仿生非光滑沟槽轮胎抗滑水性能研究  

Research on Anti-Hydroplaning Performance of Bionic Non-Smooth Groove Tire

作　　者：刘从臻[1] 孙运芬 李永强 徐成伟 谢孟雨 Liu Congzhen;Sun Yunfen;Li Yongqiang;Xu Chengwei;Xie Mengyu(Shandong University of Technology,Zibo 255000)

机构地区：[1]山东理工大学,淄博255000

出　　处：《汽车技术》2022年第3期55-62,共8页Automobile Technology

基　　金：国家自然科学基金项目(51875327);山东省自然科学基金项目(ZR2018LE010)。

摘　　要：基于仿生非光滑减阻理念,选择鲨鱼皮表面鳞盾沟槽作为研究对象,将仿生非光滑结构应用于复杂轮胎花纹沟底,在不改变轮胎其他性能的前提下提高轮胎抗滑水性能。以185/60 R15轮胎为例,运用计算流体力学方法,分析了3种仿生非光滑沟槽在不同水流速度下的减阻及抗滑水性能,进一步研究其减阻机理,并将优选结构应用到轮胎花纹沟底部。结果表明:仿生非光滑沟槽主要通过影响流体边界层结构实现减阻;与原胎相比,仿生胎可有效降低轮胎表面动水压力,提高轮胎滑水速度,保障车辆在湿滑路面的行驶安全性。Based on the concept of bionic non-smooth drag reduction,the scale shield groove on shark skin surface is selected as the research object.The bionic non-smooth structure is applied to the groove bottom of complex tire pattern to improve the hydroplaning resistance of tire without changing other performance of tire.With 185/60 R15 tire as the research object,using Computational Fluid Dynamics(CFD)method,the drag reduction and anti-hydroplaning performance of three kinds of bionic non-smooth grooves are analyzed under different flow speeds,and the drag reduction mechanism is studied.The optimized bionic structure is applied to the bottom of tread groove.The results show that the bionic nonsmooth groove can reduce drag mainly by affecting the burst structure of fluid boundary layer.Compared with the original smooth tire,the bionic tire can effectively reduce the hydrodynamic pressure on the tire surface and improve the hydroplaning speed of the tire,ensure driving safety of vehicle on wet and slippery road.

关 键 词：轮胎花纹沟 仿生非光滑沟槽 减阻机理 边界层 动水压力 

分 类 号：U463.3[机械工程—车辆工程]