Abstract
When the emergency brake is applied on a long freight train, severe impulsive coupler forces can be developed under some conditions. Intending to find measures for the reduction of such forces, the authors have repeated computer simulations. As the force varies according to the time following brake application and also the location in the train, the method is intended to display the force of couplers through the time interval concerned. This paper proposes visual image processing on a personal computer for the purpose. The intensity of the coupler force is classified by seven colorimages on CRT. Observing the image and tracing the point of interest on the CRT by MOUSE, we can obtain the necessary deta : time, coupler number and force, at the same time. As an example, the authors applied this method to two trains of almost similar conditions and found the difference of phenomena by means of simulated images.
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