Study on the damping mechanisms of a suspended particle damperattached to a wind turbine tower

IF 1.3 4区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Wind and Structures Pub Date : 2021-07-01 DOI:10.12989/WAS.2021.33.1.103

Chenzhi Ma, Zheng Lu, Dianchao Wang, Zixin Wang

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引用次数: 3

Abstract

Intensive attention has been given to mitigating the dynamic responses of wind turbine towers (WTs) under wind and seismic excitations to ensure their safety and serviceability. This study details the damping mechanisms of a suspended particle damper (suspended PD) on the vibration control of a horizontal-axis WT. This damper combines the benefits of a tuned mass damper (TMD) and fixed PD, and can be effective without an external damping system. It therefore is a more practical solution for the vibration control of a WT. In this study, a finite element WT is built, and two damper systems with a TMD and suspended PD are modeled and compared. Ground motions and strong lateral winds are applied as external excitations to the operational and parked turbines, respectively. A full factorial study using a statistical method is conducted to determine the interaction effects of key parameters of the suspended PD. Results show that the damping effectiveness of a suspended PD is not sensitive to the external damping system under specific parameters, and it can be effective in detuned cases. Finally, a comparison between the optimal TMD and suspended PD on the vibration control of a WT is performed. The comparative results indicate that the performance of the suspended PD is considerably more robust than the TMD in wind-seismic excitations.

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风力机塔架悬浮粒子阻尼器阻尼机理研究

风机塔架（WT）在风和地震激励下的动力响应已得到高度重视，以确保其安全性和可用性。本研究详细介绍了悬浮粒子阻尼器（悬浮PD）在水平轴WT振动控制中的阻尼机制。该阻尼器结合了调谐质量阻尼器（TMD）和固定PD的优点，在没有外部阻尼系统的情况下可以有效。因此，对于WT的振动控制来说，这是一个更实用的解决方案。在本研究中，建立了一个有限元WT，并对具有TMD和悬挂PD的两个阻尼器系统进行了建模和比较。地面运动和强侧风分别作为外部激励作用于运行和停放的涡轮机。采用统计方法进行了全因子研究，确定了悬浮PD关键参数的相互作用效果。结果表明，在特定参数下，悬浮PD的阻尼效果对外部阻尼系统不敏感，在失谐情况下可以有效。最后，对WT振动控制的最优TMD和悬浮PD进行了比较。比较结果表明，在风-地震动激励下，悬挂PD的性能明显优于TMD。

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

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.