Urban light rail

Dynamic behaviour of metros and trams

Analyzing the behaviour of a vehicle following abnormal behaviour in revenue service.

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

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Test
facilities

  • Triaxial accelerometers
  • Displacement sensors
  • Pressure sensors
  • Strain gauges
  • Doppler radar

Our
references

Satisfied customers

Lyon Tramway (France)
RATP
Valenciennes Tramway (France)

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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