Results 11 to 20 of about 173,346,329 (296)

Static Friction Coefficient Depends on Geometry

open access: yesJournal of Tribology
Abstract Classical theories state that the friction coefficient is independent of geometry, depending only on the real contact area determined by roughness. However, experimental evidence shows significant differences between static and dynamic friction coefficients.
Zhang, Shubo, Ciavarella, Michele
openaire   +2 more sources

Static Friction Coefficient into Cylindrical Joints Assemblies [PDF]

open access: yesTribology in Industry, 2015
The aim of this research is to analyze the behavior of the transition between static and dynamic friction coefficient in a cylindrical joint, in order to reach high reliability when loads are acting. The friction between cylindrical contact faces is analyzed both in dry and lubricated conditions up to the moment that the assembly starts moving while ...
A. Todi-Eftimie   +3 more
openaire   +3 more sources

STATIC FRICTION COEFFICIENT MODEL OF JOINT SURFACES CONSIDERING ASPERITIES INTERACTION AND SUBSTRATE DEFORMATION (MT)

open access: yesJixie qiangdu, 2023
A statistical model of static friction factor of joint surfaces was deduced, which was more in line with the actual situation and takes into account the interaction of asperities and the deformation of the substrate.
XU YongTai, ZHANG XueLiang, ZHAO HaiLu
doaj   +2 more sources

Calibration and analysis of discrete element simulation parameters of Chinese cabbage seeds.

open access: yesPLoS ONE, 2022
ObjectiveTo improve the accuracy of parameters used in discrete element simulation test of Chinese cabbage seeds harvesting process.MethodsFirstly, the key physical parameters of Chinese cabbage seeds were measured. According to the results, the discrete
Shengsheng Wang   +4 more
doaj   +1 more source

Laboratory device detecting the magnitude of the static friction coefficient of brake lining [PDF]

open access: yes, 2021
The paper describes the design of laboratory equipment, which was created for verification and determination of the value of the static coefficient of friction in the contact surfaces of the brake lining and the brake drum of the drum brake with external
Hrabovský, Leopold   +3 more
core   +2 more sources

Experimental investigation of the frictional behavior of single glass fiber filament

open access: yesJournal of Engineered Fibers and Fabrics, 2023
Fiber friction behaviors are crucial for understanding the ubiquitous frictional damage phenomena in the manufacturing and service processes of multiscale textile reinforcements. This paper investigates the influence of relative velocity and applied load
Yang Liu
doaj   +1 more source

Calibration and experiment of discrete element model parameters of Zanthoxylum bungeanum

open access: yesFrontiers in Mechanical Engineering, 2023
Zanthoxylum bungeanum is a characteristic spice in culinary culture. This article focuses on the lack of intrinsic and contact parameters for Zanthoxylum bungeanum and studies the intrinsic parameters of the discrete element for tribute pepper from ...
Jian Wang   +5 more
doaj   +1 more source

Friction coefficient estimation using an unscented Kalman filter [PDF]

open access: yes, 2014
The friction coefficient between a railway wheel and rail surface is a crucial factor in maintaining high acceleration and braking performance of railway vehicles; therefore, monitoring this friction coefficient is important.
Liang, Bo, Zhao, Yunshi, Iwnicki, Simon
core   +1 more source

Development of the high precision measurement device of static friction characteristics between surfaces at the fixed coupling section

open access: yesNihon Kikai Gakkai ronbunshu, 2019
Mechanical systems have many joints within. It is well known that the parameters such as contact stiffness, static friction coefficient, kinetic friction coefficient and attenuation coefficient affect static, kinetic, thermal and motion characteristic of
Fumihiko INAGAKI   +7 more
doaj   +1 more source

EFFECT OF ELECTRIC STATIC CHARGE ON FRICTION COEFFICIENT DISPLAYED BY SLIDING OF RUBBER SOLE AGAINST EPOXY FLOOR REINFORCED BY COPPER WIRES [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2015
Safe walking on the floor is evaluated by the static friction coefficient. Walking and creeping can generate electric static charge of intensity depends on the material of floor.
W. Y. Ali   +3 more
doaj   +1 more source

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