Seismic structural control using an electric servomotor active mass driver system

Lee, Chien‐Liang; Wang, Yen‐Po

doi:10.1002/eqe.373

Cited by 17 publications

(3 citation statements)

References 12 publications

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“…They found that an ATMD system performs better than a passive TMD system. [82] test the result of pitch width on the efficiency of an ATMD system, utilizing a servo motor and ball screw to control a 2D five-story frame. The ball screw is driven by the servomotor and advances the mass one pitch width per revolution through a nut.…”

Section: Active Mass Damper (Amd)mentioning

confidence: 99%

Application of Tuned Mass Dampers for Structural Vibration Control: A State-of-the-art Review

2020

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Given the burgeoning demand for construction of structures and high-rise buildings, controlling the structural vibrations under earthquake and other external dynamic forces seems more important than ever. Vibration control devices can be classified into passive, active and hybrid control systems. The technologies commonly adopted to control vibration, reduce damage, and generally improve the structural performance, include, but not limited to, damping, vibration isolation, control of excitation forces, vibration absorber. Tuned Mass Dampers (TMDs) have become a popular tool for protecting structures from unpredictable vibrations because of their relatively simple principles, their relatively easy performance optimization as shown in numerous recent successful applications. This paper presents a critical review of active, passive, semi-active and hybrid control systems of TMD used for preserving structures against forces induced by earthquake or wind, and provides a comparison of their efficiency, and comparative advantages and disadvantages. Despite the importance and recent advancement in this field, previous review studies have only focused on either passive or active TMDs. Hence this review covers the theoretical background of all types of TMDs and discusses the structural, analytical, practical differences and the economic aspects of their application in structural control. Moreover, this study identifies and highlights a range of knowledge gaps in the existing studies within this area of research. Among these research gaps, we identified that the current practices in determining the principle natural frequency of TMDs needs improvement. Furthermore, there is an increasing need for more complex methods of analysis for both TMD and structures that consider their nonlinear behavior as this can significantly improve the prediction of structural response and in turn, the optimization of TMDs.

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Section: Active Mass Damper (Amd)mentioning

confidence: 99%

Application of Tuned Mass Dampers for Structural Vibration Control: A State-of-the-art Review

2020

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“…The objective structure considered in this study is a scaled-down five-story steel frame model. The system parameters of the model structure are summarized in Table 1 [26].…”

Section: Mdof Structure With a Stmdmentioning

confidence: 99%

Optimal design theories and applications of tuned mass dampers

Lee

Chen

Chung

et al. 2006

Engineering Structures

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235

120

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“…The favourable performance of the active control in reducing the effects of both earthquake and wind loads has been investigated through many simulations and theoretical works. In the field of earthquake engineering, the works by Abe´ [9], Kurata [10] and Lee and Wang [11] can be recalled. In the case of wind-induced vibrations, many theoretical and numerical studies asserted the applicability of active control techniques in reducing the structural motion.…”

Section: Active Control Of Civil Engineering Structuresmentioning

confidence: 99%

Active displacement control of a wind-exposed mast

Breccolotti

Gusella

2007

Struct. Control Health Monit.

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The present paper describes the use of an active mass damper for the reduction of the wind-induced displacements of a full-scale mast built for the purpose at the University of Perugia (Italy). After a brief description of the mock-up structure and the bench tests carried out to characterize the active control device, the results of the tests and the numerical simulations performed to optimize the control gain parameters are displayed. The comparison between the results of the numerical simulations and those from the experimental tests highlighted the effects of the unavoidable imperfections of the physical system, such as the limitation of the available power, the presence of friction, the limited extension of the moveable masses' strokes and the computation time delays, that reduce the effectiveness of the control system. With the best gain parameters, several full-scale tests have been executed to observe the behaviour of the structure under wind loads. The comparison between the performance of the uncontrolled and the controlled structure clearly showed the effectiveness of the proposed technique for the reduction of both displacements and vibrations.

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Seismic structural control using an electric servomotor active mass driver system

Cited by 17 publications

References 12 publications

Application of Tuned Mass Dampers for Structural Vibration Control: A State-of-the-art Review

Application of Tuned Mass Dampers for Structural Vibration Control: A State-of-the-art Review

Optimal design theories and applications of tuned mass dampers

Active displacement control of a wind-exposed mast

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