Railway dynamics


Bullet Analysis of the dynamic behavior of the railway system

The interaction between vehicles and infrastructure is a complex scenario. Vehicle performance must comply with applicable standards and regulations while maintaining the required stability, ride quality, derailment prevention, comfort, etc. Our expertise in railway dynamics is the cornerstone of our railway-based capabilities.

Bullet Ad-hoc solutions

  • Vehicle-infrastructure interaction analysis. We use multibody simulations (e.g. Simpack, Vampire, etc.), FE modelling and on-board instrumentation, we analyze different aspects of railway systems, such as:

  • Verification of vehicle running dynamics according to EN 14363.

  • Stability of new vehicles on a given infrastructure.

  • Impact of new vehicles and/or operations infrastructure damage and aging (e.g. corrugation, excessive wear, etc.).

  • Analysis of noise emissions and ride comfort.

  • Noise and vibration analyses to assess the impact of vehicle operations on adjacent installations.

  • Wheel-to-rail contact analysis.

  • Friction coefficient analysis for friction modifiers.

  • Track dynamic response measurements and safety analysis.

  • Asset degradation modelling.

  • Component analysis and characterization (modelling, design, characterization and LCC assessment), e.g. suspension components, rubber-metal elements, etc.

Bullet Knowledge and expertise

  • Multibody Simulations.

  • System modeling (analytical, numerical, multibody, finite element).

  • Vehicle and infrastructure instrumentation.

  • Running dynamics testing.

  • Vehicle–infrastructure interaction (wheelrail and pantographcatenary interfaces).

  • Test-bench design.

  • Noise and vibration analysis.

  • Component modeling and characterization.