Performance of accelerated oscillator dampers under seismic loading

Tan, Yaosheng; Guan, Ruyi; Zhang, Zhe

doi:10.1177/1687814018767510

Cited by 11 publications

(3 citation statements)

References 25 publications

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“…A novel damper device, accelerated oscillator damper (AOD), has been proposed recently [13]. The AOD system includes oscillator mass, transmission, spring, and viscous damper.…”

Section: Accelerated Oscillator Dampermentioning

confidence: 99%

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Oscillator Dampers in Civil Structures

Tan¹

2019

Oscillators - Recent Developments

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Many kinds of oscillators, springs, and damping system compose vibration reduction system in civil structures. Since the invention of the tuned mass damper (TMD) device a century ago, it has become a very important technology in structural control. TMDs can effectively suppress the response of civil structures under harmonic or wind excitations. To improve the damping capacity of TMDs in reducing the vibration of structures under seismic loads, a large mass ratio should be used, but TMDs are still ineffective in suppressing the seismic peak response of high-rise buildings. The inerter-based dynamic vibration absorbers (IDVA), including tuned inerter dampers (TID) and tuned mass-damper-inerter (TMDI), have been investigated in recent years. The advantage of using a TID and TMDI comes from the adoption of gearing in the inerter, which equivalently amplifies the mass. The mass ratio of an inerter is very high; hence, its mechanical properties and reliability are vital. A novel damper device, accelerated oscillator damper (AOD), has been proposed recently. Gear transmission systems are used to generate an amplified kinetic energy of the oscillator to reduce the oscillations of the structures. The AOD system is superior to the traditional TMD system in short time loading intervals or under the maximum seismic loads.

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“…A novel damper device, accelerated oscillator damper (AOD), has been proposed recently [13]. The AOD system includes oscillator mass, transmission, spring, and viscous damper.…”

Section: Accelerated Oscillator Dampermentioning

confidence: 99%

“…Recently, a novel effective device, accelerated oscillator damper (AOD), was proposed to suppress the vibrations of civil structures under seismic loads [13]. AOD includes oscillator mass, transmission, spring, and viscous damper.…”

Section: Introductionmentioning

confidence: 99%

Oscillator Dampers in Civil Structures

Tan¹

2019

Oscillators - Recent Developments

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“…The tuned mass damper which consists of a mass, spring, and damping, is the most common device in vibration control. 3 For mitigating of a tower of the wind turbine, a passive tuned mass damper (TMD) placed on the top of the tower for reduction vibration is proposed. 4 Lackner and Rotea 5 modified the FAST wind turbine computer-aided engineering software tool, by incorporating two independent TMDs into the nacelle.…”

Section: Introductionmentioning

confidence: 99%

Decentralized control of vibrations in wind turbines using multiple active tuned mass dampers with stroke constraint

Cong

2018

Advances in Mechanical Engineering

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This article is devoted to the study of the vibration control for blades and tower in a wind turbine. Based on the Euler-Lagrangian method, a multi-body dynamic model including three blades with distributed parameter, tower, and their coupling is obtained. Multi active tuned mass dampers have been utilizing as damping devices. Therefore, the dynamics of the tuned mass dampers are also considered in modeling. The influence of extreme wind, and grid dynamics on the vibration of the blade was analyzed. Moreover, the nonlinearity induced by space constraints, which impact on vibration control, is introduced. For active control, the constrained decentralized control strategy is designed via linear matrix inequality which tuned mass dampers stroke constraints are modeled as hard constraints. A doubly fed induction generator connected to an infinite bus including the detailed electrical and structural model was performed on MATLAB/Simulink. Simulation results show that the control strategy can effectively reduce the vibration of the blade while the damper stroke satisfies the working space permitted by the blade. Investigations demonstrate promising results for decentralized constrained control in simultaneous control blade vibrations and tower vibrations. Each actuator is driven separately from the output of the corresponding sensor so that only local feedback control is achieved; this improves the system reliability.

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Performance of optimum accelerated oscillator damper-based isolation system for buildings

Tan

Chen

2021

Engineering Structures

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Performance of accelerated oscillator dampers under seismic loading

Cited by 11 publications

References 25 publications

Oscillator Dampers in Civil Structures

Oscillator Dampers in Civil Structures

Decentralized control of vibrations in wind turbines using multiple active tuned mass dampers with stroke constraint

Performance of optimum accelerated oscillator damper-based isolation system for buildings

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