Results 61 to 70 of about 1,218,714 (203)
Dynamic investigation on railway vehicle considering the dynamic effect from the axle box bearings
The nonlinear load of the axle box bearing and the spatially coupled relationship of vehicles have seldom been considered in the dynamic modeling of vehicle–track systems in recent years.
Tao Li +5 more
doaj +1 more source
Abstract Within the paper first the details of the studied steel railway bridge and the comprehensive measuring and monitoring program is presented, to get stress histories in individual control sections of relevant bridge members (main girder, bracings) over a measurement period of eight weeks.
Harald Unterweger, Christoph Derler
wiley +1 more source
Economic Effects of Lifting the Spring Load Restriction Policy in Minnesota [PDF]
Spring load restrictions (SLR) regulate the weight per axle carried by heavy trucks during the spring thaw period. This policy aims to reduce pavement damage caused by heavy vehicles and extend the useful life of roads, but it also imposes costs on the ...
Ning Li, Brian Smalkoski, David Levinson
core
Load-bearing of axle-box assemblies
This paper discusses the types of loads experienced by bearings in the boxes of railway cars. The authors give examples of using a ball bearing as an axial stop to reduce the load on the frame of railway cars. The paper reviews existing solutions, considers the components of a single row of radial bearings and a roller bearing without separators, and ...
Cheremiskina, Maria Sergeevna +1 more
openaire +1 more source
Abstract Bridge decks with longitudinal trapezoidal stiffeners are widely used in long‐span steel bridges because they offer an effective balance of strength, structural efficiency, and durability. Key design challenges are accurately predicting the internal forces that develop in these stiffened decks under concentrated wheel loads, and how stiffener ...
Svein‐Rune Kleppe, Arne Aalberg
wiley +1 more source
A Framework for Analyzing the Effects of Spring Load Restriction [PDF]
Spring Load Restrictions (SLR) impose load restrictions on heavy trucks during the spring thaw period. Although the policies have been implemented for many years, we are still unsure of their economic effects on truckers.
Xi Zou +4 more
core
Bridge roughness index as an indicator of bridge dynamic amplification [PDF]
The concept of a road roughness index for bridge dynamics is developed. The International Roughness Index (IRI) is shown to be very poorly correlated with bridge dynamic amplification as it takes no account of the location of individual road surface ...
O'Brien, Eugene J. +2 more
core +1 more source
B‐WIM System Development for a Railway Bridge based on simulated data
Abstract Bridge Weigh‐In‐Motion (B‐WIM) technology can estimate axle loads and traffic parameters directly from structural responses, making it a valuable tool for structural health monitoring (SHM). Although there are developing benchmarks for road bridges, its application to railway bridges is limited due to unique challenges.
László Barbély, Attila László Joó
wiley +1 more source
Charge Storage Mechanisms and Material Design of Ammonium Ion Batteries
Aqueous ammonium ion batteries (AAIBs) are promising sustainable energy storage devices, leveraging the low molar mass and rapid hydrogen bond‐facilitated diffusion of NH4+ ions. Research focuses on developing electrode materials (including metal materials and organic materials) and optimizing electrolytes to improve performance.
Yichen Ke +6 more
wiley +1 more source
Botswana-guideline-4-axle-load-surveys-2000The Government of Botswana has during the last 20 years spent scarce resources developing Road Infrastructure for the benefi t of her people.
Nkaro, Andrew
core

