판토그라프의 동적 접촉력 측정에 관한 연구

초록

A method for accurate measurement of the contact force in the current collection system of the high-speed railway is developed. In order to measure the contact force with minimal modifications to the pantograph, steain gauges are attached to the bottom of the contact strip. An algorithm for deriving the magnitute and stagger of the contact force from the bending strain measurements is devised. For the sample pantograph, the static contact forces are measured to witin ±5% error for the magnitude and ±2cm error for the stagger. For dynamic contact force measurement, it is found that the contact strip can the regarded as a rigid body for the contact frequency of less than 15Hz.