The benefits of mechatronically-guided railway vehicles: a multi-body physics simulation study

Nabilah Farhat, Christopher P. Ward, Roger M. Goodall, Roger Dixon

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)
353 Downloads (Pure)


Mechatronically-guided railway vehicles are of paramount importance in addressing the increasing interest in reducing wheel-rail wear and improving guidance and steering. Conventional passively-guided rail vehicles are limited by the mechanical constraints of the suspension elements. Currently, a typical rail vehicle suspension needs to be sufficiently stiff to stabilize the wheelsets while being complaint enough to negotiate curved track profiles. The suspension is therefore a compromise for the contradictory requirements of curving and stability.

In mechatronic vehicles, actuators are used with the conventional suspension components to provide additional stiffness or damping forces needed to optimise a vehicle for a wide variety of scenarios, and not rely on a sub optimal combination of passive components.

This research demonstrates the benefits of active guidance and steering when compared to a conventional vehicle using simulation results from a multi-body simulation software Simpack. It also provides insights into the relative performance of the mechatronic schemes. The Simpack modeling allows for a complex model with high fidelity, which provides an additional level of proof of the control algorithms working on a real rail vehicle. Each vehicle is assessed in terms of guidance on straight track, steering on curved track, actuation requirements and wheel-rail wear. Significant benefits are demonstrated in one of the guided vehicles with independently-rotating wheelsets.
Original languageEnglish
Pages (from-to)115-126
Number of pages12
Early online date26 Mar 2018
Publication statusPublished - 1 May 2018


  • Railway
  • Control
  • Active steering
  • Vehicle dynamics
  • Active guidance
  • Mechatronic vehicles


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