Results 11 to 20 of about 10,082 (264)

Measuring Rolling Friction at the Nanoscale. [PDF]

open access: yesLangmuir
ISSN:1520 ...
Scherrer S   +4 more
europepmc   +4 more sources

Quantum Rolling Friction

open access: yesPhysical Review Letters, 2019
An atom moving in a vacuum at constant velocity and parallel to a surface experiences a frictional force induced by the dissipative interaction with the quantum fluctuations of the electromagnetic field. We show that the combination of nonequilibrium dynamics, anomalous Doppler effect and spin-momentum locking of light mediates an intriguing interplay ...
F. Intravaia   +4 more
openaire   +4 more sources

Corrosion Resistance and Tribological Properties of Laser Cladding Layer of H13 Die Steel Strengthened by Ultrasonic Rolling

open access: yesChinese Journal of Mechanical Engineering, 2022
Laser cladding is a new surface repair method that can improve the wear and corrosion resistance of substrate surfaces. However, the cladding layer typically exhibits a rough surface, high hardness and large residual tensile stress, and thus requires ...
Kaikui Zheng   +3 more
doaj   +1 more source

V. On rolling-friction [PDF]

open access: yesProceedings of the Royal Society of London, 1875
Abstract The motion of a roller or wheel on a surface is always attended with resistance. Coulomb made some experiments with wooden rollers on a wooden plane, from which he deduced two laws, viz. that the resistance is proportional to the weight of the roller, and inversely proportional to its diameter.
openaire   +1 more source

Determination of discrete element simulation parameters of rice milling machine

open access: yesShipin yu jixie, 2023
Objective: To solve the problem that the roller is inconvenient to operate and the concept of rolling friction coefficient and sliding friction coefficient is confused. Methods: EDEM software was used to simulate the white milling process.
ZHANG Ning   +3 more
doaj   +1 more source

Vibration Characteristics of Rolling Mill System under Constraints of the Nonlinear Spring Force and Friction Force from Hydraulic Cylinder

open access: yesShock and Vibration, 2021
Considering the two kinds of nonlinear constraints of rolling mill hydraulic cylinder, spring force and friction force, the vibration model of rolling mill system is established.
Zhaolun Liu   +3 more
doaj   +1 more source

Computational simulation of rolling process of polycrystalline plane strain model using second-order homogenization finite element method

open access: yesNihon Kikai Gakkai ronbunshu, 2023
The computational simulation of the rolling process of the polycrystalline metal plate is performed using the second-order homogenization finite element (FE) method.
Makoto UCHIDA   +2 more
doaj   +1 more source

Friction of physisorbed nanotubes: rolling or sliding? [PDF]

open access: yesNanoscale, 2020
Rolling is the preferential motion of laterally pushed nanotubes (NT). Sliding can occur for multi-walled NT that form incommensurate interfaces. A peculiar supra-linear scaling of dynamic friction with NT size is observed in rolling multi-walled NT.
Davide Mandelli, Roberto Guerra
openaire   +4 more sources

Study on Rolling Friction

open access: yesJournal of the Japan Society of Precision Engineering, 1978
This report is a study of the rolling friction between a steel ball and two flat steel plates having various surface roughnesses. The results obtained are as follows.(1) With repeated traversals on the same track, the plastic peformation gradually comes to saturated, and the equilibrium state is reached, then the deformation becomes primarily elastic ...
ISHIKAWA, Yoshio, SUDA, Minoru
  +6 more sources

Modeling and experimentation of the friction force of linear rolling guide pair considering oil film resistance

open access: yes工程科学学报, 2017
For an accurate prediction of the friction experienced by the linear rolling guide and the factors affecting it, the fluid lubrication state of the rail was considered, and the effect of the friction of the linear guide on the ball contact angle and ...
ZHANG Wei, WANG Min, KONG De-shun
doaj   +1 more source

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