... characteristics within double-layer non-linear fasteners is a prerequisite for understanding their damping mechanisms and optimising their efficiency. Based on preliminary investigations of the vibration transmission characteristics between fastener layers using hammer tests, a refined dynamic finite-element...

... 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...

... or lower bound of the value of Z_k 23 04 2020 29 12 2020 Emerald Publishing Limited: All rights reserved 2021 dynamics mathematical modelling transport planning Bike-sharing schemes (BSSs) have existed for almost 50 years and have significantly...

... 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...

... R z − N 1 cos ⁡ β 1 − F 1 sin ⁡ β 1 = 0 3 R y − F 1 cos ⁡ β 1 + N 1 sin ⁡ β 1 − F 2 cos ⁡ β 2 + N 2 sin ⁡ β 2 = 0 06 08 2015 20 01 2016 ICE Publishing: All rights reserved 2016 dynamics...

...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...

... _{s) to get the dynamic design force (P). The terms comprising the impact factor represent the condition of the track (δ), the speed of the train (η), the designer's perception of the quality of that condition into the future (t) and the loading of the train on the track (β). Equation (1}...

... dynamics environment geotechnical engineering © 2002 Thomas Telford Ltd 2002 19 09 2001 12 02 2002 The travel speed affects the amount of compaction achieved to the extent that, in order to comply with the Specification for Highway Works, a travel speed of between 1·5 and 2·5 km...

... that depends primarily on the rate of decay of the vibration amplitude as waves propagate along the rail. This decay rate is strongly related to the stiffness of the rail fastening, in particular the rail pad. Soft pads cause the rail to become dynamically uncoupled from the sleeper, which minimises noise from...

...L LESLEY; H AL NAGEIM; LR55 © Thomas Telford and ICE 1996 LIVERPOOL JOHN MOORES UNIVERSITY RAILWAYS RAILS SYSTEMS LOADS TESTING STATIC DYNAMICS LOW HEIGHT STRUCTURAL RELIABILITY TOP SUPPORTED LABORATORIES TESTS FIELD TRIALS DEFLECTION STRAIN MEASUREMENT AXLES...

... 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...