李维均,鲜小红,陈德航,肖衡

• 1:四川职业技术学院智能制造学院
• 2:西华大学机械工程学院

摘要(Abstract)：

踏面制动系统是重载列车基础制动方式之一，是安全运营的重要保障。建立了踏面制动热传导有限元模型，分析了制动产生的热在车轮滚动圆处轴向和径向路径上的传导过程以及相关参数的影响。结果表明在制动过程中温度在踏面接触处最高，远离接触位置温度递减，较远位置处在热传导作用下温度会持续上升一段时间；热流密度的增加会使整个温度场成比例增加；接触面积减少会导致滚动圆附近局部温度大幅增加；踏面与闸瓦的轴向接触位置变化对轮缘附近温升影响较大；车轮材料属性的热传导系数和比热容的减小，踏面中心位置的最高温度都增加。

关键词(KeyWords)： 重载列车;踏面制动;热传导;闸瓦;热流密度

Abstract:

Keywords:

基金项目(Foundation): 四川省科技计划资助项目（2021YFG0220）

作者(Author): 李维均,鲜小红,陈德航,肖衡

DOI: 10.19356/j.cnki.1001-3997.20260402.030

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