Running dynamics analysis of rail vehicles (MBS simulation)

Customer: various customers

Project tasks

• New vehicle developments:
  Feasibility studies, risk analysis (failure conditions) and support of concept studies based on computer simulations
• Vehicle approval:
  Simulations for the assessment of running characteristics, model validation, simulations for the extension of approvals, simulations related to track access charges
• Investigation of operational issues:
  Clarification of causes for derailments, assessment of the effects of changes, analysis of unexpected wear, wheel-rail interface studies
• Special operational conditions:
  Pushing/pulling of inoperable multiple units, propelling tests
• Wheel set torsional vibrations
• Special applications such as gauge changing bogies, maglev or (suspended) monorails

Our Approach

PROSE has many years of experience in the dynamic simulation of rail vehicles, acquired through the running dynamic analyses for various own bogie developments and many calculations for manufacturers and operators. PROSE has also supported various innovative developments and research projects. Due to this expertise, PROSE is the suitable partner for the investigation of challenging questions in the field of rail vehicle dynamics. Through analyses and simulations, PROSE helps customers to identify weak points at an early stage, to avoid costly test series and to decisively improve the quality of the products.

PROSE covers the entire range of simulation steps, from the definition of the simulation task, the system boundary conditions and the compilation of the required model parameters to efficient model building, execution of the simulations and evaluation of the results. Based on many years of experience, PROSE is able to reliably estimate parameters which are difficult to determine and to select the appropriate modelling depth for the respective problem. The commercial simulation software system SIMPACK as well as special applications developed in-house are available for the calculations. Depending on customer requirements, PROSE carries out analyses in parallel to the design process in the own development team or as part of the customer’s team. PROSE also contributes with interdisciplinary know-how to non-railway-specific solutions.

Customer benefit

Qualified simulations reduce the development risk or help to solve problems that have occurred. In addition to a qualified calculation, PROSE attaches great importance to the interpretation and presentation of the results to the customer, including in-depth explanations and the necessary formal documentation relevant to homologation if requested. PROSE can also provide coaching support for simulation processes and act as a  neutral consultant. Due to a flexible organisation, PROSE can respond to customer requests at very short notice.