Results 61 to 70 of about 173,368,104 (254)

FRICTION COEFFICIENT DISPLAYED BY SLIDING OF FOOTBALL ON SURFACE OF THE SHOE [PDF]

Journal of the Egyptian Society of Tribology
The friction coefficient displayed by sliding of football on surface of the shoe is discussed in the present work. Several coatings are proposed in order to provide a relatively high friction to control shooting, dribbling performance and passing ...
K. M. Atia, A. M. A. Mohamed, Zeinab A. H., A. M. Al-Kabbany, A. M. Samy, M. K. Mohamed, W. Y. Ali, H. M. Abdu   +7 more
doaj   +1 more source

FRICTION COEFFICIENT DISPALYED BY SLIDING SURFACES LUBRICATED BY SAND CONTAMINATED OIL [PDF]

Journal of the Egyptian Society of Tribology, 2014
The present work discusses the effect of sand particles, contaminated in the lubricating oil, as well as sand particles embedded in the sliding surfaces, on the friction coefficient displayed by polyamides sliding against steel. Stribeck curve is used to
A. S. Al-Osaimy
doaj   +1 more source

Calibration of discrete element simulation parameters for different kinds of rice grains

Shipin yu jixie
ObjectiveTo provide a theoretical reference for the optimal design of the polisher structure by comparing the differences in the contact parameters of different kinds of rice.MethodsUsing bench test and simulation test, and combining with MATLAB software
ZHU Linfeng, LIU Xiaopeng, ZHANG Yonglin, SONG Shaoyun, YIN Qiang, CAO Meili   +5 more
doaj   +1 more source

Friction Coefficient Compensation Control in Synchronizer Synchronization Process for Transmission

Applied Sciences, 2019
In the synchronization process of a synchronizer, the friction coefficient of the friction cone is changed because of friction heat. In this paper, the influence of a changing friction coefficient on shift quality was analyzed.
Hao Yan, Zhaoping Xu, Juntang Yuan, Meiyan Liu, Wenqing Ge   +4 more
doaj   +1 more source

Elastic–Plastic Modeling and Experimental Characterization of Granular Jamming Actuators

Advanced Engineering Materials, EarlyView.
Granular jamming enables rapid switching between soft and rigid mechanical states. Here, a reduced‐order elastic‐perfectly‐plastic beam framework captures pressure‐dependent loading, unloading, residual deformation, and hysteresis in jammed beams, while matching three‐point bending experiments across materials and geometries. The framework links design
Saheli Patel, Prashant K. Purohit, Jordan R. Raney   +2 more
wiley   +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, A. A. AlGethami, W. Y. Ali   +2 more
doaj   +1 more source

Thermal Cycle–Microstructure–Property Relationships in Rail Steel Heat‐Affected Zone Simulated by Gleeble

Advanced Engineering Materials, EarlyView.
Microstructural evolution of premium rail steel during flash butt welding (FBW), comparing physically simulated heat‐affected zones with actual weld regions. Thermal cycles induce phase transformations and microstructural heterogeneity that influence weld quality and mechanical performance. These findings provide insights into optimizing FBW parameters
Emmanoelle Cintra da Cunha Araújo, João Marcos da Silva Nunes, Marcelly Cristiny Nunes de Carvalho, Alex Rojas, Cristie Luis Kugelmeier, Cristhian Ricardo Loayza Loayza, João Carlos Ferreira, Maria Veronica Goncalves Rodrigues, Rute Sayuri Kano, Isaac Araújo Furtado, Jacyara Dalylla da Silva Nunes, Jhonatan Peres de Sousa, Marcos Natan da Silva Lima, Eden Santos Silva, Gedeon Silva Reis, Samuel Filgueiras Rodrigues   +15 more
wiley   +1 more source

Simulation of Grinding Surface Creation – A Single Grit Approach [PDF]

, 2010
The paper presents an investigation of grinding material removal mechanism using finite element method. Understanding of grinding removal mechanism relies on the investigation of material removal by each individual grain.
Opoz, Tahsin Tecelli, Xun Chen, Chen, Xun, Tahsin Tecelli Öpöz   +3 more
core   +1 more source

Investigation of Resonance Characteristics of More Than 10 000 Metal‐Coated Silicon MEMS Cantilevers Using Machine Learning

Advanced Engineering Materials, EarlyView.
More than 10 000 metal‐coated silicon MEMS cantilevers are fabricated and characterized to build a large‐scale experimental dataset spanning multiple vibrational modes. Machine learning algorithms are benchmarked to predict resonance frequency and quality factor, with ensemble based models achieving accuracy approaching experimental uncertainty.
Sina Zare Pakzad, Saurabh Thorat, Andre Loch Gesing, Dominik Huber, Christopher Zellner, Patrick Egger, Georg Pfusterschmied, Ulrich Schmid, Michael Schneider   +8 more
wiley   +1 more source

Effect of the coefficient of friction of a running surface on sprint time in a sled-towing exercise [PDF]

, 2013
This is an Author's Accepted Manuscript of an article published in Sports Biomechanics, 12(2), 175 - 185, 2013, copyright Taylor & Francis, available online at: http://www.tandfonline.com/10.1080/14763141.2012.726638,This study investigated the effect of
Cooper, JE
core   +1 more source