Coefficient of restitution for wet particles [PDF]
Physical Review E, 2012 The influence of a wetting liquid on the coefficient of restitution (COR) is investigated experimentally by tracing freely falling particles bouncing on a wet surface. The dependence of the COR on the impact velocity and various properties of the particle and the wetting liquid is presented and discussed in terms of dimensionless numbers that ...
Gollwitzer, Frank +3 more
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Determining the Coefficient of Restitution Through the “Bouncing Ball” Experiment using Phyphox
International Journal of Applied Sciences and Smart Technologies, 2022 This study aims to determine the restitution coefficient based on the reflected sound from the “bouncing ball” experiment. The experiment used a Phyphox-based smartphone.
Jesi Pebralia
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Effect of the coefficient of restitution and friction in the granular Leidenfrost effect in the absence of gravity. A numerical study [PDF]
EPJ Web of Conferences, 2021 In this study the granular Leidenfrost effect in the absence of gravity is investigated numerically by means of the discrete element method. Apart from identifying the phenomena, a parametric study to quantify the influence of the coefficient of ...
Schiochet Nasato Daniel, Briesen Heiko
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Effects of the impact angle on the coefficient of restitution in rockfall analysis based on a medium-scale laboratory test [PDF]
Natural Hazards and Earth System Sciences, 2018 The reliability of a computer program simulating rockfall trajectory depends on the ascertainment of reasonable values for the coefficients of restitution, which typically vary with the kinematic parameters and terrain conditions.
Y. Wang +5 more
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Influence of the coefficient of restitution on the classification of granite sand using an elutriator [PDF]
EPJ Web of Conferences, 2021 The objective of this work was to measure the coefficient of restitution of fine granite sand dust (passing sieve ASTM N°30) and to study its influence on the prediction of classification parameters in an elutriator device.
Borsa Eugenia +4 more
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Impact of a pressurized membrane: Coefficient of restitution
Physical Review E, 2023 Pressurized membranes are usually used for low cost structures (e.g., inflatable beds), impact protections (e.g., airbags), or sport balls. The last two examples deal with impacts on the human body. Underinflated protective membranes are not effective whereas overinflated objects can cause injury at impact. The coefficient of restitution represents the
Darbois Texier, Baptiste, Tadrist, Loïc
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Air Pressure and Coefficient of Restitution of a Ball [PDF]
International Scholastic Journal of Science, 2013 The relationship between the pressure of a ball and its coefficient of restitution was investigated, a rubber handball was inflated to eight varying air pressures and then dropped from a constant height. With measurements of its mass, circumference,
JuWon Kim, Chanhyeok Yim
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Coefficient of Restitution Interpreted as Damping in Vibroimpact [PDF]
Journal of Applied Mechanics, 1975 During impact the relative motion of two bodies is often taken to be simply represented as half of a damped sine wave, according to the Kelvin-Voigt model. This is shown to be logically untenable, for it indicates that the bodies must exert tension on one another just before separating.
Hunt, Kenneth, Crossley, Erskine
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Coefficient of restitution of colliding viscoelastic spheres [PDF]
Physical Review E, 1999 9 pages, 1 ...
Ramirez, Rosa +3 more
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Estimation of the restitution coefficient by strain measurement
EPJ Web of Conferences, 2015 In order to clarify the collision phenomenon of the traffic machine in motion, such as automobile and aircraft, it is necessary to examine not only the deformation and the behavior of composed structural member but also the dynamic characteristic of ...
Nishimura Naoya +4 more
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