机场转弯滑行道增补面设计新方法

谈至明; 姚尧; 陈景亮

doi:10.19818/j.cnki.1671-1637.2016.05.002

机场转弯滑行道增补面设计新方法

doi: 10.19818/j.cnki.1671-1637.2016.05.002

同济大学道路与交通工程教育部重点实验室, 上海 201804

基金项目:

国家自然科学基金项目 51378394

国家863计划项目 2006AA11Z111

详细信息

作者简介:
谈至明(1960-), 男, 上海人, 同济大学教授, 工学博士, 从事路面工程研究

中图分类号: V351.11
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出版历程
- 收稿日期: 2016-05-13
- 刊出日期: 2016-10-25

New design method of supplemented surface for airport turnoff taxiway

Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 201804, China

More Information

Author Bio:
TAN Zhi-ming(1960-), male, professor, PhD, +86-21-69583739, tanjk@online.sh.com

摘要

摘要: 为了简化机场滑行区弯道增补面设计方法, 依据飞机滑行时起落架轮胎的转弯轮迹, 建立相应的微分方程, 并将飞机滑行轨迹分为鼻轮在圆曲线上行驶和鼻轮驶入直线2段进行求解, 得到了增补面内缘线的解析解; 引入相对纵距、位置系数和表征转弯道面增补面加宽量的增补宽度系数, 分析了转弯道面增补面特征, 基于不同弯道转角与相对纵距下增补宽度系数的相似性, 给出了圆曲线上增补宽度系数的回归方程与直线段开始时飞机纵轴与驶出直线初始夹角的修正式; 结合圆曲线上增补面内缘线的微分方程解提出了机场转弯滑行道增补面设计新方法, 并与ICAO方法进行了对比。计算结果表明: 当弯道转角为135°, 半径为45m, 飞机最大轴距为25m, 主起落架宽度为13m时, 采用新方法计算的最大增补面加宽量为7.52m, 采用ICAO方法计算的最大增补面加宽量为7.53m, 两者差别小于0.2%;采用新方法只需确定弯道的分界点, 便可计算出弯道增补面内缘线任一点的坐标, 但是采用ICAO方法必须求出整个增补面内缘线后才能确定某一增补面内缘点的坐标, 因此, 新方法不仅计算结果满足精度和安全性要求, 而且计算过程简单, 使用方便。
- 机场工程 /
- 道面设计 /
- 飞机轮迹 /
- 增补面设计方法 /
- ICAO方法
Abstract: In order to simplify the design methods of supplemented surface bend on airport, the corresponding differential equation was established based on the turning track of landing gear tire when the plane glided on the runway, the gliding track was divided into two stages to solve the equation: nose wheel driving on the circular curve and nose wheel entering the straight section, and the analytical solution was obtained.The properties of supplemented surface for turning pavement were analyzed by introducing longitudinal space, position coefficient and supplemented width coefficient representing the widening value of supplemented surface for turning pavement.Based on the similarity of fillets width coefficients on different relative longitudinal distances and corner angles, the regression equation of fillets width coefficient was calculated, and the correctional formula of the angle between aircraft and exit line at the beginning of nose wheel entering the straight section was obtained.The new design method of supplemented surface for turning runway was put forward based on the differential equation solution of inner edge of supplemented surface on the circular curve, and was compared with ICAO method.Computationresult shows that when the turning angle is 135°, the curve radius is 45 m, the maximum wheelbase of plane is 25 m, and the width of main landing gear is 13 m, the adding width of supplemented surface calculated by using the new design method is 7.52 m, the value calculated by using ICAO method is 7.53 m, and the difference is less than 0.2%.When the cutoff point of curve is determined, any point coordinates of inner edge line of supplemented surface can be computed by using the new design method, while the inner edge line of supplemented surface must be determined in order to compute any point coordinates by using ICAO method.So, the calculated result of new method meets the precision and safety requirements, the calculation process is simple, and the use is easy.
- airport engineering /
- pavement design /
- plane wheel track /
- design method of supplemented surface /
- ICAO method

HTML全文

图 1 机场弯道平面几何关系

Figure 1. Plane geometry relation of airport bend

下载: 全尺寸图片幻灯片

图 2 轮迹微分关系

Figure 2. Differential relation of wheel track

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图 3 鼻轮进入直线段

Figure 3. Nose wheel driving into straight section

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图 4 不同α_m时δ与φ_i的关系

Figure 4. Relationship between δ and φ_i for different α_m

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图 5 不同η时δ与φ_i的关系

Figure 5. Relationship between δ and φ_ifor differentη

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图 6 λ与η/α_m的关系

Figure 6. Relationship between λ and η/α_m

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图 7 增补面计算结果

Figure 7. Calculation result of supplemented surface

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表 1 安全距离

Table 1. Safe distances

下载: 导出CSV

表 2 增补面内缘线计算结果

Table 2. Calculation result of inside edge line for supplemented surface

下载: 导出CSV

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