Dynamic models of friction wedge dampers

John F. Gardner, Joseph Paul Cusumano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

29 Citations (Scopus)

Abstract

Friction wedges play a central role in the vertical dynamics of railroad freight cars. They also play a role in lateral dynamics and stability. While friction wedges are mechanically very simple, their inherent nonlinearities lead to complications in modeling and dynamics. In this paper we present two simplified models of the fundamental physics of friction wedge dampers in the geometry typical of a three-piece truck. We also review the friction wedge model used in NUCARS and compare the three.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE/ASME Joint Railroad Conference
EditorsJ. Hong, D. Stone
PublisherIEEE
Pages65-69
Number of pages5
StatePublished - 1997
EventProceedings of the 1997 IEEE/ASME Joint Railroad Conference - Boston, MA, USA
Duration: Mar 18 1997Mar 20 1997

Other

OtherProceedings of the 1997 IEEE/ASME Joint Railroad Conference
CityBoston, MA, USA
Period3/18/973/20/97

Fingerprint

Dynamic models
Friction
Freight cars
Railroads
Trucks
Physics
Geometry

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Ocean Engineering

Cite this

Gardner, J. F., & Cusumano, J. P. (1997). Dynamic models of friction wedge dampers. In J. Hong, & D. Stone (Eds.), Proceedings of the IEEE/ASME Joint Railroad Conference (pp. 65-69). IEEE.
Gardner, John F. ; Cusumano, Joseph Paul. / Dynamic models of friction wedge dampers. Proceedings of the IEEE/ASME Joint Railroad Conference. editor / J. Hong ; D. Stone. IEEE, 1997. pp. 65-69
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Gardner, JF & Cusumano, JP 1997, Dynamic models of friction wedge dampers. in J Hong & D Stone (eds), Proceedings of the IEEE/ASME Joint Railroad Conference. IEEE, pp. 65-69, Proceedings of the 1997 IEEE/ASME Joint Railroad Conference, Boston, MA, USA, 3/18/97.

Dynamic models of friction wedge dampers. / Gardner, John F.; Cusumano, Joseph Paul.

Proceedings of the IEEE/ASME Joint Railroad Conference. ed. / J. Hong; D. Stone. IEEE, 1997. p. 65-69.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AB - Friction wedges play a central role in the vertical dynamics of railroad freight cars. They also play a role in lateral dynamics and stability. While friction wedges are mechanically very simple, their inherent nonlinearities lead to complications in modeling and dynamics. In this paper we present two simplified models of the fundamental physics of friction wedge dampers in the geometry typical of a three-piece truck. We also review the friction wedge model used in NUCARS and compare the three.

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Gardner JF, Cusumano JP. Dynamic models of friction wedge dampers. In Hong J, Stone D, editors, Proceedings of the IEEE/ASME Joint Railroad Conference. IEEE. 1997. p. 65-69