引用本文: 曹建虎, 赵雷雷, 于曰伟等. 胎压差影响下车辆并装双胎滑水特性教学仿真. 力学与实践, xxxx, x(x): 1-9.
Cao Jianhu, Zhao Leilei, Yu Yuewei, et al. Teaching simulation on the hydroplaning characteristics of the dual tire assembly under the influence of inflation pressure difference. Mechanics in Engineering, xxxx, x(x): 1-9.
 Citation: Cao Jianhu, Zhao Leilei, Yu Yuewei, et al. Teaching simulation on the hydroplaning characteristics of the dual tire assembly under the influence of inflation pressure difference. Mechanics in Engineering, xxxx, x(x): 1-9.

## TEACHING SIMULATION ON THE HYDROPLANING CHARACTERISTICS OF THE DUAL TIRE ASSEMBLY UNDER THE INFLUENCE OF INFLATION PRESSURE DIFFERENCE

• 摘要: 车辆并装双胎常存在胎压不一致现象，胎压差影响下湿滑路面并装双胎滑水行为及特性尚未探明。针对该问题，基于流固耦合原理，建立车辆并装双胎-积水-路面流固耦合模型并验证有效性，探明胎压差对滑水动力学行为的影响机理，揭示不同胎压差下双胎运动状态、水膜厚度对双胎滑水特性的影响规律。结果表明：并装双胎滑水时双胎间隙存有大量积水，积水高度远超水膜厚度；并装双胎自由滚动状态时胎压差增加，滑水性能降低；相同胎压差下，防抱死制动系统（Anti-lock braking system，ABS）控制状态较自由滚动状态更易发生滑水；水流竖向托举力随胎压差和水膜厚度的增大而增大。该研究可用于指导并装双胎车辆设计和使用，进一步提高湿滑路面上车辆行驶安全性，也为轮胎滑水动力学教学仿真与实验提供参考。

Abstract: The tire inflation pressure is often inconsistent when the vehicle is equipped with the dual tire assembly (DTA). Under the influence of the inflation pressure difference, the hydroplaning behavior and characteristics of the DTA have not been revealed. Aiming at the problem, a new model considering the fluid-solid coupling of the accumulation water, the pavement surface, and the DTA with the inflation pressure difference was proposed. Its effectiveness was verified by experiment and simulation. Moreover, the influences of the inflation pressure difference on the hydroplaning behavior and characteristics were revealed. The results show that there is a lot of water in the gap between the dual tires, and its thickness far exceeds that of the water film when the hydroplaning happens. The water lifting force increases with the increase of the inflation pressure difference and the water film thickness. Moreover, the ABS control state is more prone to hydroplaning than the free-rolling state. This research can be used to guide the design and use of the DTA further to improve the driving safety of vehicles on wet pavement. At the same time, it also provides a reference for the teaching simulation and course experiment of the DTA hydroplaning dynamics.

/

• 分享
• 用微信扫码二维码

分享至好友和朋友圈