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飞机起飞航迹计算中发动机推力计算方法

, PP. 59-63

Keywords: 机场净空,起飞航迹,发动机瞬时推力,拉格朗日插值

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Abstract:

为了确定飞机起飞航迹,应用数值计算理论,提出了发动机瞬时推力的计算方法,以发动机推力曲线已知推力为基础,通过拉格朗日插值确定未知推力。基于计算的发动机瞬时推力,计算了起飞航迹,并与实测航迹进行了比较。计算结果表明飞机1的实测拟合航迹与程序计算航迹的最大绝对误差不超过10m,最大相对误差不超过3.9%;飞机2的实测拟合航迹与程序计算航迹的最大绝对误差不超过35m,最大相对误差不超过8.3%,计算方法可靠。

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