Results 11 to 20 of about 423,780 (329)

Concrete-to-concrete shear friction behavior under cyclic loading [PDF]

open access: yesE3S Web of Conferences, 2022
The main objective of this paper was to study the concrete-to-concrete shear friction behavior under cyclic loading and different test rates. Eight dynamic push-pull tests were performed on concrete specimens with as-cast surface roughness type applying ...
Taklas Mohamad   +3 more
doaj   +1 more source

Emergent friction in two-dimensional Frenkel-Kontorova models [PDF]

open access: yes, 2016
Simple models for friction are typically one-dimensional, but real interfaces are two-dimensional. We investigate the effects of the second dimension on static and dynamic friction by using the Frenkel-Kontorova (FK) model.
de Wijn, Astrid S.   +2 more
core   +8 more sources

A Two-Step Method for Dynamic Parameter Identification of Indy7 Collaborative Robot Manipulator

open access: yesSensors, 2022
Accurate dynamic model is critical for collaborative robots to achieve satisfactory performance in model-based control or other applications such as dynamic simulation and external torque estimation.
Meseret Tadese   +3 more
doaj   +1 more source

Study on the Influence of Micro-Features in the Surface Topography of the Slider Raceway on the Dynamic Friction Factor of the Guide Rail Pair

open access: yesLubricants, 2023
During the operation of the guide rail pair, the accuracy of the guide rail pair is decreased by friction and wear, and the overall performance of the machine tool is directly affected. The influence of surface micro-features of the slider raceway on the
Mingxia Kang, Dezheng Hua, Xiaoqiang Guo
doaj   +1 more source

Dynamical friction in superfluids [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2019
26 ...
Berezhiani, Lasha   +2 more
openaire   +3 more sources

Effects of hydraulic oil and lubricant additives on dynamic friction properties under various reciprocating sliding conditions

open access: yesFriction, 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
doaj   +1 more source

Effect of Friction on the Dynamical Analysis of Three-Link Planar Robot Arm by Using Lagrange Approach [PDF]

open access: yesEngineering and Technology Journal, 2017
The dynamic analysis of Three-Link planar robot arm and control system with (PID) are presented and investigated. The dynamic analysis is very important in the design and control of the robot.
R.M. Hussein
doaj   +1 more source

Dynamical friction in modified Newtonian dynamics [PDF]

open access: yesMonthly 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
openaire   +4 more sources

Dynamical friction in gravitational atoms [PDF]

open access: yesJournal 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
openaire   +3 more sources

Motion analysis of passive dynamic walking with a rigorously constraint model: A necessary condition for maintaining period-1 gait

open access: yesBiomimetic 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
doaj   +1 more source

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