Influence of high frequency vibrations on the wheel-rail creep curve at high speeds

An explicit finite element model is developed to simulate the quasi-steady and transient wheel-rail rolling contact over tangent and curved tracks at a speed up to 400 km/h, and derive the creep curves. For transient curves, short irregularities with a wavelength range of 10 ~ 1000 mm are applied on one rail, i.e., unilateral corrugation is simulated. The quasi-steady creep curve is first validated against those from traditional theories implied the steady rolling assumption. Then, the transient creep curves, being significantly different from the quasi-steady ones, are studied in terms of variations, and their traction, speed and wavelength dependence.

• Record URL:
  • http://www.railknowledgebank.com/Presto/pl/MTk4MTRjNDUtNWQ0My00OTBmLTllYWUtZWFjM2U2OTE0ZDY3LjEwMTEw
• Authors:
  • Yin S
  • Zhao X
  • Wen Z
  • Jin X
• Conference:
  • 12th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, 4-7 September 2022, Melbourne, Victoria, Australia
• Publication Date: 2022

Media Info

• Pagination: 9p.; PDF
• Monograph Title: 12th International conference on contact mechanics and wear of rail/wheel systems (CM2022): advancing the science and practice of the wheel/rail interface to improve railway operation efficiency

Subject/Index Terms

• TRT Terms: Creep; Finite element method; Highway curves; Mathematical models; Railroad rails; Rolling contact; Vibration
• ATRI Terms: Creep; Curve; Finite element method; Modelling; Railway track; Vibration

Filing Info

• Accession Number: 01879030
• Record Type: Publication
• Source Agency: ARRB Group Limited
• Files: ATRI
• Created Date: Apr 10 2023 4:54PM