ABSTRACT

Studying the hydroplaning behaviour is crucial for enhancing the safety of aviation during the landing stage. Due to the special nature of the aviation field, such as high aircraft velocity, wheel load and operating frequency, accurate numerical simulation is considered an effective method for investigating the tire hydroplaning behaviour. In this study, a fluid–solid coupling model was established using the coupled Eulerian–Lagrangian algorithm to analyze the hydroplaning behaviour. To reveal the influences of factors such as the runway texture, slip ratio, velocity and water-film thickness on tire hydroplaning, some parameters such as the skid number, water distribution, and tire inflation pressure were extracted. Moreover, the real pavement textures of stone mastic asphalt, an open-graded friction course, and asphalt concrete were determined to construct a real runway model and water-film thicknesses of 3, 7, and 10 mm were selected to study their effects on aircraft hydroplaning. The numerical simulation results were verified by calculating the braking distance and conducting trailer test, and the results prove that the numerical model can be applied for the multifactor analysis of tire hydroplaning behaviour.

摘要

研究滑水行为对于提高着陆阶段的航空安全至关重要。由于航空领域的特殊性，如高飞机速度、高轮载和运行频率，精确的数值模拟被认为是研究轮胎滑水行为的有效方法。在这项研究中，使用耦合欧拉-拉格朗日算法建立了流固耦合模型来分析滑水行为。为揭示跑道纹理、滑移率、速度和水膜厚度等因素对轮胎打滑的影响，提取了滑行数、水分布和轮胎充气压力等参数。此外，石乳沥青的真实路面纹理，开放级配摩擦层，确定了沥青混凝土和沥青混凝土以构建真实的跑道模型，并选择了 3、7 和 10 毫米的水膜厚度来研究它们对飞机滑水的影响。通过计算制动距离和进行拖车试验验证了数值模拟结果，结果证明该数值模型可用于轮胎滑水行为的多因素分析。