Dynamic Behaviour of Metros and Trams
Analyzing the behaviour of a vehicle following abnormal behaviour in revenue service.
Tests objectives
- Determine by means of a device installed onboard the train:
– Tri-axial acceleration in the vehicle, bogies and axles
– Displacement of primary and/or secondary suspensions as well as pressure on air suspensions
– Lateral force on rubber-tyred rolling stock by means of a wheel force transducer
– Wheel lift (“wheel tread-railhead” height) over a short distance (e.g. turnout)
– Forces and displacements for couplers, buffers and rods
– Yaw, roll and pitch - Establish an image of the Y/Q ratio through equipment installed on the track
Tests facilities
- Triaxial accelerometers
- Displacement sensors
- Pressure sensors
- Strain gauges
- Doppler radar
Testing norms
EN 14363 – Testing for the acceptance of running characteristics of railway vehicles – Testing of running behaviour and stationary tests
EN 15686 – Testing for the acceptance of running characteristics of railway vehicles with cant deficiency compensation system and/or vehicles intended to operate with higher cant deficiency than stated in EN 14363:2005, Annex G
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RATP
Lyon (Tramway)
Valenciennes (Tramway)
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Dynamics tests
Eurailtest offers online tests to characterize the dynamic behaviour of railway vehicles. Overspeed tests can also be performed.
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