this article is concerned with the static analysis of structural cables used in railway overheads. structural analysis computer program named ansys is used for analysis. two effects are considered in the analysis. first one is the bending behavior effect of cables. beam188 in addition to link10 and link180 is used to see the difference in case of additional bending effect. besides, link10 and l...

Abstract A model is proposed herein to investigate the incipient sliding of contacts in presence both friction and adhesion, where interfacial response modeled based on traction-separation laws. Maugis-like parameter defined characterize tangential direction. Subsequently, used contact between a smooth cylinder flat body, adhesion-friction interactions are strong. range behaviors observed when ...

We study numerically the propagation of an acoustic pulse through a loaded granular material under the hypothesis that the conventional modeling of solid friction used in soft sphere discrete element modeling remains valid at acoustic time scales. As a pulse crosses the material, it temporarily suppresses sliding contacts, making it difficult to prepare states that correspond to experimental co...

It is stated that the operation of sliding contact unit accompanied by vibrations brushes occur as a result internal and external mechanical influences. The resulting violations (SC) instability contacting lead to deterioration in quality current transmission, increased sparking, accelerated wear SC. article devoted derivation verification universal formulas for calculating relative factor (RIF...

The endoplasmic reticulum (ER) network is extremely dynamic in animal cells, yet little is known about the mechanism and function of its movements. The most common ER dynamic, termed ER sliding, involves ER tubule extension along stable microtubules (MTs). In this study, we show that ER sliding occurs on nocodazole-resistant MTs that are posttranslationally modified by acetylation. We demonstra...