Heavy rail / Urban light rail

Bogies and running gears tests

For type approval purposes, Eurailtest performs tests to check the dimensions and overall design of bogies and running gears (axles, bearings, axle boxes, wheels). Failure analysis can be conducted.

Bogies

Checking the dimensions and overall design of all types of bogie frame for type approval purposes.

Tests objectives :

  • Perform static tests to check the dimensions of a bogie frame under
    – Regular mechanical loads (vertical, lateral, twist)
    – Specific mechanical loads (derailment, brakes, anti-roll bar, etc.)
    – Preparatory analysis for fatigue tests (GOODMAN and HAIGH diagrams)
  • Conduct fatigue tests in order to verify the overall design and manufacture of a bogie frame
    – Regular tests (vertical, lateral and twist with roll and bounce)
    – Specific tests: traction, braking, inertia, etc.

Tests facilities :

  • 1 test rig – for static and fatigue tests – totally modular
  • 30 dynamic cylinders (40 to 400 kN)
  • Non-destructive testing for crack detection
  • Strain gauges
  • Dynamic data acquisition system

Accreditations :

ISO/IEC 17025 awarded by COFRAC

Testing norms :

NF EN 13749 – Wheelsets and bogies – Method of specifying the structural requirements of bogie frames

UIC 615-4 – Bogies and running gear – Bogie frame structure strength tests

UIC 515-4 – Trailer bogies – Running gear – Bogie frame structure strength tests

UIC 510-3 – Wagons – Strength testing of 2 and 3-axle bogies on test rig

Bogies

Axles

Checking and establishing axle dimensions and running gear failure analysis.

Tests objectives :

  • Design new axles
  • Conduct failure analysis on worn axles
  • Check the conformity of axle design
  • Perform fatigue tests on axles

Tests facilities :

  • Tensile, resilience and hardness testing machines
  • Dynamic test bench for rotational bending of axles
  • Roughness tester
  • Optical microscope
  • Scanning electron microscope
  • Non-destructive test instruments

Accreditations :

ISO/IEC 17025 awarded by COFRAC

Testing norms :

NF EN 13103 – Non powered axles

NF EN 13104 – Powered axles

NF EN 13260 – Wheelsets

NF EN 13261 – Axles

STM-R 102 – Wheelsets – Product requirements

STM-R 103 – Axles – Product requirements

Essieux

Bearings and axle boxes

Contributing to the type approval process of all types of bearings and axle boxes test rigs.

Tests objectives :

  • Identify the performance of an axle box roller bearing
  • Optimize potential useful life and life cycle
  • Monitor behaviour and damage patterns thanks to thermal, acoustic and vibration measurements
  • Conduct failure analysis. Analyse the lubricant

Tests facilities :

  • Four SEM machines for testing axle boxes: Adjustable axial force ± 50 kN + Radial force up to 150 kN + Acceleration up to ± 4 m/s2 + Rotational speed up to 3,000 rev/min
  • Non-destructive test instruments
    – Axle shafts in stock: O 100mm ; O 120mm ; O 130mm ; O 150mm
    – Other diameters made to order

Accreditations :

ISO/IEC 17025 awarded by COFRAC

Testing norms :

NF EN 12080 – Axle-boxes – Rolling bearings

NF EN 12082 – Axle-boxes – Performance testing

UIC 515-5 – Running gear – Tests for axle-boxes

STM-R104

Roulements et boites d'essieux

Wheels

Establishing wheel dimensions to optimize their performance and conduct failure analysis.

Tests objectives :

  • Determine the fatigue limits of wheels
  • Assess fatigue behaviour of nonaxisymmetric wheels (calculations and biaxial testing)
  • Study crack propagation
  • Conduct failure analysis

Tests facilities :

  • Fatigue test bench for wheel (vertical force up to 400 kN and lateral force up to 100 kN)
  • Dynamic measuring chains
  • Strain gauges
  • Non-destructive test instruments
  • Scanning electron microscope

Accreditations :

ISO/IEC 17025 awarded by COFRAC

Testing norms :

NF EN 13260+A1 – Wheelsets and bogies – Wheelsets – Product requirements

NF EN 13261+A1 – Wheelsets and bogies – Axles – Product requirements

NF EN 13979-1 – Wheelsets and bogies – Monobloc wheels

NF EN 13262 – Wheelsets and bogies – Wheels

ERRI B169/RP9

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Our references

ALSTOM
BOMBARDIER
BONATRANS
CAF
CSR
EDK-ORENCO
KINEX
MG VALDUNES
NTN-SNR
NSK
SKF
TIMKEN
SCHAEFFLER
SNCF