A Co-Simulation Strategy in the Simulation of Vehicle-Track-Ground Subdomains

Modelling a whole vehicle-track-foundation-soil system is complex and usually the problem is split into several subdomains for predicting railway-induced ground vibrations. In this way, a modelling approach (multibody simulation, finite element analysis) dedicated to each subdomain can be adopted without any numerical constraint. A limitation however occurs regarding the interaction between each subsystem which is thus neglected. For some cases, the whole modelling does not allow an accurate simulation. A solution consists on co-simulation that can be applied to re-couple the decoupled model during the time integration process. The purpose of this paper is to analyze various techniques of co-simulation by considering theoretically a monolithic model, split at different location. A TCP/IP client/server binding is used for the data transfer during the numerical integration. An application case is then presented using two different software packages: EasyDyn, an in-house multibody simulation software, for the vehicle subsystem and ABAQUS, a commercial finite element software, for the soil subsystem.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 1 - 8
  • Monograph Title: ICRT 2021: Second International Conference on Rail Transportation

Subject/Index Terms

Filing Info

  • Accession Number: 01840788
  • Record Type: Publication
  • ISBN: 9780784483886
  • Files: TRIS, ASCE
  • Created Date: Mar 29 2022 9:32AM