Efficient Wheel-Rail Contact Model for the On-Line Estimation of Contact Forces

The proposed work focuses on developing a real-time architecture for the on-line estimation of the wheel-rail contact forces in railway vehicles. An innovative real-time model of the railway vehicle was developed: it is characterised by both a 3D multibody model to describe the train dynamics and a wheel-rail contact model, which computes the wheel-rail contact points, the contact forces, and torques. This model, developed by the authors, will be implemented on the on-board subsystems of the vehicle. An innovative technique to build up a hybrid Simulink-SimMechanics model has been introduced: it has been possible to achieve the best compromise between accuracy and efficiency. The proposed multitasking model was compiled and uploaded on an electronic multicore platform produced by Speedgoat (the Performed Real-Time target machine). The performances and reliability of the multitasking model was validated and tested: it has been validated through the experimental data obtained on a scaled prototype to reduce the development time and costs. The comparison shows the good performances and reliability of the proposed model. In the later research phases, the architecture will be implemented on the scaled vehicle and subsequently on a real train. This work was carried out in collaboration with the University of Seville (Spain). Moreover, the model was built and validated through the technical and experimental data provided by University of Seville, where the prototype of the vehicle was developed and tested on a scaled track.

• Record URL:
  • https://doi.org/10.1061/9780784481257.026
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780784481257
• Supplemental Notes:
  • © 2018 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Escalona, José
  • Galardi, Emanuele
  • Meli, Enrico
  • Rindi, Andrea
  • Romani, Benedetta
• Conference:
  • First International Conference on Rail Transportation 2017
  • Location: Chengdu Sichuan Provence, China
  • Date: 2017-7-10 to 2017-7-12
• Publication Date: 2018

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 250-264
• Monograph Title: ICRT 2017: Railway Development, Operations, and Maintenance

Subject/Index Terms

• TRT Terms: Mathematical models; Rolling contact
• Identifier Terms: Simulink (Computer program)
• Subject Areas: Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 01869749
• Record Type: Publication
• ISBN: 9780784481257
• Files: TRIS, ASCE
• Created Date: Jan 11 2023 5:03PM