• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 29 Issue 2
Apr.  2016
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Article Contents
CHEN Guangxiong, CUI Xiaolu, WANG Ke. Generation Mechanism for Plolygonalization of Wheel Treads of High-Speed Trains[J]. Journal of Southwest Jiaotong University, 2016, 29(2): 244-250. doi: 10.3969/j.issn.0258-2724.2016.02.004
Citation: CHEN Guangxiong, CUI Xiaolu, WANG Ke. Generation Mechanism for Plolygonalization of Wheel Treads of High-Speed Trains[J]. Journal of Southwest Jiaotong University, 2016, 29(2): 244-250. doi: 10.3969/j.issn.0258-2724.2016.02.004

Generation Mechanism for Plolygonalization of Wheel Treads of High-Speed Trains

doi: 10.3969/j.issn.0258-2724.2016.02.004
  • Received Date: 20 Mar 2016
  • Publish Date: 25 Apr 2016
  • In order to understand the generation mechanism for plolygonalization of wheel treads of high-speed trains and to suppress the polygonal wear of wheel treads, a friction-induced self-excited vibration model for wheelset-track system consisting of a wheelset and two rails was set up based on the fact that a wheel probably slips on a rail because of the saturated wheel-rail creep force when a speed-governing brake is applied in rain or snow. With this model, a numerical simulation on the occurrence propensity of the friction-induced self-excited vibration of the wheelset-track system was made. The result shows that when wheels slip on rails in the braking process of trains, the friction-induced self-excited vibration of the wheelset-track system easily occurs. The vibration probably induces plolygonalization of wheel treads. Several factors affecting plolygonalization of wheel treads are analyzed. It is proposed that preventing the wheel from slipping on the rail is a key precaution to suppress plolygonalization of wheel treads. Increasing the damping of the rail fastener is helpful to suppress plolygonalization of wheel treads.

     

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