Special cases in fatigue analysis of wind turbines

IF 1.3 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY Wind and Structures Pub Date : 2021-05-01 DOI:10.12989/WAS.2021.32.5.501

Onur Gunes, E. Altunsu, A. Sarı

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引用次数: 1

Abstract

The turbine industry demands a reliable design with affordable cost. As technological advances begin to support turbines of huge sizes, and the increasing importance of wind turbines from day to day make design safety conditions more important. Wind turbines are exposed to environmental conditions that can affect their installation, durability, and operation. International Electrotechnical Commission (IEC) 61400-1 design load cases consist of analyses involving wind turbine operating conditions. This design load cases (DLC) is important for determining fatigue loads (i.e., forces and moments) that occur as a result of expected conditions throughout the life of the machine. With the help of FAST (Fatigue, Aerodynamics, Structures, and Turbulence), an open source software, the NREL 5MW land base wind turbine model was used. IEC 61400-1 wind turbine design standard procedures assessed turbine behavior and fatigue damage to the tower base of dynamic loads in different design conditions. Real characteristic wind speed distribution and multi-directional effect specific to the site were taken into consideration. The effect of these conditions on the economic service life of the turbine has been studied.

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风力涡轮机疲劳分析中的特殊情况

涡轮机行业需要可靠的设计和可承受的成本。随着技术进步开始支持巨大尺寸的涡轮机，以及风力涡轮机日益增加的重要性，设计安全条件变得更加重要。风力涡轮机暴露在可能影响其安装，耐用性和运行的环境条件下。国际电工委员会(IEC) 61400-1设计负载案例包括涉及风力涡轮机运行条件的分析。这种设计载荷案例(DLC)对于确定疲劳载荷(即力和力矩)是很重要的，这些疲劳载荷是由于机器在整个使用寿命期间的预期条件而产生的。在开源软件FAST(疲劳、空气动力学、结构和湍流)的帮助下，使用了NREL 5MW陆基风力涡轮机模型。IEC 61400-1风电机组设计标准程序评估了不同设计条件下风机的动态载荷性能和塔架的疲劳损伤。考虑了场地的真实特征风速分布和多向效应。研究了这些条件对汽轮机经济使用寿命的影响。

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来源期刊

Wind and Structures 工程技术-工程：土木

CiteScore

2.70

自引率

18.80%

发文量

审稿时长

>12 weeks

期刊介绍： The WIND AND STRUCTURES, An International Journal, aims at: - Major publication channel for research in the general area of wind and structural engineering, - Wider distribution at more affordable subscription rates; - Faster reviewing and publication for manuscripts submitted. The main theme of the Journal is the wind effects on structures. Areas covered by the journal include: Wind loads and structural response, Bluff-body aerodynamics, Computational method, Wind tunnel modeling, Local wind environment, Codes and regulations, Wind effects on large scale structures.