Results 21 to 30 of about 391,243 (302)

Study of the influence of compressive force on the coefficients of friction for wool-containing fabrics [PDF]

open access: yesE3S Web of Conferences, 2020
Making use of appliance MXD-02, Labthink, China, coefficient of friction at rest with sliding tendency (static coefficient of friction) and coefficient of friction at sliding (dynamic coefficient of friction) for fabrics made of 100% wool as well as ...
Stoyanova Raya   +2 more
doaj   +1 more source

Lubricity of carbon nitride coatings in humid nitrogen gas environment

open access: yesNihon Kikai Gakkai ronbunshu, 2014
In this study, friction coefficient of 0.018 in averaged value could be achieved under humid nitrogen gas condition (0.5-40 %RH) with frictional pair of amorphous carbon nitride (CNX) coatings. The coatings investigated were deposited onto Si3N4 ball and
Naohiro YAMADA   +2 more
doaj   +1 more source

Effect of the coefficient of friction of a running surface on sprint time in a sled-towing exercise [PDF]

open access: yes, 2013
This is an Author's Accepted Manuscript of an article published in Sports Biomechanics, 12(2), 175 - 185, 2013, copyright Taylor & Francis, available online at: http://www.tandfonline.com/10.1080/14763141.2012.726638,This study investigated the effect of
Cooper, JE
core   +1 more source

Experiment research on friction coefficient between a steel plate and rail in transient sliding thermal contact through a pendulum

open access: yesResults in Physics, 2018
The main goal of this article is to study the friction coefficient of wheel/rail transient sliding thermal contact through a pendulum. A new method is firstly established to analyze the friction coefficient.
Yunpeng Wei   +3 more
doaj   +1 more source

Forming Parameters on Friction during Single Point Incremental Forming

open access: yesAdvances in Materials Science and Engineering, 2022
Friction in the single point incremental forming (SPIF) process is the main factor affecting the surface quality and forming performance of the workpiece.
Qing Xu, Zimeng Yao
doaj   +1 more source

Effect of temperature on the frictional behavior of 18CrNiMo7-6 under lubrication

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2022
In the process of gear meshing, the tooth surface will produce friction heat, which will in turn act on the friction coefficient. The temperature does not directly affect the friction coefficient of the gear tooth surface, but indirectly through ...
Fei LIU   +4 more
doaj   +1 more source

Wall slip of complex fluids: interfacial friction or slip length? [PDF]

open access: yes, 2018
Using a dynamic Surface Force Apparatus, we demonstrate that the notion of slip length used to describe the boundary flow of simple liquids, is not appropriate for viscoelastic liquids.
Barraud, Chloé   +5 more
core   +1 more source

Determining lubrication properties of hierarchical groove patterns using mesoscale raster-scanning measurements

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2022
In this study, we characterized the lubrication properties of two different hierarchical patterns comprising micro- and nanogrooves. The friction coefficient distribution was measured using a convex lens—the friction coefficients were found to ...
Reina SHIOJIMA   +3 more
doaj   +1 more source

Geometry of Frictionless and Frictional Sphere Packings [PDF]

open access: yes, 2001
We study static packings of frictionless and frictional spheres in three dimensions, obtained via molecular dynamics simulations, in which we vary particle hardness, friction coefficient, and coefficient of restitution.
A.S. Clarke   +18 more
core   +3 more sources

Experimental Study of Effects of the Third Medium on the Maximum Friction Coefficient between Wheel and Rail for High-Speed Trains

open access: yesShock and Vibration, 2021
The changes of the friction coefficient between wheel and rail affect the wheel-rail adhesion characteristics of high-speed trains. The adhesion state in the wheel-rail contact area could be distinguished by the maximum friction coefficient between wheel
He Ma, Yan Niu, Xiaochun Zou, Jun Zhang
doaj   +1 more source

Home - About - Disclaimer - Privacy