Results 11 to 20 of about 47,414 (269)
Dynamical friction in superfluids [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 26 ...
Berezhiani, Lasha +2 more
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Friction, 2019 The friction characteristics of a shock absorber are very complex because the reciprocating motion is not always identical. In this study a device was developed and used to analyze the dynamic friction characteristics under various reciprocating sliding ...
Shinji Kato, Shinya Sasaki
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Dynamical friction in modified Newtonian dynamics [PDF]
Monthly Notices of the Royal Astronomical Society, 2008 Accepted for publication in MNRAS. 6 pages, 3 figures. Corrected typo in eq. (8), added panel to Fig. 1, added references and discussion.
NIPOTI, CARLO +3 more
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Dynamical friction in gravitational atoms [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 AbstractDue to superradiant instabilities, clouds of ultralight bosons can spontaneously grow around rotating black holes, creating so-called “gravitational atoms”. In this work, we study their dynamical effects on binary systems. We first focus on open orbits, showing that the presence of a cloud can increase the cross section for the dynamical ...
Tomaselli, G.M. +2 more
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Experimental Study on the Transition between Static and Kinetic Frictions of Steel/Shale Pairs
Shock and Vibration, 2021 The transition between static and kinetic frictions of steel/shale pairs has been studied. It was found that the coefficient of friction decreased exponentially from static to dynamic friction coefficient with increasing sliding displacement.
Qin Lian, Chunxu Yang, Jifei Cao
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Biomimetic Intelligence and Robotics, 2022 The friction force is an important environmental factor that influences dynamic walking. While most of the related works simply assume static friction or Coulomb friction, we use the LuGre friction, which accounts for both static and dynamic effects, to ...
Yanqiu Zheng +5 more
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DYNAMICAL FRICTION IN CUSPY GALAXIES [PDF]
The Astrophysical Journal, 2014 In this paper we treat the problem of the dynamical friction decay of a massive object moving in an elliptical galaxy with a cuspidal inner distribution of the mass density. We present results obtained by both self-consistent, direct summation, N-body simulations, as well as by a new semi-analytical treatment of dynamical friction valid in such cuspy ...
ARCA SEDDA, MANUEL +1 more
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Modeling the Friction Boundary Layer of an Entire Brake Pad with an Abstract Cellular Automaton
Lubricants, 2018 The principle energy exchange of a brake system occurs in the tribological boundary layer between the pad and the disc. The associated phenomena are primarily responsible for the dynamics of brake systems.
Georg-Peter Ostermeyer +1 more
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DYNAMICAL FRICTION IN CUSPIDAL GALAXIES [PDF]
The Thirteenth Marcel Grossmann Meeting, 2015 Dynamical friction is the process responsible for matter transport toward the inner regions of galaxies in form of massive objects, like intermediate mass black holes, globular clusters and small satellite galaxies. While very bright galaxies show an almost flat luminosity profile in the inner region, fainter ones have, usually, a peaked, cuspidal ...
M. Arca Sedda +1 more
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High friction coefficient of vertically aligned carbon-nanotubes: A molecular dynamics simulation
Carbon Trends, 2021 In this study, we perform non-equilibrium molecular dynamics simulations to study the friction coefficient between two carbon nanotubes grown vertically on two separate graphene layers, which are placed parallel to each other with one set in motion ...
O. Farzadian +3 more
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