Modeling of Granular Particle Damping Using Multiphase Flow Theory of Gas-Particle

Wu, Chengjun; Liao, Wei-Hsin; Wang, Michael Yu

doi:10.1115/1.1688763

Cited by 78 publications

(33 citation statements)

References 13 publications

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“…For simple systems, such as cantilever oscillators, some progress has been made. Theoretical models have been developed based on phenomenological descriptions of the multiphase gas-particle flow of granular matter for attenuating oscillations [35] and also for driven steady state oscillations [36].…”

Section: Introductionmentioning

confidence: 99%

Movers and shakers: Granular damping in microgravity

Bannerman¹,

Kollmer²,

Sack³

et al. 2011

Phys. Rev. E

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The response of an oscillating granular damper to an initial perturbation is studied using experiments performed in microgravity and granular dynamics simulations. High-speed video and image processing techniques are used to extract experimental data. An inelastic hard sphere model is developed to perform simulations and the results are in excellent agreement with the experiments. The granular damper behaves like a frictional damper and a linear decay of the amplitude is observed. This is true even for the simulation model, where friction forces are absent. A simple expression is developed which predicts the optimal damping conditions for a given amplitude and is independent of the oscillation frequency and particle inelasticities.

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Section: Introductionmentioning

confidence: 99%

Movers and shakers: Granular damping in microgravity

Bannerman¹,

Kollmer²,

Sack³

et al. 2011

Phys. Rev. E

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“…Experimental and numerical methods are used to understand the physics of the PID. Experiments are conducted by Panossian [5,22], Papalou and Masri [23,24], Tomlinson et al [3], Saeki [25], Olson [26], Xu et al [27][28][29], Mao et al [30], Wu et al [31], Marhadi and Kinra [32], and Wong et al [33]. Most of the numerical simulations [18,25,26,30,33] are based on the discrete element method (DEM), which is initially proposed by Cundal and Strack [34].…”

Section: Introductionmentioning

confidence: 99%

“…Friend and Kinra [12] also studied PID by means of the equivalent mass method. Numerical analysis based on layered particle assumption [29] and multi-phase flow theories [31] are also reported.…”

Section: Introductionmentioning

confidence: 99%

Modeling the fine particle impact damper

2010

International Journal of Mechanical Sciences

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“…In terms of particle damping mechanism, Fang and Tang [17] improved the analytical approximate modeling of granular damping using the multiphase flow theory [18] correlated with the numerical studies by discrete element method (DEM) [19,20]. They developed simulation studies for single DOF vertical forced vibration system, evaluating the interaction forces between the granules and the enclosure derived by the multiphase flow theory.…”

Section: Introductionmentioning

confidence: 99%

Particle Damping with Granular Materials for Multi Degree of Freedom System

Inoue

Yokomichi

Hiraki

2011

Shock and Vibration

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Abstract.A particle damper consists of a bed of granular materials moving in cavities within a multi degree-of-freedom (MDOF) structure. This paper deals with the damping effects on forced vibrations of a MDOF structure provided with the vertical particle dampers. In the analysis, the particle bed is assumed to be a single mass, and the collisions between the granules and the cavities are completely inelastic, i.e., all energy dissipation mechanisms are wrapped into zero coefficient of restitution. To predict the particle damping effect, equations of motion are developed in terms of equivalent single degree-of-freedom (SDOF) system and damper mass with use made of modal approach. In this report, the periodic vibration model comprising sustained contact on or separation of the damper mass from vibrating structure is developed. A digital model is also formulated to simulate the damped motion of the physical system, taking account of all vibration modes. Numerical and experimental studies are made of the damping performance of plural dampers located at selected positions throughout a 3MDOF system. The experimental results confirm numerical prediction that collision between granules and structures is completely inelastic as the contributing mechanism of damping in the vertical vibration. It is found that particle dampers with properly selected mass ratios and clearances effectively suppress the resonance peaks over a wide frequency range.

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Modeling of Granular Particle Damping Using Multiphase Flow Theory of Gas-Particle

Cited by 78 publications

References 13 publications

Movers and shakers: Granular damping in microgravity

Movers and shakers: Granular damping in microgravity

Modeling the fine particle impact damper

Particle Damping with Granular Materials for Multi Degree of Freedom System

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