Results 11 to 20 of about 70,183 (217)

A new method for landslide safety assessments based on natural vibration frequency

open access: yes工程科学学报, 2015
Using model experiment, in the condition that the sliding force unchanged, the internal cohesive force and friction force of the slope were analyzed by the natural vibration frequency. The stabilization of landslides was decided by comparing the friction
DU Yan   +4 more
doaj   +1 more source

Atomic simulations of nanoscale friction behavior in polycrystalline alloy 690

open access: yesMaterials Research Express, 2022
Fretting wear is one of the most important failure forms of alloy 690 heat exchanger tubes in nuclear power plants. The key to understanding the fretting wear of alloys lies in the friction process, especially at the atomic scale.
Ai-Long Zhou   +4 more
doaj   +1 more source

Friction Prediction and Validation of a Variable Stiffness Lower Limb Exosuit Based on Finite Element Analysis

open access: yesActuators, 2021
The variable stiffness exosuit has great potential for human augmentation and medical applications. However, the model of the variable stiffness mechanism in exosuits is far from satisfactory for the accurate prediction and control of friction force ...
Zhuo Ma   +3 more
doaj   +1 more source

Student's Conception about Friction Force Direction in Physics Education Sebelas Maret University

open access: yesJournal of Physics: Theories and Applications, 2017
The student's conception of friction force direction on objects is different. Student’s conceptions are important to improve the next learning process. The aim to the research was to know student’s conception about friction force direction. This research
Puspita Septim Wulandari   +2 more
doaj   +1 more source

Closed-Form Representations of Friction

open access: yesIEEE Access, 2021
The current developed friction models are basically based on the assumption of the normal forces exerted between the contact surfaces known in advance, less work has been done for closed-form (i.e., analytic) modeling in complex mechanical systems where ...
Jin Huang   +4 more
doaj   +1 more source

CORROSION AND SURFACE PROTECTION IN MACHINE MATERIALS FRICTION HAVE DIFFERENT SURFACE PAIRS EXPERIMENTAL INVESTIGATION OF FACTORS [PDF]

open access: yesFiabilitate şi Durabilitate, 2017
Friction force, normal force, linear change. The normal force varies with the loads on the friction object. In order to determine the friction force and the friction coefficient, the friction object and the friction speed are used.
Senai YALCINKAYA
doaj  

Vibration isolation system with linear friction damper consisting of tilt lever and cylindrical block

open access: yesNihon Kikai Gakkai ronbunshu, 2014
For the passive vibration isolation system, a friction damper is advantageous at cost, a maintenance, etc. However, the conventional damper of constant friction force has performance limitations; the isolation characteristic declines when the friction ...
Hideya YAMAGUCHI   +2 more
doaj   +1 more source

Temperature effects on the nano-friction across exposed atomic step edges

open access: yesAIP Advances, 2020
Despite the practical and fundamental importance of friction, there are many issues that are still needed to be explored and revealed; one of them is how friction changes across an atomic surface step edge at different temperatures.
Wen Wang, Ashu Wang, Lingyan Zeng
doaj   +1 more source

Probing of Nanoscale Friction and Mechanical Characteristics of Cotton Fiber’s Surface

open access: yesFibers, 2019
The surface topography and nanomechanical attributes of two samples of cotton fibers, namely, A and B, were characterized with various operation modes of an Atomic Force Microscope (AFM).
Farzad Hosseinali   +1 more
doaj   +1 more source

Friction of two-dimensional colloidal particles with magnetic dipole and Lennard–Jones interactions: A numerical study

open access: yesFriction, 2019
We use Langevin simulations to study the sliding friction of two-dimensional colloidal particles on a substrate with randomly distributed point-like pinning centers.
Zhongying Zhang   +3 more
doaj   +1 more source

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