Study on the Factors Affecting the Wheel–Rail Lateral Impact of the Forepart of the Curved Switch Rail

In the switch rail section of a high-speed turnout, wheel–rail lateral impact forepart curved is most important factor affecting passing performance. order to reduce and improve safety, complete vehicle–track multi-body dynamics model devised in this paper. The variation relationship when train passes through analyzed. force derailment coefficient are calculated under different parameters, wear index also some working conditions. results show that properly reducing damping can effectively section, while keeping track shape undamaged. optimization cant design plays an role alleviating impact. Decreasing height reduction helpful optimize rail. selection suitable cutting mode for blade reasonable control angle as well speed have positive effects on controlling