Scholarlink

<p>To investigate the motion resistance and surface friction of aircraft on dry snow-contaminated runway, this study takes A320 main landing gear tires as an example. With the Modified Capped Drucker-Prager (MCDP) model for dry snow characteristics, a tire-snow surface interaction model is established to analyze aircraft resistance and friction on snow covered runway. The results indicate positive correlations between tire speed, dry snow depth, and snow density with motion resistance, while they exhibit negative correlations with pavement friction. For snow depths exceeding 25&#xa0;mm, the motion resistance experiences exponential growth as the ground speed increases. When the speed is slow, the density of snow has a greater impact on the resistance. When the dry snow depth exceeds 50&#xa0;mm (including 50&#xa0;mm), the friction force decreases significantly at lower ground speed. When the ground speed exceeds 150&#xa0;km/h, the friction force decreases linearly with the increase of dry snow depth. Pavement friction is also influenced by the slip ratio, increasing initially and then decreasing as slip ratio increases. The friction coefficient of pavement decreases with the increase of dry snow depth and tire speed. At the constant ground speed, the reduction in the friction coefficient becomes progressively less pronounced with increasing dry snow depth. After more than 50&#xa0;mm, the depth of dry snow has a great influence on the friction coefficient. At this condition, the pavement friction coefficient tends to be stable and reaches its minimum. Based on the above research findings, it is recommended that aircraft should avoid takeoff and landing on runways with snow depths exceeding 50&#xa0;mm, and should not operate on runways with compacted, high-density snow. After landing, aircraft should aim to taxi at low speeds on snow-covered runways. This study offers critical insights into the behavior of aircraft tires on snow-contaminated runways, which are crucial for enhancing runway surface management strategies and ensuring safe takeoff and landing on dry snow-covered runways during winter operations.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Study on Interaction between Tire and Pavement on Dry Snow-Covered Runway

  • 期刊论文

  • 发表日期：

    2025年3月12日

查看全文
  • Qiqi Ran,
  • Junqi Gao,
  • Yunfei Lin

摘要

To investigate the motion resistance and surface friction of aircraft on dry snow-contaminated runway, this study takes A320 main landing gear tires as an example. With the Modified Capped Drucker-Prager (MCDP) model for dry snow characteristics, a tire-snow surface interaction model is established to analyze aircraft resistance and friction on snow covered runway. The results indicate positive correlations between tire speed, dry snow depth, and snow density with motion resistance, while they exhibit negative correlations with pavement friction. For snow depths exceeding 25 mm, the motion resistance experiences exponential growth as the ground speed increases. When the speed is slow, the density of snow has a greater impact on the resistance. When the dry snow depth exceeds 50 mm (including 50 mm), the friction force decreases significantly at lower ground speed. When the ground speed exceeds 150 km/h, the friction force decreases linearly with the increase of dry snow depth. Pavement friction is also influenced by the slip ratio, increasing initially and then decreasing as slip ratio increases. The friction coefficient of pavement decreases with the increase of dry snow depth and tire speed. At the constant ground speed, the reduction in the friction coefficient becomes progressively less pronounced with increasing dry snow depth. After more than 50 mm, the depth of dry snow has a great influence on the friction coefficient. At this condition, the pavement friction coefficient tends to be stable and reaches its minimum. Based on the above research findings, it is recommended that aircraft should avoid takeoff and landing on runways with snow depths exceeding 50 mm, and should not operate on runways with compacted, high-density snow. After landing, aircraft should aim to taxi at low speeds on snow-covered runways. This study offers critical insights into the behavior of aircraft tires on snow-contaminated runways, which are crucial for enhancing runway surface management strategies and ensuring safe takeoff and landing on dry snow-covered runways during winter operations.