Influence of Wheel Profile Wear Coupled with Wheel Diameter Difference on the Dynamic Performance of Subway Vehicles

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Grade</td><td class="align_center" rowspan="2">Rating</td><td class="align_center" colspan="3">Ride comfort index</td></tr><tr class="thead"><td class="align_center">Carriage</td><td class="align_center">Locomotive</td><td class="align_center">Freight car</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_center">Excellent</td><td class="align_center">&lt;2.5</td><td class="align_center">&lt;2.75</td><td class="align_center">&lt;3.5</td></tr><tr><td class="align_left">2</td><td class="align_center">Good</td><td class="align_center">2.5∼2.75</td><td class="align_center">2.75∼3.10</td><td class="align_center">3.5∼4.0</td></tr><tr><td class="align_left">3</td><td class="align_center">Fair</td><td class="align_center">2.75∼3.0</td><td class="align_center">3.1∼4.0</td><td class="align_center">4.0∼4.25</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Vehicle ride comfort index and grading.</div>

Shock and Vibration

tab6

Table 6

Table 6: Influence of Wheel Profile Wear Coupled with Wheel Diameter Difference on the Dynamic Performance of Subway Vehicles 