Results 21 to 30 of about 28,990 (256)

Feel the Static and Kinetic Friction [PDF]

open access: yes, 2012
Multimodal simulations augment the presentation of abstract concepts facilitating theoretical models understanding and learning. Most simulations only engage two of our five senses: sight and hearing. If we employ additional sensory communication channels in simulations, we may gain a deeper understanding of illustrated concepts by increasing the ...
Felix G. Hamza-Lup, William H. Baird
openaire   +3 more sources

Statistical approach on the inter-yarn friction behavior of the dual-phase STF/ρ-Aramid impregnated fabrics via factorial design and 3D-RSM

open access: yesHeliyon, 2023
Shear thickening fluids (STFs) refer to non-Newtonian fluids of the dilatant variety, wherein their viscosity experiences a significant surge with an escalation in the shear rate. In this investigative work, the friction behavior between yarns (pull-out)
Thiago F. Santos   +4 more
doaj   +1 more source

How static is static friction? [PDF]

open access: yesProceedings of the National Academy of Sciences, 2008
Physics 101 wisdom suggests that we need to overcome the static friction force, Fs, to initiate the lateral motion of one solid body over another one and that a force greater than the kinetic friction, Fk, is required to maintain the gliding nature of the contact. To drag a solid through a fluid, no such threshold forces exist.
openaire   +2 more sources

Transition from Static to Dynamic Friction in an Array of Frictional Disks [PDF]

open access: yesPhysical Review Letters, 2020
The nature of an instability that controls the transition from static to dynamical friction is studied in the the context of an array of frictional disks that are pressed from above on a substrate. In this case the forces are all explicit and Newtonian dynamics can be employed without any phenomenological assumptions.
Charan, Harish   +3 more
openaire   +4 more sources

Development of the high precision measurement device of static friction characteristics between surfaces at the fixed coupling section

open access: yesNihon Kikai Gakkai ronbunshu, 2019
Mechanical systems have many joints within. It is well known that the parameters such as contact stiffness, static friction coefficient, kinetic friction coefficient and attenuation coefficient affect static, kinetic, thermal and motion characteristic of
Fumihiko INAGAKI   +7 more
doaj   +1 more source

EFFECT OF ELECTRIC STATIC CHARGE ON FRICTION COEFFICIENT DISPLAYED BY SLIDING OF RUBBER SOLE AGAINST EPOXY FLOOR REINFORCED BY COPPER WIRES [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2015
Safe walking on the floor is evaluated by the static friction coefficient. Walking and creeping can generate electric static charge of intensity depends on the material of floor.
W. Y. Ali   +3 more
doaj   +1 more source

Measurement Method of Static Friction by a Piezoelectric Impact Drive Mechanism

open access: yesTribology Online, 2008
The coefficient of static friction is one of the basic factors of actuator performance; it influences the operational characteristics of actuators. In this present study we focus on the dependence of the coefficient of static friction on the time of ...
Atsushi Okuno   +3 more
doaj   +1 more source

Calibration and analysis of discrete element simulation parameters of Chinese cabbage seeds.

open access: yesPLoS ONE, 2022
ObjectiveTo improve the accuracy of parameters used in discrete element simulation test of Chinese cabbage seeds harvesting process.MethodsFirstly, the key physical parameters of Chinese cabbage seeds were measured. According to the results, the discrete
Shengsheng Wang   +4 more
doaj   +1 more source

Some Improvements in Elastoplastic Friction Compensator

open access: yesSICE Journal of Control, Measurement, and System Integration, 2017
For robotic joints with compliant transmissions, Mahvash and Okamura have proposed a friction compensator based on an elastoplastic friction model. One drawback of the compensator is that the compensator continues producing non-zero output force in the ...
Masayoshi Iwatani, Ryo Kikuuwe
doaj   +1 more source

Static and dynamic friction of hierarchical surfaces [PDF]

open access: yesPhysical Review E, 2016
11 pages, 13 ...
G. Costagliola, F: Bosia, Pugno, Nicola
openaire   +5 more sources

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