Metal cushion dampers for railway applications: A review

Pérez, Alejandro; Ferreño, Diego; Carrascal, I.; Polanco, Juan A.; Casado, Julio; Diego, Soraya

doi:10.1016/j.conbuildmat.2019.117711

Cited by 14 publications

(7 citation statements)

References 63 publications

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“…The maximum deformation energy stored in one test cycle (U) can be calculated as equation (1). Then, the loss factor of EPMM can be defined as equation (2).…”

Section: Characterization Of Mechanical Properties Of Epmmmentioning

confidence: 99%

“…EPMM has a broad application prospect in passive vibration control because its stiffness and damping characteristics do not degrade in extreme environments. EPMM has been used in hightemperature pipelines [1], railways [2], spacecraft [3][4][5], and turbo-machinery [6,7]. When the EPMM is deformed by external excitation, the internal wire slips relatively at the contact point and dissipates vibration energy in the form of friction.…”

Section: Introductionmentioning

confidence: 99%

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Compressive mechanical behavior and model of composite elastic-porous metal materials

Yang¹,

Zhou²,

Di³

et al. 2021

Mater. Res. Express

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This work presents the experimental characterization and theoretical modeling of composite elastic-porous metal materials (C-EPMM). C-EPMM is a novel porous metallic damping material made of wire mesh and wire helix. A series of quasi-static compressive experiments were carried out to investigate the stiffness and energy absorption ability of the C-EPMM with different mass ratios. The experimental results show that the mass ratios can significantly affect the stiffness and loss factor of C-EPMM. To efficiently predict the nonlinear mechanical properties of the C-EPMM a theoretical model of C-EPMM was proposed for the first time, the model was based on the manufacturing process. A comparison between the predicted data and the experimental data was conducted. The results show that the theoretical model can accurately predict the mechanical performance of C-EPMM. The conclusions derived from this work can provide a new method for adjusting the mechanical performance of EPMM in applications.

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“…The maximum deformation energy stored in one test cycle (U) can be calculated as equation (1). Then, the loss factor of EPMM can be defined as equation (2).…”

Section: Characterization Of Mechanical Properties Of Epmmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compressive mechanical behavior and model of composite elastic-porous metal materials

Yang¹,

Zhou²,

Di³

et al. 2021

Mater. Res. Express

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show abstract

“…MMDs are typically constructed either by spiral metal thread or by knitted metal mesh. e former type of MMDs usually presents chaotic wire patterned structures, while the latter type has a layer-structured typology [26]. Because the spiral thread-based type is chosen as the objective of the present study, all the tested results and conclusions from this paper might not apply to the knitted metal mesh dampers.…”

Section: Fabrication Of MMDmentioning

confidence: 99%

Simulation of the Dynamic Response to Sinusoidal Excitation of the Elastic Porous Metal Mesh Damper

Shao

Song

Xin

et al. 2021

Shock and Vibration

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As a promising device of vibration isolation for rocket engine turbopumps, turbine engines, and other kinds of rotordynamic applications, the elastic porous metal mesh damper (MMD) has drawn large attention from researchers. It exhibits higher load capacity and environmental adaptivity than traditional viscoelastic damping materials owing to the excellent combination of metallic properties and the rubber-like damping performance. However, the design of a metal mesh damper relies heavily on the trial-and-error methodology for tuning fabrication parameters, which prevents it from widespread use in rotor-bearing applications. Therefore, efforts are directed toward forging an explicit link between fabrication parameters and the dynamic behaviors of MMDs in the present work. Quasistatic and dynamic mechanical tests are carried out to help determine the primary factor that influences the damping performance of the MMD and to demonstrate how the dynamic behaviors of MMDs evolve with the fabrication parameters. Furthermore, two different modeling methodologies, i.e., the FE method and the mixed damping approach, are used to predict the hysteresis behaviors of the dampers. The latter method not only properly reproduces the experimental results but also makes it possible to build an intuitive connection between the fabrication procedures and the dynamic mechanical behaviors of the MMDs. The orthogonal test results determine that the mesh density plays a dominant role in controlling both the load capacity and damping performance of the MMDs. By integrating mesh density and motion amplitude into the expression of parameters including stiffness coefficient, damping coefficient, and damping component factor, the mixed damping model demonstrates excellent predictive accuracy under different excitation conditions.

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“…The manufacture of porous metal materials has gained significant interest in the scientific community during the last decades due to their low density, good capacity for energy absorption, and high specific surface characteristics. These properties, together with the nature of the material and their pore morphology, give them a great variety of applications, such as battery electrodes [1], sound barriers material [2], filters/catalysts [3,4], biomedical implants [5,6], cushion dampers [7], etc. Furthermore, if the porosity of these materials is interconnected, other attractive characteristics such permeability, infiltration, and heat exchange arise, being the manufacture of wicks one of its most significant applications.…”

Section: Introductionmentioning

confidence: 99%

Nickel Wick by Continuous Freeze-Casting: Influences of the Particle Size on the Capillarity and Mechanical Properties

et al. 2021

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The aim of this work was to study the effect of the particle size range, the freeze casting temperature and sintering temperature on the capillarity performance and mechanical properties of Ni wicks manufactured by freeze-casting. The use of Ni/camphene-polystyrene suspensions creates wicks with an open porosity above 80% and average pore sizes of 38 μm to 17 μm by tailoring the particle size ranges and freezing temperatures employed. The incorporation of PS and the use of a continuous freeze-casting process reduces the particle sedimentation and generates a highly interconnected pore structure with regular pore sizes across the sample. The capillarity performances exhibit a fast and complete water adsorption, especially in Ni wicks freeze-casted at 10 °C and sintered at 800 °C, but only when the smaller particle size range is used do Ni wicks achieve sufficient mechanical strength.

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Metal cushion dampers for railway applications: A review

Cited by 14 publications

References 63 publications

Compressive mechanical behavior and model of composite elastic-porous metal materials

Compressive mechanical behavior and model of composite elastic-porous metal materials

Simulation of the Dynamic Response to Sinusoidal Excitation of the Elastic Porous Metal Mesh Damper

Nickel Wick by Continuous Freeze-Casting: Influences of the Particle Size on the Capillarity and Mechanical Properties

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