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胎压差影响下车辆并装双胎滑水特性教学仿真

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载货车辆并装双胎滑水实验极具危险性,在高校车辆类专业教学中难以开展,且胎压差影响下的滑水机理至今尚未探明.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.
TEACHING SIMULATION ON THE HYDROPLANING CHARACTERISTICS OF THE DUAL TIRE ASSEMBLY UNDER THE INFLUENCE OF INFLATION PRESSURE DIFFERENCE
The hydroplaning experiment of the dual tire assembly for trucks is extremely dangerous and difficult to carry out in the teaching of vehicle related majors in universities.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.

double tire assemblyfluid-solid couplingdifferent tire inflation pressurehydroplaning behaviorhydroplaning characteristics

曹建虎、赵雷雷、于曰伟、张浩、刘越超

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山东理工大学交通与车辆工程学院,山东淄博 255000

并装双胎 流固耦合 胎压差 滑水行为 滑水特性

山东省重点扶持区域引进急需紧缺人才项目山东省自然科学基金山东省优质专业学位教学案例库建设项目山东理工大学研究生教育质量提升计划项目山东理工大学继续教育研究项目山东理工大学本科教学研究与改革项目

2022-30ZR2020ME127SDYAL2023113222069122012222213

2024

10.6052/1000-0879-23-581

力学与实践
中国力学学会 中国科学院力学研究所

力学与实践

CSTPCD
影响因子：0.452
ISSN：1000-0879
年,卷(期)：2024.46(5)
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