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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Interval of restitution coefficient for chattering in impact damper
Journal of Low Frequency Noise, Vibration and Active Control, 2022 Based on the impact damper, a dynamic model of a non-fixed constrained collision system was established. The coefficient of restitution is used as the main control parameter to analyze the system’s periodic movement and its bifurcation region.
Zongqi Li, Yanchen Du
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Mathematics, 2022 The effect of impact coefficient of restitution on the nonlinear response of the follower is investigated at different follower guides’ clearances, different cam speeds and different followers’ offsets.
Louay S. Yousuf
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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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Ratio of Loss and Storage Moduli Determines Restitution Coefficient in Low-Velocity Viscoelastic Impacts [PDF]
, 2020 Impact tests are an important tool to analyze dynamic material properties of viscoelastic media in technology and biology. In this context, rigorous contact mechanical models of the collision problem are necessary to adequately interpret data from impact
Willert, Emanuel
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Coefficient of restitution of colliding viscoelastic spheres [PDF]
Physical Review E, 1999 We perform a dimension analysis for colliding viscoelastic spheres to show that the coefficient of normal restitution $ $ depends on the impact velocity g as =1- _1g^{1/5}+ _2g^{2/5}\mp..., in accordance with recent findings. We develop a simple theory to find explicit expressions for coefficients _1 and _2.
Ramirez, Rosa +3 more
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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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