Results 11 to 20 of about 818,671 (331)

Study of the Rolling Friction Coefficient between Dissimilar Materials through the Motion of a Conical Pendulum. [PDF]

open access: yesMaterials (Basel), 2020
The rolling friction phenomenon is encountered in a wide range of applications and when two different materials are involved, quantitative characterization is necessary.
Alaci S, Muscă I, Pentiuc ȘG.
europepmc   +2 more sources

Determination of the Angle of Repose and Coefficient of Rolling Friction for Wood Pellets

open access: yesAgronomy, 2022
The determination of the angle of repose for granular materials is indispensable for their handling and the design of containers and technological processing equipment.
M. Madrid   +3 more
semanticscholar   +1 more source

DEM Parameter Calibration of Maize Seeds and the Effect of Rolling Friction

open access: yesProcesses, 2021
A set of suitable parameter values is crucial in discrete element method (DEM) simulations. As a non-spherical particle, the coefficients of rolling friction between maize seed particles and between the seed particles and the boundary are hard to measure
Long Zhou   +7 more
semanticscholar   +1 more source

Investigation of interaction effect between static and rolling friction of corn kernels on repose formation by DEM

open access: yesInternational Journal of Agricultural and Biological Engineering, 2021
The coefficient of static friction (SF), the coefficient of rolling friction (RF) for particles are two key parameters affecting the repose angle formation and flow characteristics.
Shi Linrong   +5 more
semanticscholar   +1 more source

Rolling friction in a 3D printed stringless pendulum

open access: yesEuropean journal of physics, 2021
The motion of a billiard ball rolling on a 3D printed stringless pendulum was studied by video analysis. This allows for the measurement of the eigenfrequency as well as the coefficients of viscous drag and rolling friction.
C. Hanisch, M. Ziese
semanticscholar   +1 more source

Evaluation of friction calculation methods for rolling bearings

open access: yesForschung im Ingenieurwesen, 2023
In gearboxes, rolling bearing power losses often make up a large amount of the total gearbox power losses. Therefore, an exact calculation of rolling bearing power losses is very important for resource and energy efficient gearbox design.
M. Zander, M. Otto, T. Lohner, K. Stahl
semanticscholar   +1 more source

Determination of the coefficient of rolling friction of irregularly shaped maize particles by using discrete element method

open access: yesInternational Journal of Agricultural and Biological Engineering, 2020
The coefficient of rolling friction is a foundation parameter for conducting particles simulation, however, which of irregularly shaped maize seeds is difficult to measure. Furthermore, the coefficient of rolling friction between the simulation particles
Shi Linrong, Wuyun Zhao, B. Sun, Wei Sun
semanticscholar   +1 more source

Projection-based Iterative Learning Control for Ball-screw-driven Stage with Consideration of Rolling Friction Compensation

open access: yesIEEJ Journal of Industry Applications, 2020
Ball-screw-driven stages are feed systems that are widely used in industrial equipment such as numerically controlled machine tools. They require precise position control; however, rolling friction in the ball-screw mechanism deteriorates its control ...
Takumi Hayashi   +3 more
semanticscholar   +1 more source

Effects of solid friction modifier on friction and rolling contact fatigue damage of wheel-rail surfaces

open access: yesFriction, 2021
In railway network, friction is an important factor to consider in terms of the service behaviors of wheel-rail system. The objective of this study was to investigate the effect of a solid friction modifier (FM) in a railway environment.
J. Song   +8 more
semanticscholar   +1 more source

Atomic Scale Sliding and Rolling of Carbon Nanotubes [PDF]

open access: yes, 1999
A carbon nanotube is an ideal object for understanding the atomic scale aspects of interface interaction and friction. Using molecular statics and dynamics methods different types of motion of nanotubes on a graphite surface are investigated.
A. Buldum   +16 more
core   +3 more sources

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