Results 61 to 70 of about 391,243 (302)

The Coefficient of Friction of Soccer Balls

Proceedings, 2020
Nine soccer balls were tested for their friction against a leather sheet, using a force plate. An average normal force of 63.6 N was applied and the movement of the ball had an average velocity of 15 mm/s.
Adin Ming Tan, Yehuda Weizman, Firoz Alam, Franz Konstantin Fuss   +3 more
doaj   +1 more source

Assessment of the Tribological Performance of Bio-Based Lubricants Using Analysis of Variance

Advances in Mechanical and Materials Engineering, 2023
The purpose of this article is to determine the coefficient of friction of the DC04 steel sheet using a specially designed flat die strip drawing test.
Marek Szewczyk, Krzysztof Szwajka
doaj   +1 more source

Nonlinear shear wave interaction at a frictional interface: Energy dissipation and generation of harmonics

, 2011
Analytical and numerical modelling of the nonlinear interaction of shear wave with a frictional interface is presented. The system studied is composed of two homogeneous and isotropic elastic solids, brought into frictional contact by remote normal ...
Meziane, A., Norris, A. N., Shuvalov, A. L.   +2 more
core   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

Advanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan, David Bürger, Gunther Eggeler, Oleg Shchyglo, Ingo Steinbach, Muhammad Adil Ali   +5 more
wiley   +1 more source

摩擦系数对齿轮接触疲劳寿命的影响

Jixie chuandong, 2002
The friction coefficient of two additives and two industry gear lubricant were investigated in the four ball tester,static and dynamic friction coefficient were investigated in stationary dynamic friction coefficient test machine.
夏延秋, 丁津原, 马先贵, 韩宁, 刘维民, 薛群基   +5 more
doaj  

Curious behaviour of the diffusion coefficient and friction force for the strongly inhomogeneous HMF model

, 2006
We present first elements of kinetic theory appropriate to the inhomogeneous phase of the HMF model. In particular, we investigate the case of strongly inhomogeneous distributions for $T\to 0$ and exhibit curious behaviour of the force auto-correlation ...
Antoni, Bouchet, Bouchet, Chandrasekhar, Chandrasekhar, Chavanis, Chavanis, Chavanis, Chavanis, Chavanis, Chavanis, Chavanis, Chavanis, Chavanis, Chavanis, Inagaki, Kadomtsev, Kandrup, Kandrup, Konishi, Lynden-Bell, Lynden-Bell, P. H. Chavanis, Padmanabhan, Rapisarda, Tremaine, Willis, Yamaguchi   +27 more
core   +2 more sources

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

FRICTION COEFFICIENT OF DIAMOND WIRE SAW

Rudarsko-geološko-naftni Zbornik, 1998
In order to estimate the diamond wire saw upon quarrying of dimension stone, it is necessary to know the value of a friction coefficient on the driving pulley of the saw.
Siniša Dunda
doaj  

Load capacity of a new rope-climbing robot

MATEC Web of Conferences, 2017
Theoretical analysis and experimental research are carried out on the load capacity of one new kind rope-climbing robot, this robot could lift load along the rope depends on the friction between rope and wheel of the robot.
Yin Hao, Ye Peiqing, Zhao Tong, Zhang Hui   +3 more
doaj   +1 more source

Friction Characteristics of Post-Tensioned Tendons of Full-Scale Structures Based on Site Tests

Advances in Civil Engineering, 2020
In the design of prestressing concrete structures, the friction characteristics between strands and channels have an important influence on the distribution of prestressing force, which can be considered comprehensively by curvature and swing friction ...
Haoyun Yuan, Yuan Li, Bin Zhou, Shuanhai He, Peizhi Wang   +4 more
doaj   +1 more source