随着道路交通网络的不断发展，行车安全已经成为当今社会关注的焦点之一。特别是在恶劣天气条件下，如：雨天，车辆在积水路面上高速行驶时，由于动水升力的存在，很容易出现“滑水”现象，从而导致事故的发生。文章深入分析了轮胎在积水路面上的滑水性能，以提高车辆的行驶稳定性和安全性。首先，使用ABAQUS建立205/55 R16子午线轮胎有限元模型，并且对其进行了静力学分析。接着，基于流固耦合方法，构建了一个包含轮胎、水层和路面的复杂耦合模型。在这个模型中，考虑了轮胎充气压力、水层厚度、轮胎垂向负载以及胎面磨损4个关键因素。有限元模拟分析结果表明，轮胎充气压力和垂向载荷的增大都会导致车辆在积水道路上的极限滑水速度增大；相反，胎面磨损和水层厚度的增大，则会导致车辆在积水道路上的极限滑水速度减小。其中，充气压力对滑水性能影响较大，相同条件下，车辆的极限滑水速度从1.7 bar下的72.43 km/h上升到了2.9 bar下的102.23 km/h。所以，雨天适当增大轮胎充气压力更有利于车辆行驶安全。

With the continuous development of road traffic networks, driving safety has become one of the focuses of attention in today’s society. Especially in bad weather conditions, such as rainy days, when the vehicle is driving at high speed on the waterlogged road, due to the existence of dynamic water lift, it is easy to appear water-skiing phenomenon, resulting in accidents. In order to improve the stability and safety of the vehicles, this paper analyzes the water-skiing performance of the tire on the waterlogged road. Firstly, the finite element model of 205/55 R16 radial tire is established by ABAQUS and analyzed statically. Then, based on the fluid-structure coupling method, a complex coupling model including tire, water layer and road surface is constructed. In this model, four key factors including tire inflation pressure, water layer thickness, tire vertical load and tread wear are considered. Finally, through the finite element simulation analysis, it is shown that the increase of tire inflation pressure and vertical load will lead to the increase of the ultimate water-skiing speed of the vehicle on the waterlogged road. On the contrary, tread wear and the increase of water layer thickness will lead to a decrease in the limit water skiing speed of the vehicle on waterlogged roads. Among them, the inflation pressure has a greater impact on the water-skiing performance, and under the same conditions, the ultimate water-skiing speed of the vehicle increased from 72.43 km/h at 1.7 bar to 102.23 km/h at 2.9 bar. Therefore, it is more conducive to the safety of the vehicle to appropriately increase the inflation pressure of the tire in rainy days.