Results 41 to 50 of about 3,215,770 (308)

Role of surface roughness in superlubricity [PDF]

, 2006
We study the sliding of elastic solids in adhesive contact with flat and rough interfaces. We consider the dependence of the sliding friction on the elastic modulus of the solids.
Persson, Bo N. J., Samoilov, Vladimir N., Tartaglino, Ugo   +2 more
core   +1 more source

Model coupling friction and adhesion for steel-concrete interfaces

, 2009
The interface behaviour between steel and concrete, during pull-out tests, is numerically investigated using an interface model coupling adhesion and Coulomb friction. This model, first developed by Raous, Cang\'emi, Cocou and Monerie (RCCM), is based on
Karray, M'hamed Ali, Raous, Michel
core   +3 more sources

Utility of a fretting device working under free displacement [PDF]

, 2009
Relative movements of low amplitudes between two materials in contact are generally reproduced on fretting devices with imposed displacement or imposed tangential force.
Fouvry, Fouvry, Fouvry, Fowkes, G.R. Yantio Njankeu Sabeya, Godet, J. Denape, J.-Y. Paris, Lambert, Lindley, Mohrbacher, Paulin, Proudhon, Ramalho, Sauger, Vincent, Vingsbo, Waterhouse, Williams, Yantio Njankeu, Yantio Njankeu Sabeya   +20 more
core   +4 more sources

Development of Urban Electric Bus Drivetrain [PDF]

, 2019
The development of the drivetrain for a new series of urban electric buses is presented in the paper. The traction and design properties of several drive variants are compared.
Chyský J., Musálek L., Novák J., Novák L., Novák M., Sivkov O.   +5 more
core   +1 more source

INFLUENCE OF REDISPERSIBLE POWDERS AND LOW-MODULAR INCLUSIONS ON THE FROST RESISTANCE OF THE FINE-GRAINED CONCRETE CONTACT ZONE

Вестник Дагестанского государственного технического университета: Технические науки, 2020
Objectives. The aim of this study was to identify variation patterns of the in-series variation coefficient of adhesive strength to base and the dependency of the frost resistance coefficient on the criterion of adhesion on prescription factors of fine ...
G. V. Nesvetaev, A. V. Dolgova, L. V. Postoy, G. N. Hadzhishalapov   +3 more
doaj   +1 more source

Experimental Study of Effects of the Third Medium on the Maximum Friction Coefficient between Wheel and Rail for High-Speed Trains

Shock and Vibration, 2021
The changes of the friction coefficient between wheel and rail affect the wheel-rail adhesion characteristics of high-speed trains. The adhesion state in the wheel-rail contact area could be distinguished by the maximum friction coefficient between wheel
He Ma, Yan Niu, Xiaochun Zou, Jun Zhang
doaj   +1 more source

Optimized Baxter Model of Protein Solutions: Electrostatics versus Adhesion

, 2004
A theory is set up of spherical proteins interacting by screened electrostatics and constant adhesion, in which the effective adhesion parameter is optimized by a variational principle for the free energy.
Odijk, Theo, Prinsen, Peter
core   +2 more sources

Creep curve measurement to support wear and adhesion modelling, using a continuously variable creep twin disc machine [PDF]

, 2013
Predictive modelling of wear and adhesion at rolling-sliding contacts such as a railway rail and wheel depends on understanding the relationship between slip and shear force at the contact surface, i.e. the creep verses force curve.
Amsler, Carroll, D.I. Fletcher, Engel, Engineering Science Data Unit Item, Fletcher, Johnson, Kalker, Logston, Matsumoto, Monk-Steel, Polach, S. Lewis, Zhang   +13 more
core   +1 more source

Temperature dependence of the energy dissipation in dynamic force microscopy

, 2008
The dissipation of energy in dynamic force microscopy is usually described in terms of an adhesion hysteresis mechanism. This mechanism should become less efficient with increasing temperature.
, Fendrich M, Gauthier M, Hoffmann R, Kunstmann T, Marika Schleberger, Markus Fendrich, Mativetsky J M, Morita S, Nony L, Rolf Möller, Schirmeisen A, Tino Roll, Tobias Kunstmann, Trevethan T, Trevethan T   +15 more
core   +1 more source

The Operating Procedure of the Device Enhancing the Wheel-Rail Adhesion

Communications
The results of the analysis of sand application efficiency for improving wheel-rail adhesion are presented. An algorithm for the sandbox operation is substantiated, based on supplying sand under the wheels when their slip reaches a critical level ...
Yuriy Y. Osenin, Nataliia Chernetska-Biletska, Sergii Kliuiev   +2 more
doaj   +1 more source