Measuring the coefficient of restitution for all six degrees of freedom
Sign Up to like & getrecommendations! Published in 2019 at "Granular Matter"
DOI: 10.1007/s10035-019-0871-0
Abstract: The coefficient of restitution is a cornerstone empirical parameter of any model where energy is dissipated by particle collisions. However, completely determining this parameter experimentally is challenging, as upon collision, a particle’s material properties (such… read more here.
Keywords: coefficient restitution; six degrees; measuring coefficient; restitution ... See more keywords
A calculation model of the normal coefficient of restitution based on multi-factor interaction experiments
Sign Up to like & getrecommendations! Published in 2020 at "Landslides"
DOI: 10.1007/s10346-020-01556-7
Abstract: As a key input parameter for simulating the moving trail of a rockfall, the magnitude of the normal coefficient of restitution ( R n ) directly affects the prediction accuracy. However, few comprehensive and accurate… read more here.
Keywords: normal coefficient; angular blocks; interaction; coefficient restitution ... See more keywords
Laboratory investigation of the effect of the rotational speed on the coefficient of restitution
Sign Up to like & getrecommendations! Published in 2021 at "Engineering Geology"
DOI: 10.1016/j.enggeo.2021.106196
Abstract: Abstract In the process of impact-rebound, rockfalls with an initial rotational speed (RS) often undergo a violent transformation between rotational energy and translational energy, which may affect the coefficient of restitution (COR). However, owing to… read more here.
Keywords: coefficient restitution; coefficient; impact; rotational speed ... See more keywords
Collision dynamics of wet solids: Rebound and rotation
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DOI: 10.1016/j.powtec.2016.12.088
Abstract: Abstract Knowledge about collision dynamics and energy dissipation during particle collision is fundamental for the description of particulate processes. However, such knowledge is still missing for particulate processes that involve liquids. Therefore, in this work… read more here.
Keywords: energy; initial rotation; collision; collision dynamics ... See more keywords
Experimental measurement of the normal coefficient of restitution of micro-particles impacting on plate surface in different humidity
Sign Up to like & getrecommendations! Published in 2018 at "Powder Technology"
DOI: 10.1016/j.powtec.2018.05.022
Abstract: Abstract The coefficient of restitution is widely used to characterize the energy loss rate in numerical simulations of discrete element modelling. The accurate input parameters can obtain the accurate simulation results for discrete element modelling.… read more here.
Keywords: restitution; micro particles; normal coefficient; different humidity ... See more keywords
Impact of Structural Parameters on the Collision Characteristics and Coefficient of Restitution of Soybean Particles on Harvester’s Cleaning Screens
Sign Up to like & getrecommendations! Published in 2024 at "Agriculture"
DOI: 10.3390/agriculture14071201
Abstract: Inadequate parameter design of the cleaning device in soybean combine harvesters leads to elevated levels of machine harvesting losses and impurity rates. To provide fundamental data for the optimization of structural parameters of soybean cleaning… read more here.
Keywords: speed; coefficient restitution; collision; wall ... See more keywords
Effect of Moisture Content and Normal Impact Velocity on the Coefficient of Restitution of ‘Memory’ Wheat Grains
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DOI: 10.3390/app15116055
Abstract: This study analyses the dynamic impact between winter wheat grains (‘Memory’ cultivar) and a flat metal surface under normal collisions. Four moisture levels (7%, 10%, 13% and 16%) and impact velocities from 1.0 to 4.5… read more here.
Keywords: moisture; coefficient restitution; velocity; velocity coefficient ... See more keywords
Experimental Determination of the Coefficient of Restitution for Selected Modern Hybrid Composites
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DOI: 10.3390/ma14195638
Abstract: Composite materials (fiber reinforced plastics, FRPs) are successfully utilized in the production of various mechanical devices, including land vehicles, marine vessels, and aircrafts. They are primarily used for the production of body parts and hulls.… read more here.
Keywords: experimental determination; value coefficient; coefficient; coefficient restitution ... See more keywords
Effects of the impact angle on the coefficient of restitution in rockfall analysis based on a medium-scale laboratory test
Sign Up to like & getrecommendations! Published in 2018 at "Natural Hazards and Earth System Sciences"
DOI: 10.5194/nhess-18-3045-2018
Abstract: Abstract. 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. The effects of… read more here.
Keywords: impact angle; coefficient restitution; scale laboratory; test ... See more keywords