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Rail squeal is a screeching train-track friction sound, commonly occurring on sharp curves.

Squeal is presumably caused by the lateral sticking and slipping of the wheels across top of the railroad track. This results in vibrations in the wheel that increase until a stable amplitude is reached.[1]

Lubricating the rails has limited success. Speed reduction also appears to reduce noise levels.[2]

The mechanism that causes the squealing also is the cause of wear and tear that is happening to both rails and wheels.

FactorsEdit

Factors include:[citation needed]

See alsoEdit

ReferencesEdit

  1. ^ Rudd, M.J. (1976). "Wheel/rail noise—Part II: Wheel squeal". Journal of Sound and Vibration. 46 (3): 381–394. doi:10.1016/0022-460X(76)90862-2.
  2. ^ Barnt Green Rail Noise - summary by Les Bailey