전동차 차륜 답면의 마모 및 결함에 대한 사례연구

The case study of wear and defects on the wheel tread for Metro

The wear and defects on the wheel tread are caused by the interface between wheel and rail, the suspension system on bogie, the track condition and etc, which are interacted with complex mechanism. Because of the difficulty of analysis of wheel and rail interaction, the measuring data are necessary for improvement of wheel design and maintenance of train. On this case study, the pattern of wheel wears and defects are presented and lifetime of wheel and the reprofiling period are estimated on a basis of the measured results.