Brake component testing

Contribute to the type approval process of brake components: brake shoes, brake pads and wheels.

Tests objectives

Assess braking performance and endurance for “disc-pad” and “wheelbrake shoe” combinations
Conduct tests for wheel thermomechanical resistance and failure
Estimate life cycle costs: Weighing of pads and shoes + Measuring disc and wheel profiles
Measurements:
– Friction and stress coefficients
– Noise during braking (initial noise and dBA level)
– Temperature
– Wheel deflection by means of optical sensors
– Surface roughness
Quantify pollutant emissions into the air

Tests facilities

3 full-scale test rigs: Up to 500 km/h (maximum simulation speed on a wheel of 920 mm in diameter) and up to 30 tonnes (maximum simulated axle load)
Infrared thermography
Non-destructive Testing instrumentation

Accreditations

ISO/IEC 17025 awarded by COFRAC

Testing norms

EN 13979-1 – Wheelsets and bogies – Monobloc wheels – Technical approval procedure – Part 1: Forged and rolled wheels

UIC 510-5 – Technical approval of monobloc wheels – Application document
for standard EN 13979-1

UIC 541 – Brakes – Regulations concerning manufacture of the different brake parts – Driver’s brake valve

UIC 541 – Brakes – Regulations concerning the manufacture of brake components – Self-adjusting loadproportional braking system and automatic “empty-loaded” control device

Application document for standard EN 13979-1 – Railway applications. Wheelsets and bogies. Monobloc wheels. Technical approval procedure. Part 1. Forged and rolled wheels

EN 16452 – Railway applications – Braking – Brake blocks

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