摘要
运输机起飞性能分析主要是根据飞机的性能、机场相关条件计算满足规章要求的最大起飞重量及相应起飞特征速度。限制最大起飞重量的因素很多,包括跑道条件、爬升梯度、结构强度和障碍物等,其中障碍物限制往往是很多机场最苛刻的限制,因此对障碍物限制的起飞重量进行优化关系到航空公司运行的安全性和经济性。本文通过分析起飞飞行航迹的定义和运动方程,给出了计算障碍物限制的起飞重量的基本原理和流程图,分析了不同改平高度对障碍物限制的起飞重量的影响,并以空客和波音的典型机型为例给出了不同改平高度对障碍物限重影响和起飞性能优化的结果。
Takeoff performance analysis of transport aircraft is to calculate maximum take-off weight and speed for the operation mainly based on aircraft performance and airport related conditions. There are a lot of factors limiting maximum take-off weight, such as runway condition, climb gradient, structural strength and obstacle etc. And obstacle is often the most rigorous restriction to maximum take-off weight for many airports. So the obstacle limit to maximum take-off weight is optimized in relation to the safety and economy of airline operation. In this paper, the definitions and equations of motion of take-off flight path are analyzed, and the basic principle and flow chart of maximum take-off weight calculated by obstacle limitation is given. The results of the different level-off altitude influ- ence on the obstacle limit to maximum takeoff weight are analyzed. Taking the typical model of Airbus and Boeing for example, the optimized results of obstacles limit to take-off weight determined by different level-off altitude and take-off performance are given.
出处
《中国民航飞行学院学报》
2017年第1期38-43,共6页
Journal of Civil Aviation Flight University of China
关键词
最大起飞重量
改平高度
运输机
Maximum takeoff weight
Level-off altitude
Transport aircraft
