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Investigation on train derailment using a new criterion

Durali, M ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1115/DETC2009-86001
  3. Publisher: 2010
  4. Abstract:
  5. A new criterion for prediction of train derailment is presented in this paper. A 2 DOF wheel-set model is used to identify the main dynamic parameters that affect wheel-set derailment. Using these parameters and conventional definition of derailment coefficient, a new criterion for prediction of wheelset derailment is introduced. The proposed criterion, in addition to providing the required precision in prediction of wheelset derailment, it requires measurements which are easy to perform. To evaluate the capability of the new criterion in prediction of derailment, a full wagon model with 48 DOF was used. The wagon model is a 3-D, non-linear model of a train passenger car. The model includes non-linear elements for primary and secondary suspension systems. Friction and slack between elements, the center pivot with kinematics constraints, forces between pads, and bolster are also included in this model. The motion of the wagon on curved tracks is simulated for different travel speeds. Derailment coefficient and a new derailment criterion are used to investigate possibility of wheelset derailment in each case. The study shows that the new criterion can very well predict wheelset derailment and can duplicate the predictions by conventional derailment coefficient (Y/Q)
  6. Keywords:
  7. A-train ; Center pivot ; Curved track ; Derailment coefficient ; Derailment criteria ; Dynamic parameters ; Non-linear model ; Nonlinear elements ; Required precision ; Secondary suspension ; Train derailment ; Travel speed ; Wheelsets ; Accidents ; Automobiles ; Forecasting ; Suspensions (components) ; Three dimensional ; Wheels ; Derailments
  8. Source: Proceedings of the ASME International Design Engineering Technical Conferences and Computers and Information in Engineering Conference 2009, DETC2009, 30 August 2009 through 2 September 2009 ; Volume 4, Issue PART C , September , 2010 , Pages 1837-1842 ; 9780791849019 (ISBN)
  9. URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1649864