轮轨水介质粘着分析

Adhesion Analysis of Wheel and Rail with Water Medium

借助于水介质作用下轮轨接触的数值解法 ,在忽略了由水介质传递的轮轨牵引力的条件下 ,建立了高速轮轨水介质粘着力的数值分析方法。给出了水介质作用下轮轨粘着力随列车运行速度的提高而急剧下降的变化特性 ,并定性地讨论了轮轨粘着力的这种下降的机理。

Based on the numerical method for the contact of wheel and rail with a water medium, a numerical method of analyzing the adhesive force between high speed wheel and rail with a water medium is developed under the condition of neglecting the part of traction forces transferred by the water medium. For the case that there is a water medium between wheel and rail, the sharp decrease characteristic of the adhesive force between wheel and rail with the increase of the train speed is presented. The mechanism of the decrease characteristic of the adhesive force is qualitatively discussed.