基于电涡流-调谐质量阻尼器的海上风电筒型基础结构减振研究

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摘要针对海上风电结构在极端风荷载作用下会发生不利于工程安全的大幅振动问题，从理论推导与工程应用两个方面研究了基于新型电涡流-调谐质量阻尼器（Eddy Current-Tuned Mass Damper, EC-TMD）在海上风电筒型基础结构应用的可行性。首先，基于电涡流阻尼器（ECD）减振机理，将新型水平和摆式EC-TMD中的电涡流阻尼采用数值模拟中常规阻尼器等效替代。随后，利用Warburton公式对EC-TMD结构阻尼比和频率比进行优化。最后，将EC-TMD应用于江苏响水海上风电复合筒型基础结构实际工程模拟中。结果表明：极端风荷载工况下，EC-TMD可有效降低塔筒顶部振动位移幅度达21%至33%，说明其对海上风电筒型基础结构减振具有一定的工程应用价值。

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	练继建1
	2
	赵悦1
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	练冲1
	2
	董霄峰1
	2
	王海军1
	2

关键词 ：电涡流-调谐质量阻尼器（EC-TMD）, 减振, 海上风电结构, 原型观测, 数值模拟

Abstract：Aiming at large amplitude vibration problems of offshore wind turbine structures under extreme wind loads being not conducive to safety, the feasibility of applying eddy current-tuned mass damper (EC-TMD) to reduce vibration of an offshore wind turbine tube infrastructure was studied in two ways of theoretical derivation and engineering application. Firstly, eddy current damping of horizontal and pendulum type EC-TMDs was equivalently substituted with conventional damper in numerical simulation based on the vibration reduction principle of eddy current damper (ECD). Secondly, structural damping ratio and frequency ratio of EC-TMD were optimized with Warburton formula. Finally, EC-TMD was used in the actual engineering simulation for a certain offshore wind turbine tube infrastructure located at Xiangshui of Jiangsu province. Results showed that under extreme wind loads condition, EC-TMD can be used to reduce 21%-33% vibration displacement amplitude at the tower tube top; EC-TMD is very valuable for vibration reduction of offshore wind turbine structures.

Key words： eddy current-tuned mass damper (EC-TMD) vibration reduction offshore wind turbine structure prototype observation numerical simulation

收稿日期: 2018-04-28 出版日期: 2019-09-28

引用本文:

练继建1,2，赵悦1,2，练冲1,2，董霄峰1,2，王海军1,2. 基于电涡流-调谐质量阻尼器的海上风电筒型基础结构减振研究[J]. 振动与冲击, 2019, 38(19): 20-25.
LIAN Jijian1,2, ZHAO Yue1,2, LIAN Chong1,2, DONG Xiaofeng1,2, WANG Haijun1,2. Vibration reduction of offshore wind turbine tube infrastructures based on EC-TMD. JOURNAL OF VIBRATION AND SHOCK, 2019, 38(19): 20-25.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2019/V38/I19/20

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