通过控制轮轨摩擦降低重载铁路轮轨作用力的研究

Study on Reducing Wheel-rail Interaction Force of Heavy Haul Railway by Controling Wheel-rail Friction

神朔铁路的万吨列车运营已经常态化,运量逐年增加,列车与钢轨之间的横向作用力越来越大,车辆和轨道结构有加速损伤的趋势,给运营安全带来隐患。为了从根源上解决神朔铁路轮轨作用力大的问题,引入了通过控制轮轨摩擦来优化轮轨接触界面的新技术,并开展了试验验证。测试结果表明:采用摩擦控制技术之后,轮对横向力C64降低约42%~46%,C70降低约25%~35%,C80降低约37%~43%;脱轨系数C64外轨、内轨分别降低约20%,29%,C70外轨、内轨分别降低约29%,35%,C80外轨、内轨分别降低约14%,23%。

The 10 000 t freight train operation has been normalized on Shenmu-Shuozhou Railway,and the freight volume increases year by year. So the transverse force between train wheels and rails increases,the vehicle and track structure has the trend of accelerating damage,which brings hidden trouble to operation safety. In order to thoroughly solve the problem of large wheel-rail interaction force on Shenmu-Shuozhou Railway,a new technology of optimizing wheel-rail contact by controlling wheel-rail interface friction was introduced and test research was carried out to verify its effectiveness. The test results show that the transverse force of wheel set of C64 vehicle decreases about 42%~ 46%,C70 decreases about 25%~35%,C80 decreases about 37%~ 43%.Derailment coefficients of C64 decreases about 20% at outside rail and 29% at inside rail,C70 decreases about 29% at outside rail and 35% at inside rail,and C80 decreases about 14% at outside rail and 23% at inside rail.