Modeling of Coupling Mechanism between Ballast Bed and Track Structure of High-Speed Railway

<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">Contact parameter</td><td class="align_center">Between ballast particles</td><td class="align_center">Between ballast particles and sleeper and side boundary</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Restitution coefficient</td><td class="align_center">0.6</td><td class="align_center">0.6</td></tr><tr><td class="align_left">Coefficient of static friction</td><td class="align_center">0.8</td><td class="align_center">0.86</td></tr><tr><td class="align_left">Dynamic friction coefficient</td><td class="align_center">0.1</td><td class="align_center">0.03</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Contact parameters of the discrete element model.</div>

Mathematical Problems in Engineering

tab2

Table 2

Table 2: Modeling of Coupling Mechanism between Ballast Bed and Track Structure of High-Speed Railway 