Πλοήγηση ανά Θέμα "Rails"
Αποτελέσματα 1-14 από 14
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A combined numerical/experimental prediction method for urban railway vibration
(2017)Railway-induced ground vibrations can cause negative effects to people/structures located in urban areas. One of the main sources of these vibrations is from the large vehicle forces generated when train wheels impact local ... -
A comparative analysis of performances of econometric, fuzzy and time-series models for the forecast of transport demand
(2007)The paper attempts to evaluate how the fuzzy method can improve the range of forecast achieved by classic econometric and time-series models. Based on a survey of factors affecting rail passenger demand and using data of ... -
The effect of railway local irregularities on ground vibration
(2015)The environmental effects of ground-borne vibrations generated due to localised railway defects is a growing concern in urban areas. Frequency domain modelling approaches are well suited for predicting vibration levels on ... -
Fatigue and fracture behavior of pearlitic Grade 900A steel used in railway applications
(2016)In overloaded railway networks, rail surface defects developed under rolling contact fatigue (RCF) if left untreated, may propagate to the bulk of the rail and become critical for its structural integrity. To avoid critical ... -
High railway rolling noise reduction by combining existing track based solutions
(2015)The overall objective of the EU funded Quiet-Track project is to provide step changing track based noise mitigation systems and maintenance schemes for the railway rolling noise. This paper focuses on the combination of ... -
A hybrid numerical-experimental assessment of railway ground vibration in urban area
(2018)A common source of railway-induced ground vibrations is local defects such as rail joints, switches, and turnouts which cause large amplitude excitations at isolated locations along the track. Moreover, the distance between ... -
A hybrid two-step approach for evaluating the impact of local rail defect on building vibration
(2017)With the development of light rail transit in urban areas, the effect of railway vibrations on buildings and people inside buildings is a growing problem. In particular, urban transit commonly generates large vibration ... -
Modelling the singular rail and wheel surface defect for predicting railway ground vibration
(2015)When undertaking a railway vibration assessment, the presence of singular defects on the rail and wheel surfaces significantly affects the ground vibration level. The objective of this paper is to analyse the most common ... -
Railway ground vibrations induced by wheel and rail singular defects
(2015)Railway local irregularities are a growing source of ground-borne vibration and can cause negative environmental impacts, particularly in urban areas. Therefore, this paper analyses the effect of railway track singular ... -
Railway-induced ground vibrations in the presence of local track irregularities and wheel flats
(2015)Rapid growth in railway infrastructure has led to numerous environmental technical challenges. This includes ground-borne vibration, which is becoming an increasing problem, particularly in urban environments. A common ... -
Rolling contact fatigue of rails
(2013)Rolling contact fatigue (RCF) has been of increasing concern in the recent years regarding the safe operation of high-speed railway track with high traffic intensity. The present paper summarizes the results of an on-going ... -
Structural impact response for assessing railway vibration induced on buildings
(2017)Over the syears, the rapid growth in railway infrastructure has led to numerous environmental challenges. One such significant issue, particularly in urban areas, is ground-borne vibration. A common source of ground-borne ... -
Transient loads/ actions on railway track: The case of a deformed, bent joint or welding
(2014)The railway track is modeled as a continuous beam on elastic support. Train circulation is a random dynamic phenomenon and, according to the different frequencies of the loads it im-poses, there exists the corresponding ... -
Vibrations from rail traffic and mitigations measures for the reduction of railway noise
(2015)The present paper presents an analysis of the mechanism of propagation of vibrations from rail traffic and its effects to the surrounding land uses. First, the following issues are examined: levels of noise from rail traffic ...