Results 51 to 60 of about 7,548 (270)

Effects of rail materials and axle loads on the wear behavior of wheel/rail steels

open access: yesAdvances in Mechanical Engineering, 2016
Four kinds of rail steels were tested to investigate the wear behaviors of wheel–rail materials under three kinds of axle loads. Results indicate that the increase in axle load not only significantly enlarges the wear loss but also enlarges the depth and
Jihua Liu   +3 more
doaj   +1 more source

Temperature‐dependent shear behavior and constitutive model of the rock–concrete interface

open access: yesDeep Underground Science and Engineering, EarlyView.
Shear tests were conducted to investigate the temperature‐dependent shear behavior of the rock–concrete interface, highlighting the interaction between the surrounding rock and the lining during tunnel fires. Under experimental conditions, concrete exhibited greater temperature sensitivity than rock, with the shear fracture surface transitioning from ...
Hongbin Chen   +6 more
wiley   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh   +12 more
wiley   +1 more source

Concept, Tests, and Optimum Design of Novel Negative Stiffness Friction Dampers for Seismic Protection of Long‐Span Bridges

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Viscous dampers (VDs) are widely used to mitigate the excessive responses of long‐span bridges. However, VDs face some intricate challenges in engineering practices, including high damping coefficient requirement, potential base shear amplification and tremendous damping force under high velocity. To address these issues, this study develops a
Ruisheng Ma   +5 more
wiley   +1 more source

Finalisation of the European Approach to Assess the Fire Performance of Facades—Brief Information on the Outcome of the Project

open access: yesFire and Materials, EarlyView.
ABSTRACT This research was conducted within the framework of project SI2.825082, funded by the European Commission—DG GROW. The project's objective was to finalise a European approach for assessing the fire performance of façades under medium and large fire exposure conditions.
Péter Tóth   +7 more
wiley   +1 more source

Experimental and numerical modelling of wheel rail contact and wear [PDF]

open access: yes, 2011
In the field of simulation of railroad vehicles, there are many numerical models to estimate the interaction forces between the wheel and rail. The main advantage of these models is that they can be used together with multi-body dynamics software to ...
A. Roda   +9 more
core   +1 more source

Application of Stray Magnetic Field for Monitoring the Wear Degree in Steel Components of the Lift Guide Rail System

open access: yesMetals, 2020
This paper presents the results of forced wear simulation of the friction lift guide rails. The forced wear in the case discussed is an effect of plastic strain of the guide rail surface due to emergency braking of the lift.
Poul Lonkwic   +2 more
doaj   +1 more source

Influence of Axle Load on the Wear of Railway Wheel Material

open access: yesModelling and Simulation in Engineering, 2023
This study investigated the influence of axle load on the wear rate of railway wheel material. Excessive wear of wheel/rail materials and reduced service life of the wheel/rail system might be caused by the increase in axle load and traffic volume.
Hewan Getachew Yenealem   +2 more
doaj   +1 more source

The Relation Between Ergonomics and Environmental Sustainability: A Bibliometric Analysis and Scoping Review

open access: yesSustainable Development, EarlyView.
ABSTRACT This study investigates the relationship between ergonomics and environmental sustainability through a combined bibliometric analysis and scoping review. A search across four major databases identified 1081 articles, of which 82 were included in the final analysis.
Matteo Gremo   +4 more
wiley   +1 more source

Limits for acceptable use of worn rails on UK standard gauge heritage railways [PDF]

open access: yes, 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  

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