Results 41 to 50 of about 85,553 (306)

Cohesive, frictional powders: contact models for tension [PDF]

open access: yes, 2008
The contacts between cohesive, frictional particles with sizes in the range 0.1–10 μm are the subject of this study. Discrete element model (DEM) simulations rely on realistic contact force models—however, too much details make both implementation and ...
Luding, Stefan
core   +3 more sources

METHOD OF THE DRIVE POWER DETERMINATION OF THE MECHANISMS OF THE BRIDGE CRANE MOVEMENT CONSIDERING THE ROLLING FRICTION

open access: yesNauka ta progres transportu, 2015
Purpose. The value of drive resistance to its movement is the main parameter at calculating the drive power of bridge crane. The value of the wheel rolling friction on the rails is one of the important parts of the resistance to movement. It is necessary
V. M. Bohomaz   +3 more
doaj   +1 more source

Tribological Characterization of Micro Ball Bearings with and without Solid-State Lubrication

open access: yesMicromachines, 2023
The tribological characteristics of a below 1 mm micro ball bearing comprising steel disc and cages coated with thin copper and silver films were investigated. Electroplating and laser cutting were used to manufacture used elements. Friction was measured
Mateusz Jakub Samsel   +4 more
doaj   +1 more source

Determining the rolling resistance coefficient of wheelchairs

open access: yes, 2019
People moving on wheelchairs overcome the forces of resistance such as: air resistance, resistance of the ascent, inertia force and rolling resistance force.
Ł. Warguła, B. Wieczorek, M. Kukla
semanticscholar   +1 more source

The mechanisms of pedestrian slip on flooring contaminated with solid particles [PDF]

open access: yes, 2009
Statistics by the UK Health and Safety Executive (HSE) suggest that slips, trips and falls account for up to one in three major workplace accidents. The vast majority of these accidents are the result of contaminant (fluid or solid) within the shoe-floor
Dwyer-Joyce, R.S.   +2 more
core   +1 more source

Comparison of Achieved Rolling Resistance Values of Two Selected Tires on a Solid Surface

open access: yesApplied Sciences, 2022
The article deals with measuring the rolling resistance of two tires Mitas TS04 6.00-16 6PR and Mitas TS05 10.0/75-15.3 10PR on a concrete surface. The measurement was performed in a soil test channel which had to be adjusted for the given purpose.
Milan Helexa   +4 more
doaj   +1 more source

PENGARUH PERMUKAAN ALUR KEMBANG (TREAD PATTERN) BAN TYPE RADIAL PLY TERHADAP ROLLING RESISTANCE

open access: yesRotor: Jurnal Ilmiah Teknik Mesin, 2017
Rolling Resistance is a resistance to the wheels that will and have been rolling due to the force of friction between the wheels with the road surface of the wheel.
Aditya Krisna Hutomo   +2 more
doaj   +1 more source

Validation of the finite element simulation to estimate the rolling resistance of a non-driving wheel with experimental tests [PDF]

open access: yesJournal of Agricultural Machinery, 2015
Introduction: Encountering soil from the viewpoint of management and product manufacturing has always been considered important, and an attempt is always made hat the tools and contrasting methods of soil be designed in such a way that itself prevents ...
N Dibagar   +3 more
doaj   +1 more source

Study on the Influence of Rock Shape on Rolling Distance

open access: yesApplied Sciences, 2023
To explore the influence of rock shape on rolling distance and effectively mitigate rockfall hazards, the following research was conducted. Factors influencing the rolling distance of rocks were determined through model experiments, and the mechanics of ...
Feng Liu   +3 more
doaj   +1 more source

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