新型风电塔减振器的概念设计和试验初步验证
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摘要
近年来风能发电技术发展迅速,风电塔结构作为支撑风机的主要结构,在服役期间会受到强风荷载与地震作用,因此对风电塔结构的振动控制问题已经引起广泛关注。提出一种用于风电塔结构的新型减振耗能装置——调谐液体颗粒阻尼(TL-PD),该装置主要结合调谐液体阻尼技术(TLD)与颗粒阻尼技术(PD)。首先阐述该TL-PD装置的设计构思。然后,为验证该装置的减振效果,制作一简易装置,将其安装于一个单层框架顶部,开展振动台试验。试验结果表明,在正弦波和Kobe地震波的激励下,TL-PD能够有效减小结构的动力响应,且具有经济、实用的特点。
Wind energy industry has been growing rapidly in past few decades. Wind turbine towers, as turbine supporting structures, suffer strong winds and seismic loads in its service period. Therefore, various vibration control techniques have been studied for wind turbine towers. This paper proposes a new passive damper—the Tuned Liquid Particle Damper(TL-PD), for wind turbine tower vibration control. This new damper combines the features of the tuned liquid damper(TLD) and the particle damper(PD). The paper first presents a conceptual design of the TL-PD. A series of shaking table tests were conducted with the damper being installed on a single-degree-offreedom system. Test results show that this proposed TL-PD is capable to suppress dynamic responses of the main structure under both sinusoidal and the Kobe earthquake excitations.
Wind energy industry has been growing rapidly in past few decades. Wind turbine towers, as turbine supporting structures, suffer strong winds and seismic loads in its service period. Therefore, various vibration control techniques have been studied for wind turbine towers. This paper proposes a new passive damper—the Tuned Liquid Particle Damper(TL-PD), for wind turbine tower vibration control. This new damper combines the features of the tuned liquid damper(TLD) and the particle damper(PD). The paper first presents a conceptual design of the TL-PD. A series of shaking table tests were conducted with the damper being installed on a single-degree-offreedom system. Test results show that this proposed TL-PD is capable to suppress dynamic responses of the main structure under both sinusoidal and the Kobe earthquake excitations.
引文
[1]戴靠山,袁天骄,黄益超,等.风力发电塔架结构防灾研究综述[J/OL].中国科技论文在线(2013-11-01)[2014-4-28]http://www.paper.edu.cn/releasepaper/content/201311-37(Dai Kaoshan,Yuan Tianjiao,Huang Yichao,et al.A review of wind turbine tower structural safety studies[J/OL].Sciencepaper Online(2013-11-01)[2014-4-28]http://www.paper.edu.cn/releasepaper/content/201311-37(in Chinese))
[2]闫维明,黄韵文,何浩祥,等.颗粒阻尼技术及其在土木工程中的应用展望[J].世界地震工程,2010,26(4):18-24(Yan Weiming,Huang Yunwen,He Haoxiang,et al.Particle damping technology and its application prospect in civil engineering[J].World Earthquake Engineering,2010,26(4):18-24(in Chinese))
[3]梁启智,熊俊明,黄庆辉.调谐液体阻尼器对高层建筑和高耸结构动力反应控制研究综述[J].世界地震工程,2002,18(1):123-128(Liang Qizhi,Xiong Junming,Huang Qinghui.A review on dynamic respons e control of tall buildings and high-rise structures by tuned liquid damper(TLD)[J].World Earthquake Engineering,2002,18(1):123-128(in Chinese))
[4]Housner G W.Vibration of structures induced by seismic waves[J].Shock and Vibration Handbook,1961,3:1-32
[5]Veritas N.Guidelines for design of wind turbines[M].Det Norske Veritas:Wind Energy Department,Ris National Laboratory,2002
[6]李伟,朱德懋,黄协清.柔性约束颗粒阻尼于板结构的减振研究[J].噪声与振动控制,1998,4:2-5(Li Wei,Zhu Demao,Huang Xieqing.Study on vibration absorption of granular damping with fl exible boundary on plane structure[J].Noise and Vibration Control,1998,4:2-5(in Chinese))
[2]闫维明,黄韵文,何浩祥,等.颗粒阻尼技术及其在土木工程中的应用展望[J].世界地震工程,2010,26(4):18-24(Yan Weiming,Huang Yunwen,He Haoxiang,et al.Particle damping technology and its application prospect in civil engineering[J].World Earthquake Engineering,2010,26(4):18-24(in Chinese))
[3]梁启智,熊俊明,黄庆辉.调谐液体阻尼器对高层建筑和高耸结构动力反应控制研究综述[J].世界地震工程,2002,18(1):123-128(Liang Qizhi,Xiong Junming,Huang Qinghui.A review on dynamic respons e control of tall buildings and high-rise structures by tuned liquid damper(TLD)[J].World Earthquake Engineering,2002,18(1):123-128(in Chinese))
[4]Housner G W.Vibration of structures induced by seismic waves[J].Shock and Vibration Handbook,1961,3:1-32
[5]Veritas N.Guidelines for design of wind turbines[M].Det Norske Veritas:Wind Energy Department,Ris National Laboratory,2002
[6]李伟,朱德懋,黄协清.柔性约束颗粒阻尼于板结构的减振研究[J].噪声与振动控制,1998,4:2-5(Li Wei,Zhu Demao,Huang Xieqing.Study on vibration absorption of granular damping with fl exible boundary on plane structure[J].Noise and Vibration Control,1998,4:2-5(in Chinese))
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