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the performance of electromagnetic track brakes at low speeds

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  • Mark Farnell
    Let s consider a electromagnetic track brake that works by eddy current as well as a skid brake (by the electromagnetic attraction force between the brake and
    Message 1 of 1 , May 7, 2003
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      Let's consider a electromagnetic track brake that works by eddy
      current as well as a skid brake (by the electromagnetic attraction
      force between the brake and the track) and it is installed in every
      bogie in a train.

      Obviously, the EM brakes reduce the braking distance considerably at
      high speed because at high speed, the adhesion factor of the wheels
      decrease and therefore the braking force exerted by the wheels
      decrease. However, the EM brakes work independently from the wheel
      adhesion and give extra braking force.

      However at low speed, how much braking distance can EM brakes
      decrease? Is it a good idea to make it compulsary for all normal
      speed rolling stocks, or at least the streetcars, to equip all bogies
      with EM brakes?

      Mark
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