A new lever-type variable friction damper for freight bogies used in heavy haul railway

To overcome defects caused by the complex structure and unstable damping performance of the wedge-type damper, a new lever-type friction damper has been developed for use in freight bogies; the design allows the advantages of traditional three-piece bogies to be retained. A detailed description of the structure and mechanism of the lever-type damper is provided, followed by a stress analysis using the finite element method. Dynamic performance characteristics of the lever-type damper and the wedge-type damper are compared in terms of the nonlinear critical speed, riding index, and curve negotiation. The results indicate that the maximum stress of the lever remains below its yield limit. The lever-type car has higher running performance reliability, and achieves similar nonlinear critical speed, riding index, and curve negotiation when compared with the wedge-type car.

• Record URL:
  • https://doi.org/10.1007/s40534-016-0116-4
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/2095087X
• Supplemental Notes:
  • © 2016 Ximing Xu et al.
• Authors:
  • Xu, Ximing
  • Fu, Maohai
  • Xu, Zhaoxia
  • Chen, Zhongyi
• Publication Date: 2016-9

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 159-165
• Serial:
  • Journal of Modern Transportation
  • Volume: 24
  • Issue Number: 3
  • Publisher: Springer Verlag
  • ISSN: 2095-087X
  • Serial URL: http://jmt.swjtu.edu.cn/EN/volumn/home.shtml
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Damping (Physics); Freight trains; Heavy haul; Railcar trucks
• Subject Areas: Freight Transportation; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 01610935
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 21 2016 2:41PM