轮胎/路表间水膜受力和排出特征及其受刻槽参数的影响分析
Analysis of Stress and Drainage Characteristics of Water Film between Tire and Road Surface and Influence of Groove Parameters
孙振浩 1陈俊2
作者信息
- 1. 山东省交通规划设计院集团有限公司,山东 济南 250101;河海大学 土木与交通学院,江苏 南京 210098
- 2. 河海大学 土木与交通学院,江苏 南京 210098
- 折叠
摘要
为研究轮胎作用下水泥混凝土路表水膜受力特征及其受刻槽的影响,采用SolidWorks和Ansys WorkBench,构建了轮胎‒水膜‒路表有限元模型,基于CFD控制方程和流固耦合理论,分析轮胎作用下路表水膜流动规律以及水膜厚度、行车速度、刻槽宽度、间距和方向对轮胎所受动水升力的影响.结果表明:轮胎迎水面所受动水升力随水膜厚度的增加而增大;当水膜厚度超过轮胎花纹深度后,动水升力增幅明显变大;增加路面刻槽宽度或减小刻槽间距,能够有效地降低轮胎所受的动水升力;在相同的刻槽参数下,路面横向刻槽的排水性能和对动水升力的降低幅度要优于纵向刻槽.
Abstract
In order to study the stress characteristics of water film on cement concrete road surface under the action of the tire and the influence of grooves,the finite element model of tire-water film-road surface was constructed using SolidWorks and Ansys Workbench.Based on computational fluid dynamics(CFD)control equation and fluid-structure coupling theory,the flow law of water film on road surface under the action of the tire and the influence of water film thickness,driving speed,groove width,groove spacing,and groove direction on the hydrodynamic lift of tire were analyzed.The results show that the hydrodynamic lift of the tire increases with the increasing water film thickness.The hydrodynamic lift increases obviously as the water film thickness exceeds the tread depth of the tire.The hydrodynamic lift of the tire can be reduced effectively by increasing the groove width and decreasing the groove spacing.The drainage performance of transverse pavement grooves is better than that of longitudinal pavement grooves under the same groove parameters,and the effect of the former in reducing the hydrodynamic lift is better.
关键词
轮胎/水膜/路表/动水升力/刻槽Key words
tire/water film/road surface/hydrodynamic lift/groove引用本文复制引用
基金项目
国家自然科学基金资助项目(52144567)
江苏省自然科学基金资助项目(BK20191300)
长沙理工大学公路养护技术国家工程实验室开放基金资助项目(kfj180107)
中央高校基本科研业务费专项资金资助项目(B210202036)
出版年
2024
国家科技期刊平台
NSTL
万方数据