Fatigue damage of high speed EMU bolster based on operating conditions
ZHANG Yizhe
LI Qiang
Abstract：In order to estimate the special conditions of EMU(electric multiple units) bolster damage,stress data of some critical points during the train passing through typical operating conditions,such as small-radius curved tracks and turnouts are adopted,and the damage is calculated accordingly.The results are then validated and the fatigue life ranges of critical points are estimated by the bootstrap method.Finally,the influence of typical operating conditions on critical oints of bolsters is revealed by comparative analysis.
Keywords：electric multiple unitsbolsterservice conditionsfatigue damageconfidence
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 74-77,84 )