Generation and Evolution Conditions of Polygonal Wear of High-Speed Wheel

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Parameter</td><td class="align_center">Values</td><td class="align_center">Unit</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">The inner diameter of axle</td><td class="align_center">60</td><td class="align_center">mm</td></tr><tr><td class="align_left">The outer diameter of axle</td><td class="align_center">190</td><td class="align_center">mm</td></tr><tr><td class="align_left">Journal center distance</td><td class="align_center">1956</td><td class="align_center">mm</td></tr><tr><td class="align_left">Rolling circle distance</td><td class="align_center">1493</td><td class="align_center">mm</td></tr><tr><td class="align_left">Track stiffness <i>k</i><sub><i>R</i></sub></td><td class="align_center">20</td><td class="align_center">MN.m<sup>−1</sup></td></tr><tr><td class="align_left">Wheel track creep factor <i>μ</i></td><td class="align_center">0.25</td><td class="align_center"> </td></tr><tr><td class="align_left">Material density</td><td class="align_center">7860</td><td class="align_center">kg/m<sup>3</sup></td></tr><tr><td class="align_left">Elastic modulus</td><td class="align_center">2.059 × 10<sup>11</sup></td><td class="align_center">Pa</td></tr><tr><td class="align_left">The wheel radius <i>D</i></td><td class="align_center">920</td><td class="align_center">mm</td></tr><tr><td class="align_left">Poisson’s ratio</td><td class="align_center">0.3</td><td class="align_center"> </td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Calculation parameters of wheelset rotor system.</div>

Shock and Vibration

tab2

Table 2

Table 2: Generation and Evolution Conditions of Polygonal Wear of High-Speed Wheel 