Experimental and numerical investigations of dissipation mechanisms in particle dampers

Masmoudi, Marwa; Job, Stéphane; Abbès, Mohamed Slim; Tawfiq, Imad; Haddar, Mohamed

doi:10.1007/s10035-016-0667-4

Cited by 40 publications

(35 citation statements)

References 35 publications

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“…Similar studies have also been performed by [7,27,36]. Also, Masmoudi [19] performed an extensive study including the effect of the dynamical particle mass.…”

Section: Introductionmentioning

confidence: 54%

“…Also, the dissipated energy is only reaching about 80 % of the theoretical value by Eq. (19). The difference of the optimal stroke obtained by the DEM simulation and the analytical formula is caused by the comparable large particle radius and the high filling ratio of 0.96.…”

Section: Monodisperse Systemsmentioning

confidence: 94%

“…However, this classical definition of the loss factor is indeed not meaningful for application to particle dampers, due to the scaling with the maximum energy stored in a cycle. Therefore, here instead we adopted the approach of [19]. The reduced loss factor η * is calculated by a scaling of the dissipated energy with the kinetic energy of the particle system using the mass of the particle bed m bed to…”

Section: Complex Powermentioning

confidence: 99%

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Toward a design methodology for particle dampers by analyzing their energy dissipation

Meyer

Seifried

2020

Comp. Part. Mech.

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Particle dampers show a huge potential to reduce undesired vibrations in technical applications even under harsh environmental conditions. However, their energy dissipation depends on many effects on the micro- and macroscopic scale, which are not fully understood yet. This paper aims toward the development of design rules for particle dampers by looking at both scales. This shall shorten the design process for future applications. The energy dissipation and loss factor of different configurations are analyzed via the complex power for a large excitation range. Comparisons to discrete element simulations show a good qualitative agreement. These simulations give an insight into the process in the damper. For monodisperse systems, a direct correlation of the loss factor to the motion modes of the rheology behavior is shown. For well-known excitation conditions, simple design rules are derived. First investigations into polydisperse settings are made, showing a potential for a more robust damping behavior.

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“…Similar studies have also been performed by [7,27,36]. Also, Masmoudi [19] performed an extensive study including the effect of the dynamical particle mass.…”

Section: Introductionmentioning

confidence: 54%

Section: Monodisperse Systemsmentioning

confidence: 94%

Section: Complex Powermentioning

confidence: 99%

See 1 more Smart Citation

Toward a design methodology for particle dampers by analyzing their energy dissipation

Meyer

Seifried

2020

Comp. Part. Mech.

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“…The results revealed that despite the fact that friction plays a leading role in energy dissipation, the actual friction coefficient has a little influence on energy consumption. Besides, Masmoudi et al discovered that the loss factor is unrelated to both the number of particles and the material properties, whereas it is only closely associated with the total mass of particles and the excitation amplitude. Chen et al elaborated the new damping mechanism of NOPDs on the basis of the rheological behavior of damping particles.…”

Section: Damping Mechanism and Theoretical Analysis Of Particle Dampingmentioning

confidence: 99%

Particle impact dampers: Past, present, and future

Wang

Masri

Lü

2017

Struct Control Health Monit

201

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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“…The attenuation of seismic waves is an important property of particulate systems, which is of great interest to different communities [163]. Seismic attenuation can be quantified by the quality factor Q [185,206,244], i.e.…”

Section: Attenuationmentioning

confidence: 99%

Elasticity and Wave Propagation in Granular Materials

Taghizadeh¹

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Experimental and numerical investigations of dissipation mechanisms in particle dampers

Cited by 40 publications

References 35 publications

Toward a design methodology for particle dampers by analyzing their energy dissipation

Toward a design methodology for particle dampers by analyzing their energy dissipation

Particle impact dampers: Past, present, and future

Elasticity and Wave Propagation in Granular Materials

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