Results 11 to 20 of about 30,084 (266)

EFFECT OF TIP RADIUS OF THE INDENTERS ON FRICTION COEFFICIENT OF THE SCRATCHED METALLIC SHEETS [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2013
The objective of the present work is to perform a scratch test to measure the abrasion wear resistance of metallic sheets. Besides, the deformation modes and the friction processes involved during the scratching will be investigated in order to get a ...
W. Y. Ali, M. Al-Grafi, M. Mahmoud
doaj   +1 more source

FRICTION COEFFICIENT BETWEEN CLOTHES AND CAR SEAT COVERS [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2011
The present work discusses the friction coefficient displayed by clothes sliding against car seat covers. The frictional performance of two groups of covers, the first was contained five different types of synthetic leather and the second contained nine ...
A. A. Sulaimany   +2 more
doaj   +1 more source

Effect of the dry friction damping structure on the localized vibration of mistuned bladed disk

open access: yesJournal of Hebei University of Science and Technology, 2019
In order to study the effect of the dry friction damping structure on the localized vibration of mistuned bladed disk, the forced vibration response of a mistuned bladed disk with dry friction damping structure is investigated by using three-dimension ...
Yalin LIU   +3 more
doaj   +1 more source

DRY AND WATER WETTED SLIDING OF RUBBER ON EPOXY FLOORING FILLED BY THERMOPLASTIC POLYMERS [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2013
The aim of the present work is to investigate the friction of epoxy flooring materials filled by thermoplastic polymers and sliding against rubber. Experiments were carried out at dry and water wetted sliding conditions.
Y. M. Youssef, M. I. Khashaba, W. Y. Ali
doaj   +1 more source

Literature Survey of Dry Friction Damper Model and Analysis Method forDepressing Vibration of Rotating Blade

open access: yesHangkong gongcheng jinzhan, 2018
Rotating blades are key components in aircraft engine, the vibration characteristics and vibration reduction technology is rather important for engine performance, structural integrity, and work reliability.
Qin Jie, Yan Qun, Huang Wenchao
doaj   +1 more source

Friction and wear characteristics of silicon nitride ceramics under dry friction condition

open access: yesMaterials Research Express, 2021
In order to reveal the friction properties and improve the wear resistance of silicon nitride ceramic materials, a calculation model of static friction coefficient of silicon nitride ceramic is established.
Jinmei Yao   +7 more
doaj   +1 more source

Dynamic analysis of dry friction system based on improved bilinear hysteretic model

open access: yesJournal of Hebei University of Science and Technology, 2018
Considering that the dry friction force only shows stiffness characteristic when the normal contact force is high and combining with the existing conclusions of experimental research, the bilinear hysteresis model is improved.
Bingbing HE   +4 more
doaj   +1 more source

Pinning of interfaces by localized dry friction [PDF]

open access: yesJournal of Differential Equations, 2020
We consider a model for the evolution of an interface in a heterogeneous environment governed by a parabolic equation. The heterogeneity is introduced as obstacles exerting a localized dry friction. Our main result establishes the emergence of a rate-independent hysteresis for suitable randomly distributed obstacles, i.e., interfaces are pinned by the ...
Luca Courte   +2 more
openaire   +6 more sources

A study on the vibration dissipation mechanism of the rotating blade with dovetail joint

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2021
The vibration dissipation mechanism of the rotating blade with a dovetail joint is studied in this paper. Dry friction damping plays an indispensable role in the direction of vibration reduction.
Chaofeng Li   +3 more
doaj   +1 more source

Effect of carbon nanotubes on friction and wear of a piston ring and cylinder liner system under dry and lubricated conditions

open access: yesFriction, 2016
This study involves the application of carbon nanotubes (CNTs) to a piston ring and cylinder liner system in order to investigate their effect on friction and wear under dry and lubricated conditions.
Zhinan Zhang   +3 more
doaj   +1 more source

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