engineering 工程技术-地球科学综合

CiteScore

7.50

自引率

15.00%

发文量

446

审稿时长

8 months

期刊介绍： The journal aims to encourage and enhance the role of mechanics and other disciplines as they relate to earthquake engineering by providing opportunities for the publication of the work of applied mathematicians, engineers and other applied scientists involved in solving problems closely related to the field of earthquake engineering and geotechnical earthquake engineering. Emphasis is placed on new concepts and techniques, but case histories will also be published if they enhance the presentation and understanding of new technical concepts.