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Optimal calibration of the rotational inertia double tuned mass damper (RIDTMD) for rotating wind turbine blades
Journal of Sound and Vibration ( IF 4.7 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.jsv.2020.115827
Zili Zhang , Tobias Greve Larsen

Abstract This paper presents the closed-form formulas for optimal calibration (tuning) of the rotational inertia double tuned mass damper (RIDTMD) for damping edgewise vibrations in rotating wind turbine blades. A 3-DOF model is first established for the rotating blade-RIDTMD system, based on which the optimal calibration formulas are derived by means of pole-placement method. Equal modal damping criterion is applied together with the utilization of the triple-root bifurcation point. It is seen from the derived closed-form formulas that the optimal damper parameters depend explicitly on the rotor rotational speed. Comparison of the optimal RIDTMD and the optimal TMD is performed using the NREL 5 MW wind turbine as the numerical example. Results indicate superior performance of the RIDTMD in damping blade vibrations comparing with the TMD, at the cost of slightly increased damper stroke.

中文翻译:

旋转风轮机叶片转动惯量双调谐质量阻尼器(RIDTMD)的优化校准

摘要 本文提出了旋转惯性双调谐质量阻尼器 (RIDTMD) 最佳校准(调谐)的闭式公式,用于阻尼旋转风力涡轮机叶片的边缘振动。首先建立了旋转叶片-RIDTMD系统的3-DOF模型,在此基础上通过极点放置法推导出了最优标定公式。等模态阻尼准则与三根分岔点的利用一起应用。从导出的闭式公式可以看出,最佳阻尼器参数明确取决于转子转速。以NREL 5 MW 风力发电机组为例,对最优RIDTMD 和最优TMD 进行了比较。结果表明,与 TMD 相比,RIDTMD 在阻尼叶片振动方面具有优越的性能,
更新日期:2021-02-01
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