轮胎滚动水滑特性的流固耦合分析
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摘要
借助ABAQUS软件,以P205/55R16子午线轮胎为例,完成了从隐式分析向显式分析的结果传递,实现了轮胎水滑仿真。结果表明,根据对水流浮力和行驶速度关系的比较,验证了所建立轮胎水滑的流固耦合模型的可靠性;楔形水膜的水压相较于周边偏高,行驶速度越快,楔形水膜处水压越大,越易发生水滑现象;楔形水膜上下流层流速不均,下层水流流速较慢,是水滑的主要诱因;临界水滑速度随着水膜厚度的增加而降低。
As an example of the P205/55 R16 radial tire,the tire hydroplaning simulations were achieved by the explicit import analysis from the standard analysis with ABAQUS software.The results showed that the validity of the hydroplaning fluid-structure coupling model in this study is verified by comparing the relationship between the water lift force and the rolling velocities.The pressure of the wedge-shaped water film is higher than that of the surrounding areas.The higher the rolling velocity causes,the higher of the pressure at the wedge-shaped water film is,and the more easily induces the hydroplaning.Moreover,the velocities of the upper and lower layers of the wedge-shaped water film are uneven,and the velocities of the underlying water flow are relatively slow,which mainly induces the hydroplaning.The critical hydroplaning velocity decreases with the increase of the thickness of the water film.
As an example of the P205/55 R16 radial tire,the tire hydroplaning simulations were achieved by the explicit import analysis from the standard analysis with ABAQUS software.The results showed that the validity of the hydroplaning fluid-structure coupling model in this study is verified by comparing the relationship between the water lift force and the rolling velocities.The pressure of the wedge-shaped water film is higher than that of the surrounding areas.The higher the rolling velocity causes,the higher of the pressure at the wedge-shaped water film is,and the more easily induces the hydroplaning.Moreover,the velocities of the upper and lower layers of the wedge-shaped water film are uneven,and the velocities of the underlying water flow are relatively slow,which mainly induces the hydroplaning.The critical hydroplaning velocity decreases with the increase of the thickness of the water film.
引文
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[2] OKANO T.A new computational procedure to predict transient hydroplaning performance of a tire[J].Tire Science and Technology,2001,29(1):2-22.
[3] CHO J R,LEE H W,SOHN J S,et al.Numerical investigation of hydroplaning characteristics of three dimensional patterned tire[J].European Journal of Mechanics A/Solids,2006,25(6):914-926.
[4] CHO J R,CHOI J H,LEE H W,et al.Braking distance prediction by hydroplaning analysis of 3-D patterned tire model[J].Journal of System Design and Dynamics,2007,1(3):398-409.
[5] 臧孟炎,陈高军,林银辉.湿滑路面轮胎制动距离有限元仿真分析[J].中国机械工程,2012,23(10):1246-1251.
[6] 刘娜,程钢,程强,等.湿滑路面上子午线轮胎的爬坡性能分析[J].弹性体,2013,23(1):29-32.
[7] 程钢,马祎涵,原政军,等.轮胎水滑性能研究及防水滑结构的应用[J].弹性体,2017,27(5):72-77.
[8] 燕山.载重子午线轮胎有限元分析与实验研究[D].青岛:青岛科技大学,2013.
[9] 王伟,燕山.带花纹轮胎静负荷试验与仿真分析[J].橡胶工业,2014,61(2):107-110.