Experimental investigation on the dynamic behaviour of a railway vehicle travelling through a turnout

2009 ◽  
Vol 16 (1/2) ◽  
pp. 189 ◽  
Author(s):  
R.S. Barbosa ◽  
G.F.M. Santos
Keyword(s):  
Experimental Investigation ◽  
Dynamic Behaviour ◽  
Railway Vehicle

Experimental investigation on the dynamic behaviour of aluminum foam sandwich plate under repeated impacts

2018 ◽  
Vol 200 ◽  
pp. 298-305 ◽  
Author(s):  
Kailing Guo ◽  
Ling Zhu ◽  
Yinggang Li ◽  
T.X. Yu ◽  
Ajit Shenoi ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Aluminum Foam ◽  
Dynamic Behaviour ◽  
Sandwich Plate ◽  
Repeated Impacts

Experimental Investigation on the Dynamic Response of an Internal Turret Moored FPSO System Under Sea Waves

2003 ◽  
Author(s):  
T. Rajesh Kannah ◽  
R. Natarajan
Keyword(s):  
Experimental Investigation ◽  
Dynamic Behaviour ◽  
Operating Conditions ◽  
Scale Model ◽  
Sea Waves ◽  
Regular Waves ◽  
Wave Flume ◽  
Load Cells ◽  
Mooring Forces ◽  
Rotary Type

An experimental investigation on the dynamic behaviour of a typical internal turret moored FPSO system with a turret located at midships position is reported. A 1:100 scale model of 140000t DWT turret moored FPSO system was tested under regular waves for three operating conditions i.e. 40%DWT, 70%DWT and 100%DWT in a 2m wide wave flume at a water depth of 1m for the wave frequencies from 0.55Hz to 1.25Hz in steps of 0.04Hz. The motions were measured by rotary type potentiometers and specially ring type load cells were used to measure the mooring forces. The model tests results are analysed and presented with discussions in this paper.

The effect of train composition on the running safety of low-flatcar wagons in braking and curving manoeuvres

2016 ◽  
Vol 231 (6) ◽  
pp. 666-677 ◽  
Author(s):  
Egidio Di Gialleonardo ◽  
Gabriele Cazzulani ◽  
Stefano Melzi ◽  
Francesco Braghin
Keyword(s):  
Numerical Simulations ◽  
Dynamic Behaviour ◽  
Good Alternative ◽  
Critical Conditions ◽  
Railway Vehicle ◽  
Freight Train ◽  
Running Safety ◽  
Experimental Campaign ◽  
Important Impact ◽  
Truck Transportation

Low-flatcar wagons represent a good alternative to freight truck transportation. In fact, the whole truck can be easily loaded on these wagons. However, due to the railway vehicle gauge, these vehicles present a particular design with an important impact on the dynamics of the trainset and on its derailment risk. The present work aims at analysing the dynamic behaviour of the trainset and the influence of the freight train composition on the derailment risk. Numerical simulations have been performed to identify the most critical conditions. Then, an experimental campaign has been carried out to evaluate the derailment risk associated to these conditions.

scholarly journals Research tools aplicable in designing of high-speed and high-power rail vehicles

2021 ◽  
Vol 31 ◽  
pp. 10-17
Author(s):  
Vojtěch Dybala
Keyword(s):  
High Power ◽  
High Speed ◽  
Mechanical Engineering ◽  
Dynamic Behaviour ◽  
Road Transport ◽  
Railway Vehicle ◽  
Railway Transport ◽  
Laboratory Equipment ◽  
Research Activities ◽  
Rail Vehicles

The importance of the railway transport of both goods and passengers continuously grows as it is in many points of view more ecological and economical solution in comparison with road transport. Just the importance has been supporting efforts to design more powerful and faster trains reaching traction powers more than 1.6 MW per a wheel-set or service top speed much more than 300 km/h till these days. To reach design which has enabled such a kind of performances it was necessary to research dynamic behaviour of railway vehicles. Both via laboratory measurements and simulations. The laboratory experiments have been carried out on a specially designed laboratory equipment called roller rigs. A laboratory equipped by roller rig for testing of the railway vehicle dynamic behaviour has been built at the Faculty of Mechanical Engineering at CTU in Prague, also within PhD studyprograms and SGS grants. Another powerful tool within research activities is a simulation. Kind of a such simulation will be presented by this contribution with the focus on the torsion dynamics of high-power fully-suspended drive of a railway vehicle, which has been developed also by PhD students under financial support of The Faculty of Mechanical Engineering and related grants.

scholarly journals Numerical Modelling and Validation of Railway Vehicle

2020 ◽  
Vol 8 (6) ◽  
pp. 846-850
Keyword(s):  
Experimental Data ◽  
Theoretical Model ◽  
Numerical Modelling ◽  
Dynamic Behaviour ◽  
The Body ◽  
Railway Vehicle ◽  
Validation Process

The objective of this study was to establish a theoretical model regarding the dynamic behaviour of the railway vehicle in the vertical plan while travelling on a track with irregularities. In this article the vehicle is modelled by seven bi-dimensional rigid elements respectively representing: the body, tow boogies and four wheels. The equations system was numerically integrated by the Newmark´s β and Wilson ɵ method. The model developped was subjected to a validation process based on the comparison between numerically derived acceleration spectra and experimental data.

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