Results 61 to 70 of about 31,742 (299)
Increasing track stability in the zone of joints due to the use of elastic under sleeper pads
Вестник Научно-исследовательского института железнодорожного транспорта, 2016 Questions to optimize track stiffness on concrete sleepers were constantly in the area of attention of domestic and foreign experts in the field of track facilities.
V. O. Pevzner +5 more
doaj +1 more source
Frontiers in Physiology, 2020 Track cyclists are required to perform short- and long-term efforts during sprint and endurance race events, respectively. The 200 m flying sprint races require maximal power output and anaerobic capacity, while the 4,000 m pursuit cyclists demand a high
Sebastian Klich +8 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca +9 more
wiley +1 more source
From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices
Advanced Engineering Materials, EarlyView.Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle +3 more
wiley +1 more source
Limits for acceptable use of worn rails on UK standard gauge heritage railways [PDF]
, 2013 In 2011, UK heritage railways carried 7.1 million passengers on over 530 miles of track, accounting for £92 million of direct revenue. Much of this operation uses steam locomotives with relatively high axle loads and reciprocating motion which can lead ...
Dennis, Gareth, Crapper, Martin
core
OPTIMISATION OF TRACK STIFFNESS
, 2021 The railway track does hard work in difficult conditions. Being under the influence of mobile loads and natural phenomena, ensuring the continuity and safety of train traffic, it should serve at any time of the year, day or night.
Muhammadiyev Ne’matjon Rahmatovich +1 more
core
Advanced Engineering Materials, EarlyView.This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim +3 more
wiley +1 more source
Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading
Advanced Engineering Materials, EarlyView.This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev +2 more
wiley +1 more source
Applied SciencesTo address the insufficient multi-layer optimization of fastener and cushion stiffness in ballastless tracks for mixed passenger and freight railways, a vehicle–track coupled dynamic model is developed, and the effects of individual and combined ...
Weibin Liu +7 more
doaj +1 more source
, 2016 The performance of the railway system in terms of dynamic loading is depending mainly on the track support conditions. Usually, the track stiffness is used as the main parameter to describe the support conditions and is defined as the ratio of the load ...
Grossoni, I. +5 more
core