A study on correlation of derailment coefficient of rolling stock and roll motion measured by motion tracker

초록

We know that running safety assessment of railway vehicles, there are several methods. So far in Korea, we are using the most common method is to attach strain gauges to the wheel. This method the wheel vertical loads and lateral forces is calculated by measuring the derailment coefficient. By attaching strain gauges to measure the derailment coefficient that should be a signal from the rotating wheel. Therefore, measuring wheel-set, including equipment for receiving signals from the rotor is necessary. In this case, attach the strain gauge, bridge circuit configuration, the signal tuning, etc. It takes a lot of time and money. In this paper, we use the 3D motion tracker to measure the angular velocity and acceleration, track shape and derailment coefficients of the vehicle revealed whether any kind of association. There is a certain relationship between the derailment coefficient and track shape that were identified by main line testing. Roll motion, especially the track shape that has the closest relationship revealed.