Results 21 to 30 of about 47,414 (269)

Characterization of Dynamic Friction Factor for FEM Modeling of High Speed Process

open access: yesEngineering Transactions, 2014
The present study aims to establish through a series of friction tests the trends of the dynamic factor according to sliding speed. A ballistic set-up using an air gun launch is used to measure the friction coefficient for the steel/carbide contact ...
Jean-Jacques ARNOUX   +2 more
doaj   +1 more source

APPROBATION OF TRIBOMETER WITH SEPARATED INPUT AND OUTPUT SIGNALS IN INVESTIGATION EXTERNAL FRICTION DYNAMICS STEEL AND BRASS MATERIALS [PDF]

open access: yesProceedings on Engineering Sciences, 2019
This investigation suggests a method used to determine the evolution of metallic wear and friction by sliding. The problem of external dynamics friction is investigated through the definition of the dynamic characteristics such as damping factor and ...
G. M. ISMAILOV   +2 more
doaj   +1 more source

Wear and friction of composites of an epoxy with boron containing wastes

open access: yesPolímeros, 2015
Polymer surface coatings provide superior adhesion to substrates, some flexibility and corrosion resistance. On the other hand, 400,000 ton of boron wastes are generated each year.
Tayfun Uygunoğlu   +2 more
doaj   +1 more source

A Second-Order Dynamic Friction Model Compared to Commercial Stick–Slip Models

open access: yesModelling, 2023
Friction has long been an important issue in multibody dynamics. Static friction models apply appropriate regularization techniques to convert the stick inequality and the non-smooth stick–slip transition of Coulomb’s approach into a continuous and ...
Georg Rill, Matthias Schuderer
doaj   +1 more source

Effect of collagen-induced residual stress on the frictional property of articular cartilage

open access: yesBiosurface and Biotribology, 2018
Previous findings, such as split-line of the articular cartilage surface and curving of sliced cartilage specimen, would suggest that residual stress is contained in articular cartilage.
Hiromichi Fujie   +2 more
doaj   +1 more source

Research on the Relationship between Dynamic Characteristics and Friction Torque Fluctuation of CMGB under the Condition of Time-Varying Moment

open access: yesLubricants, 2023
In this paper, a dynamic simulation analysis model was established for CMGB (control moment gyroscope bearing) under the conditions of time-varying moment.
Wenhu Zhang   +5 more
doaj   +1 more source

Gravitomagnetic dynamical friction [PDF]

open access: yesPhysical Review D, 2017
A supermassive black hole moving through a field of stars will gravitationally scatter the stars, inducing a backreaction force on the black hole known as dynamical friction. In Newtonian gravity, the axisymmetry of the system about the black hole's velocity $\mathbf{v}$ implies that the dynamical friction must be anti-parallel to $\mathbf{v}$. However,
Cashen, Benjamin   +2 more
openaire   +2 more sources

Friction dynamics of trocars

open access: yesSurgical Endoscopy, 2006
In minimally invasive surgery, force feedback information on tissue manipulation is altered by friction between the instrument and the sealing mechanism of the trocar. It is unknown how the different sealing mechanisms of currently available trocars influence the friction forces.
Van Den Dobbelsteen, J.J. (author)   +2 more
openaire   +4 more sources

Dynamical friction for compound bodies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1998
In the framework of the fluctuation-dissipation approach to dynamical friction, we derive an expression giving the orbital energy exchange experienced by a compound body as it moves interacting with a non homogeneous discrete background. The body is assumed to be composed of particles endowed with a velocity spectrum and with a non homogeneous spatial ...
Domínguez-Tenreiro, R.   +1 more
openaire   +3 more sources

Dynamic Analysis of the Helical Gear Transmission System in Electric Vehicles with a Large Helix Angle

open access: yesMachines, 2023
Sliding friction is an important excitation for the vibration and noise of a transmission system. However, in cases where the helix angle of the helical gear is large, the dynamic characteristics of the transmission system in an electric vehicle caused ...
Yancong Li   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy