Now showing items 1-10 of 4126
Comparison of friction models applied to a control valve
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
Eight different models to represent the effect of friction in control valves are presented: four models based on physical principles and four empirical ones. The physical models, both static and dynamic, have the same ...
Friction Correction of Austenite Flow Stress Curves Determined under Axisymmetric Compression Conditions
The experimental flow stress curves of structural steels obtained from axisymmetric compression tests conducted under hot-working conditions very often include the frictional effects present at the tool/specimen interface. ...
Friction coefficient dependence on electrostatic tribocharging
(Nature Publishing GroupLondonInglaterra, 2013)
Tailored surface textures to increase friction - a review
Surface textures with micro-scale feature dimensions still hold great potential to enhance the frictional performance of tribological systems. Apart from the ability of surface texturing to reduce friction, surface textures ...
Dynamic Friction Model Study Applied to a Servomechanism at Low Velocities
The following work contains an experimental method for identifying dynamic friction in a DC servomotor, whose identification and subsequent compensation is highly important. Friction has characteristics that are difficult ...
Determination of the coefficient of friction between steel bristles of gutter brushes for road sweepingDeterminación del coeficiente de fricción entre cerdas de acero de cepillos laterales para barrer calles
(Pereira : Universidad Tecnológica de PereiraFacultad de Ciencias Básicas, 2011)
Tool wear evaluations in friction stir processing of commercial titanium Ti–6Al–4V
This research addresses the application of friction stir welding (FWS) of titanium alloy Ti–6Al–4V. Friction stir welding is a recent process, developed in the 1990s for aluminum joining; this joining process is being ...
"Bristle-State" Friction: Modeling Slip Initiation and Transient Frictional Evolution From High-Velocity Earthquake Rupture Experiments
(Frontiers Media, 2020)
Fracture mechanics theory and seismological observations suggest that slip-rate is constantly changing during earthquake rupture, including dramatic acceleration from static conditions to high velocity sliding followed by ...
Quantum friction in arbitrarily directed motion
(American Physical Society, 2017-05)
Quantum friction, the electromagnetic fluctuation-induced frictional force decelerating an atom which moves past a macroscopic dielectric body, has so far eluded experimental evidence despite more than three decades of ...