Grinding Method for Rail Corrugation in Curved Track

Abstract:

Based on the study of mechanism of formation of rail corrugation on curved track and investigation of current grinding methods of corrugation, an innovative grinding method was proposed together with a prototype grinding machine with more accurate and efficiency grinding operation. Test grindings on metro line were conducted together with measurements of vibration and noise. The results show that the predicted improvements are obtained with less vibration, lower noise and elimination of screaming noise. The new grinding method is better than the traditional method in convenience and efficiency.

Key words:rail corrugation; rail grinding; curved track; grinding machine