An Investigation into Slipping Adhesion between Rails and Wheels

Abstract

Quantitative analysis of the phenomena of adhesion between the rails and wheels is essential to properly control the behaviour of rolling stock. Therefore, a number of investigations have been carried out in many countries. However, most of those investigations have been made in laboratory rooms, the rate of slipping has been mostly within the minute range of creep, and the data obtained in them have not necessarily been in good compatibility with those of the field tests. In view of such situations, the author designed and constructed a test truck based on an entirely new idea, and ran a passenger car equipped with this special truck on a test track in JNR Ohmiya Factory. Although the test distance was not long, the real state of the adhesion changing continuously along the direction of rails has been clearly reproduced.