... magnetic suspension model was developed by employing a proportional derivative ( PD ) controller. A TR06 maglev train running on a simply supported box-section bridge was introduced as the example, and its dynamic behaviour was compared with those under non-seismic conditions. Results demonstrate...

...Zhao Zemin; Wang Lihua; Jiang Wei; Zhang Hao The influence of dynamic stabilisers on the behaviour, settlement and density of ballast beds was investigated. The parameters for the ballast bed contact were obtained using the quadratic regression orthogonal rotational combination test...

...Qiang Li; Wentao Wang; Dongxu Liu To obtain a large number of dynamic mechanical responses of asphalt pavement structures under falling weight dynamic (FWD) loading in order to construct a deep learning training set, a method for transforming the dynamic–static mechanical responses of pavements...

... running performance. Based on wheel–rail system dynamics, a vehicle–points dynamic model with various milling methods was established, from which a selection and evaluation method for milling was proposed. The service performance of four milling types was compared and combined with point blade robustness...

... layer of recovered flying objects, 0.4 m of graded crushed rock (GCR), 0.2 m of roller-compacted concrete and a fibre-reinforced plastic (FRP) course. Crater 2 comprised a 2.4 m thick layer of flying objects, 0.6 m of GCR and a FRP course. Static and dynamic loads were applied using two aeroplanes...

... 2020 29 12 2020 Emerald Publishing Limited: All rights reserved 2021 dynamics mathematical modelling transport planning 2 Z 2 = ∑ s ⁡ P s × ∑ i ∑ j ∑ t d i j s t − x i j s t For the bike station siting...

... was investigated. The ballasted track and its components – including railpads, ballast and subgrade – were modelled as a series of mass–spring–damper systems, while the sleepers and culvert were simulated using Euler–Bernoulli beam elements. The dynamic behaviour of the track and its components was investigated...

...Fei Han, DEng; Hu Wang, PhD; Dan-hui Dan, PhD A three-dimensional finite-element vehicle–bridge–bridge deck pavement (BDP) coupling vibration model was built to investigate the coupled effect of bridge surface roughness and vehicle velocity on the dynamic response of BDPs under random vehicle loads...

..., losing or recovering contact between the sleeper and the ballast layer – have been omitted. These limitations have been addressed in this research. The effects of unsupported sleepers on the dynamic behaviour of railway track have been investigated, using an improved three-dimensional numerical model...

...Adam Beagles, BSc, MSc, PhD; David Fletcher, BEng, PhD; Matthew Peffers, MEng, AMIMechE; Patric Mak, BEng, PhD, CEng, MIMechE; Caroline Lowe, BSc, MSc, PhD, CEng This paper presents details of a new model of railway overhead electric power line dynamics for prediction of contact wire–pantograph...

... contact forces using the Hertz method (Kalker, 1982). Note that the acceptable accuracy of the Fastsim algorithm has been illustrated by Vollebregt et al. (2012). 06 08 2015 20 01 2016 ICE Publishing: All rights reserved 2016 dynamics rail track design safety...

...Khanh Nguyen Gia, PhD, CEng; José María Goicolea Ruigómez, PhD, BEng, CEng; Felipe Gabaldón Castillo, PhD, BEng, CEng This paper presents an investigation, using a numerical approach, of the dynamic response of the vehicle–track system as a function of the mechanical properties of high-speed rail...

...Javier Oliva, MSc; José M. Goicolea, MSc PhD; Miguel Á. Astiz, MSc PhD; Pablo Antolín, MSc Simplified vehicle models are usually employed when studying the dynamic effects of road traffic: quarter-car, one-dimensional vertical and two-dimensional longitudinal models are the most common. Furthermore...

... states method for designing track components, which in turn allows a more rational means of design rather than the current allowable limit concept. 10 08 2006 07 09 2007 © 2008 Thomas Telford Ltd 2008 design methods & aids dynamics rail track design NOTATION...

... 26 01 2001 © 2002 Thomas Telford Ltd 2002 dynamics mathematical modeling rail track design To quantify the noise reduction that can be achieved it is necessary to define a reference situation. Here, the starting point has been taken as a typical ballasted track with UIC 60...

... information, to predict the peak particle velocity at distances of up to 100 m from the source. The predictor was derived largely from the controlled trial data and has been validated by fitting to the data from construction sites. © 2002 Thomas Telford Ltd 2002 dynamics environment geotechnical...

... investigation. This work These forces areaffected by dynamic loading will be correlated with the mostcommon cause influences, the frequencyof wheel load applica- of failure in tramway practice. Particular atten- tion, lateralwheel loads on rail tangent and tion is being paid to bond maintenancein this curved...

... Rails Productivity Integrity Track Clearance Bridges Bashing Rivers Scour Grading Sleepers Relaying Stone Blowing Blowers Switches Crossings Dynamics Stabilisers Possession Construction Developments in civil engineering management and practice on Proc. Ins& Ciu. Engrs Tramp...