Nonlinear vibration response of a helicopter supercritical tail rotor drive shaft equipped with a dry friction damper [PDF]
Journal of Intelligent Manufacturing and Special Equipment, 2022 Purpose – The supercritical design of tail rotor drive shaft has attracted more attention in helicopter design due to its high power–weight ratio and low maintenance cost.
Liyao Song +4 more
doaj +1 more source
EFFECT OF TIP RADIUS OF THE INDENTERS ON FRICTION COEFFICIENT OF THE SCRATCHED METALLIC SHEETS [PDF]
Journal 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]
Journal 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
Journal 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]
Journal 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
Hangkong 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
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Friction and wear characteristics of silicon nitride ceramics under dry friction condition
Materials 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
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Dry friction of microstructured polymer surfaces inspired by snake skin [PDF]
Beilstein Journal of Nanotechnology, 2014 Lars Heepe +2 more
exaly +2 more sources
Dynamic analysis of dry friction system based on improved bilinear hysteretic model
Journal 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
A study on the vibration dissipation mechanism of the rotating blade with dovetail joint
Journal 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