湿滑路面上固体颗粒对轮胎附着性能的影响
Effects of solid particles on adhesion performance of tread on wet road

徐新泉 ¹ 刘伟 ² 刘焜 ¹

文摘	文章依据流体动力润滑理论,把轮胎的黏性滑水现象模拟为光滑胎面单元与粗糙路面之间的动压、挤压膜问题,同时考虑了雨水中固体颗粒浓度对黏度的影响,从而建立了轮胎/路面黏性滑水现象的平均流量模型,并进行数值求解,分析了固体颗粒、外载荷、初始高度、滑动速度等因素对轮胎附着性能的影响。结果表明,外载荷、初始高度、滑动速度对轮胎湿附着性能有重要影响,减少液膜中固体颗粒浓度有利于提高胎面单元的湿附着性能。这些结果将促进轮胎黏性滑水理论的进一步完善。
其他语种文摘	Based on the hydrodynamic lubrication theory and taking the effects of hydrodynamic action and squeezing action between the smooth tread and the rough road and the volume concentration of the solid particles in rain water into account,an average flow model is developed to simulate the viscous hydroplaning of tire/road.This model can be used to analyze the effects of solid particles,loads,initial thickness and tire velocities on wet adhesion performance of tire with numerical solutions.The results show that the wet adhesion performance of tire is greatly affected by the factors of loads,initial thickness and tire velocities,and the performance can be improved by reducing the volume concentration of the solid particles.This study is valuable for the improvement of the viscous hydroplaning theory of tire.
来源	合肥工业大学学报. 自然科学版 ,2012,35(2):149-152,229 【扩展库】
关键词	动力润滑 ; 固体颗粒浓度 ; 平均流量模型 ; 轮胎/路面
地址	1. 合肥工业大学机械与汽车工程学院, 安徽, 合肥, 230009 2. 中科院合肥物质科学研究院, 安徽, 合肥, 230031
语种	中文
文献类型	研究性论文
ISSN	1003-5060
学科	公路运输
基金	国家自然科学基金资助项目
文献收藏号	CSCD:4447611