A review on design and testing methodologies of modern freight train draft gear system

  title={A review on design and testing methodologies of modern freight train draft gear system},
  author={Simon Albert Wagner and Colin Cole and Maksym Spiryagin},
  journal={Railway Engineering Science},
Rolling stock connection systems are key to running longer and heavier trains as they provide both the connections of vehicles and the damping, providing the longitudinal suspension of the train. This paper focuses on the evolution of both connection and stiffness damping systems. Focus is on freight rolling stock, but passenger draw gears are also examined. It was found that connection systems have evolved from the buff and chain system used in the pioneer railways of the 1800s to the modern… 
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