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Dynamic behavior of worn wheels in a track containing several sharp curves based on field data measurements and simulation

Salehi, S. M ; Sharif University of Technology | 2019

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  1. Type of Document: Article
  2. Publisher: Sharif University of Technology , 2019
  3. Abstract:
  4. A study of the wheel and rail wear phenomenon can provide a chance for the optimal use of wheel profile, which results in cost efficiency, dynamic stability, travel comfort, and safety to prevent the derailment, especially in curves. In this paper, the experimental data are recorded based on the field measurements for worn wheels of a passenger wagon in the "Southern line" of Iran's railway system and are combined with the dynamic simulations to study the effects of severe wheel flange wear on the dynamics of wagon. The results show that the amount of wheel wear (especially the wheel flange) directly impacts the dynamic behavior of the wagon in curves. In addition, based on the history of wear index and the peak derailment ratio, the appropriate range of the wheel flange thickness required to repair or replace the worn wheels is suggested to be 25 to 27 mm. © 2019 Sharif University of Technology. All rights reserved
  5. Keywords:
  6. Derailment ratio ; Dynamic simulation ; Field data measurement ; Sharp curves ; Wear index ; Wheel flange wear ; Computer simulation ; Derailments ; Flanges ; Passenger cars ; Railroad transportation ; Vehicles ; Cost efficiency ; Dynamic behaviors ; Field data measurements ; Field measurement ; Railway system ; Sharp curve ; Wheel flanges ; Wheel profile ; Wheels ; Breakthrough curve ; Efficiency measurement ; Field method ; Safety ; Simulation
  7. Source: Scientia Iranica ; Volume 26, Issue 5 B , 2019 , Pages 2839-2853 ; 10263098 (ISSN)
  8. URL: http://scientiairanica.sharif.edu/article_20601.html