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Energy transfer and passive control of single-degree-of-freedom structures using a one-directional rotational inertia viscous damper

机译:使用单向旋转惯性粘性阻尼器的单型自由度结构的能量传递和无源控制

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In this paper, a novel rotational inertia device known as a one-directional rotational inertia viscous damper (ODRIVD) is proposed for the passive control of structures and studied as an attachment to single-degree-of-freedom (SDOF) systems. The ODRIVD allows for energy to be passively transferred from a primary structure to a rotational flywheel in a one-directional fashion. This one-directional transfer allows energy to be transferred to this flywheel, where it can be locally dissipated, but does not allow energy to be transferred back to the primary structure. This behavior is in contrast to traditional rotational inertia dampers, which utilize an inerter that allows for the two-way transfer of energy back and forth between the inerter and the primary structure. The proposed ODRIVD shows the ability for the passive control of SDOF systems without changing its natural frequency significantly, which typically occurs when using inerters. The mechanism of the proposed device and a model of its dynamics are presented in this paper and its behavior and effectiveness are investigated. The results of this study show that the ODRIVD has the potential for superior effectiveness at passive vibration control, in comparison to traditional rotational inertia dampers with the same rotational inertia mass and damping.
机译:本文提出了一种称为单向旋转惯性粘性阻尼器(ODRIVD)的新型旋转惯性装置,用于结构的无源控制,并作为与单级自由度(SDOF)系统的附着进行研究。 ODRIVD允许以单向方式将能量从主要结构被动地传递到旋转飞轮。这种单向传递允许将能量转移到该飞轮,在那里可以在局部散发,但不允许将能量转移回主要结构。与传统的旋转惯性阻尼器相比,这种行为与传统的旋转惯性阻尼器相反,其利用允许在活动和主要结构之间来回来回允许双向能量的转移。建议的ODRIVD显示了SDOF系统的无源控制的能力,而不显着改变其自然频率,这通常在使用惰性时发生。本文提出了所提出的装置和动态模型的机制,并研究了其行为和有效性。该研究的结果表明,与传统的旋转惯性阻尼器具有相同的旋转惯性质量和阻尼的传统旋转惯性阻尼器相比,ODRIVD具有卓越的有效性。

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