Results 21 to 30 of about 25,310 (261)

Optimization of friction and electrical resistance performance in graphite-copper electrical contacts using Taguchi-based grey relational analysis [PDF]

FME Transactions
This study aims to investigate how the load, the intensity, and the polarity of electric current influence the frictional behavior and electrical resistance between a graphite pin loaded against a rotating copper disc.
Bekhouche Djamel, Bouchoucha Ali, Zaidi Hamid   +2 more
doaj   +1 more source

Effect of braking speed on the property of high-performance copper-based brake pads

Fenmo yejin jishu, 2021
High-performance copper-based brake pads were prepared by the traditional powder metallurgy method, and the commercial copper-based brake pads were used as a comparison.
WEI Dong-bin, ZHANG Lin, ZHANG Peng, WU Pei-fang, CAO Jing-wu, SHIJIA Cai-rang, DING Xiang-ying, ZHAO Shang-jie, QU Xuan-hui   +8 more
doaj   +1 more source

On the effect of variable coefficient of friction on the horizontal resistance of the stamp

Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, 2018
Article deal with the contact problems on the surface interaction of rigid stamps with a deformed layered provided that the variable friction coefficients arise in the contact zone as a function of the coordinate under the horizontal motion of stamps. The cause of the variable friction coefficients arising may be surface phenomena induced by a complex ...
V.A. Babeshko, O.V. Evdokimova, O.M. Babeshko, Y.B. Eletskiy, V.V. Lozovoy, V.S. Evdokimov, D.A. Khripkov   +6 more
openaire   +1 more source

Calculation model for ventilation friction resistance coefficient by surrounding rock roughness distribution characteristics of mine tunnel [PDF]

Scientific Reports, 2022
AbstractReal-time mine ventilation network solution is the core way to realize the actual intelligent ventilation, and ventilation friction resistance coefficient is a significant parameter of network solution. With the help of fractal theory to characterize the three-dimensional roughness characteristics of tunnel surrounding rock.
Ke Gao, Zhipeng Qi, Yujiao Liu, Jinyi Zhang   +3 more
openaire   +3 more sources

METHOD OF THE DRIVE POWER DETERMINATION OF THE MECHANISMS OF THE BRIDGE CRANE MOVEMENT CONSIDERING THE ROLLING FRICTION

Nauka ta progres transportu, 2015
Purpose. The value of drive resistance to its movement is the main parameter at calculating the drive power of bridge crane. The value of the wheel rolling friction on the rails is one of the important parts of the resistance to movement. It is necessary
V. M. Bohomaz, L. M. Bondarenko, K. Ts. Hlavatskyi, K. O. Sokol   +3 more
doaj   +1 more source

Analysis of Static Characteristic of Hydrodynamic Bearing with Different Surface Roughnesses

Jixie chuandong, 2020
When the working surface roughness of hydrodynamic sliding bearing reaches the same magnitude （micron） as the oil film thickness， the influence of surface roughness on the characteristic parameters of bearing cannot be ignored.
Hong Guo, Lanlan Song, Shaolin Zhang, Weipei He   +3 more
doaj  

Correlation between roughness, film thickness, and friction coefficient with pitting wear resistance of spur gears

The International Journal of Advanced Manufacturing Technology, 2023
Abstract The present investigation aims correlate the roughness, film thickness and friction coefficient with pitting wear resistance along the rolling-sliding contact fatigue of forged and plasma nitrided gears. The hypothesis of this work is that the pitting wear resistance of forged gears can be greatly improved by pulsed plasma nitriding ...
Rafael Luciano Dalcin, Valcir Marques de Menezes, Alexandre da Silva Rocha, Samara Paulin de Moraes, Leonardo Bottega Affonso, Tiago Cousseau, Carlos Henrique da Silva   +6 more
openaire   +1 more source

Study on Properties of Polytetrafluoroethylene Doped CoMoP Alloy Films Prepared by Plating Method

International Journal of Electrochemical Science, 2022
Polymer PTFE was added into the plating bath to prepare CoMoP/PTFE by plating method. Deposition rate, thickness, friction coefficient, magnetic performance and corrosion resistance of CoMoP/PTFE alloy film was investigated.
Kangchen Shao, Hongyuan Shi
doaj   +1 more source

ABRASIVE WEAR RESISTANCE OF PLASTICALY DEFORMED CARBON STEEL [PDF]

Journal of the Egyptian Society of Tribology, 2017
The scratch test is performed to measure the abrasion wear resistance of carbon steel after upsetting at different strain rate. Besides, the deformation effect during upsetting is discussed on the friction process involved during the scratching in order ...
S. Z. EL-Abden
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source