Fragility analysis of wind turbine towers under combined wind and seismic loads considering wind-induced fatigue

IF 4.4 2区工程技术 Q1 ENGINEERING, MECHANICAL

Engineering Failure Analysis Pub Date : 2025-02-28 DOI:10.1016/j.engfailanal.2025.109472

Jia-Xiang Li , Ling-Peng Wang , Zhuo-Qun Zhang , Chao Zhang , Zhi-Qian Dong

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引用次数: 0

Abstract

Wind-induced fatigue damage, which is a crucial factor affecting the lifespan of wind turbine towers, is frequently overlooked in fragility analysis of wind turbine towers. Moreover, the effect of bolt slippage on the mechanical properties of lattice-type wind turbine towers is significant, warranting an investigation into its influence on fatigue damage. This paper establishes a wind-seismic fragility analysis framework for wind turbine towers that incorporates wind-induced fatigue damage calculations. First, historical data on the wind speed and wind direction are collected, and a joint probability model of the wind speed and direction is established by the copula function on the basis of the historical data. The wind-induced fatigue damage of the wind turbine tower is then calculated according to this probability model. Subsequently, in the fragility analysis, the structural performance is adjusted according to the results of the fatigue damage calculations, followed by static pushover analysis and dynamic time-history analysis. Ultimately, fragility surfaces and curves are established. To illustrate the application of the framework, a wind turbine tower is selected as a case study, and bolt slippage is considered in the analysis. Comparative analysis is employed to investigate the impact of bolt slippage on the fatigue damage of wind turbine towers. The results reveal that wind fatigue damage significantly affects the fragility of wind turbine towers under combined wind and earthquake loads. Furthermore, the bolt slippage effect exacerbates fatigue damage to wind turbine towers.

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来源期刊

Engineering Failure Analysis 工程技术-材料科学：表征与测试

CiteScore

7.70

自引率

20.00%

发文量

956

审稿时长

47 days

期刊介绍： Engineering Failure Analysis publishes research papers describing the analysis of engineering failures and related studies. Papers relating to the structure, properties and behaviour of engineering materials are encouraged, particularly those which also involve the detailed application of materials parameters to problems in engineering structures, components and design. In addition to the area of materials engineering, the interacting fields of mechanical, manufacturing, aeronautical, civil, chemical, corrosion and design engineering are considered relevant. Activity should be directed at analysing engineering failures and carrying out research to help reduce the incidences of failures and to extend the operating horizons of engineering materials. Emphasis is placed on the mechanical properties of materials and their behaviour when influenced by structure, process and environment. Metallic, polymeric, ceramic and natural materials are all included and the application of these materials to real engineering situations should be emphasised. The use of a case-study based approach is also encouraged. Engineering Failure Analysis provides essential reference material and critical feedback into the design process thereby contributing to the prevention of engineering failures in the future. All submissions will be subject to peer review from leading experts in the field.