Tuned rolling-ball dampers for vibration control in wind turbines

Chen, Junling; Georgakis, Christos Τ.

doi:10.1016/j.jsv.2013.05.019

Cited by 120 publications

(67 citation statements)

References 9 publications

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“…Hence, lifeline engineering should have the ability to cope with harsh environments, such as earthquake and windstorm. Particle damping applications in lifeline engineering mainly include the vibration control of wind turbines, [16] power transmission towers, [17,18] subsea jumpers, [19,20] oil-well or gas-well drilling, [178] and the vibration and noise reduction of high-speed rail wheels. [179] FIGURE 11 (a) Conceptual diagram of a momentum exchange impact dampers (MEID); (b) landing gear system with passive MEID; and (c) landing gear system with active MEID To attenuate the dynamic response and prevent the fatigue failure of wind turbines, the tuned rolling-ball damper, which contains single or multiple balls rolling in a spherical container and is mounted on the top of wind turbines, was proposed by Chen et al [16] Furthermore, Zhang et al [59] put forward a ball vibration absorber to prevent offshore wind turbines from the destruction of vibration caused by earthquakes or combined wind-wave loads.…”

Section: Particle Damping Applications In Lifeline Engineeringmentioning

confidence: 99%

“…[11,12] This vibration attenuation technology has been widely used in the aerospace and machinery fields, producing many kinds of industrial applications, for instance, the vibration suppression of cutting tools, [13] engine turbine system in the space shuttle, [2,14] and antenna structures. [10,15] Furthermore, particle damping technology also shows its superiority in the vibration and noise control in lifeline engineering, such as wind turbines, [16] power transmission towers, [17,18] and subsea jumpers. [19,20] It is worth mentioning that several papers have been conducted to study its application in reducing the vibrations of surgical and dental instruments for mechanical material ablation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Particle impact dampers: Past, present, and future

Wang

Masri

Lü

2017

Struct Control Health Monit

186

105

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Particle damping, an effective passive vibration control technology, is developing dramatically at the present stage, especially in the aerospace and machinery fields. The aim of this paper is to provide an overview of particle damping technology, beginning with its basic concept, developmental history, and research status all over the world. Furthermore, various interpretations of the underlying damping mechanism are introduced and discussed in detail. The theoretical analysis and numerical simulation, together with their pros and cons are systematically expounded, in which a discrete element method of simulating a multi-degree-of-freedom structure with a particle damper system is illustrated. Moreover, on the basis of previous studies, a simplified method to analyze the complicated nonlinear particle damping is proposed, in which all particles are modeled as a single mass, thereby simplifying its use by practicing engineers. In order to broaden the applicability of particle dampers, it is necessary to implement the coupled algorithm of finite element method and discrete element method. In addition, the characteristics of experimental studies on particle damping are also summarized. Finally, the application of particle damping technology in the aerospace field, machinery field, lifeline engineering, and civil engineering is reviewed at length. As a new trend in structural vibration control, the application of particle damping in civil engineering is just at the beginning. The advantages and potential applications are demonstrated, whereas the difficulties and deficiencies in the present studies are also discussed. The paper concludes by suggesting future developments involving semi-active approaches that can enhance the effectiveness of particle dampers when used in conjunction with structures subjected to nonstationary excitation, such as earthquakes and similar nonstationary random excitations. KEYWORDS discrete element method, impact damping, nonlinear energy sink, particle damping, passive control, semiactive control | INTRODUCTIONParticle damping technology is a form of an auxiliary-mass type vibration damper, wherein multiple metal, tungsten carbide, ceramic or other types of small particles are placed within the cavities of the vibrating structure, or the enclosures attached to the vibrating structure in order to mitigate the response of the primary structure. [1,2] As the primary structure vibrates, kinetic energy is significantly absorbed through the combined effects of particle-to-particle and particle-to-wall inelastic collisions and frictional losses, producing considerable damping to the primary structure. [3][4][5][6] Particle damping technology has been widely Received: 23 February 2017 Revised: used due to its conceptual simplicity, moderate cost, good durability, and temperature insensitivity. Provided that the operating temperature is below the particles' metal melting point, it could maintain normal operation. Furthermore, material such as tungsten powder can withstand the high temp...

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Section: Particle Damping Applications In Lifeline Engineeringmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Particle impact dampers: Past, present, and future

Wang

Masri

Lü

2017

Struct Control Health Monit

186

105

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“…An extreme operating gust loading has been considered in the following as reference wind action: a sharp increase, then decrease in wind speed within a short period of time. Chen and Georgakis [1] defined an equivalent base acceleration time history (Figure 4), that is the base input that would provide the same top mass response of the real fixed base structure subjected to the wind action. …”

Section: Case Studymentioning

confidence: 99%

“…Chen and Georgakis [1] performed an experimental analysis of a 1/20-scale wind tower model equipped with a passive rolling-ball damper to reduce vibrations. Such damper consists of a glass container placed at the top of the model and having one or more steel balls inside.…”

Section: Introductionmentioning

confidence: 99%

A Smart Base Restraint for Wind Turbines to Mitigate Undesired Effects Due to Structural Vibrations

Caterino

Georgakis²,

Spizzuoco

et al. 2016

Proceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016)

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A smart base restraint for wind turbines to mitigate undesired effects due to structural vibrations Caterino, N.; Georgakis, Christos T.; Spizzuoco, M.; Occhiuzzi, A. Published in: Eccomas 2016 Proceedings Publication date: 2016 Document VersionPublisher's PDF, also known as Version of record Link back to DTU Orbit Citation (APA): Caterino, N., Georgakis, C. T., Spizzuoco, M., & Occhiuzzi, A. (2016) Abstract. Concerns in the last decades of the negative impact of the use of fossil fuels on the environment has lead to a boom in the production of wind turbines. To take advantage of the smoother stronger winds at height, wind turbine heights are progressively increasing. This has led to an increased demand to control tower forces. The application of a semi-active (SA) control system is herein proposed and discussed. Its aim is to limit bending moment demand at the base of a wind turbine by relaxing the base restraint of the turbine's tower, without increasing the top displacement. This is done thanks to the sharp increase of the dissipated energy in selected intervals

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“…Tuned rolling damper consists of one or multiple steel balls in place of liquid compared to TLCD. Chen and Georgakis [109] studied tuned rolling ball damper modelled with one-layer (spherical) and two-layer (hemispherical) containers for wind turbine shake table scaled model. This study presented vibration control response of developed wind turbine test model for different excitation loads and number of balls in the container.…”

Section: Other Vibration Control Dampersmentioning

confidence: 99%