障碍物对飞机起飞重量的限制规律
发布时间:2018-03-24 20:12
本文选题:飞行力学 切入点:民用运输机 出处:《中国科技论文》2015年16期
【摘要】:为了分析障碍物对最大起飞重量的限制规律,以某型民用运输机为例,给出了计算障碍物限制重量的方法,对不同环境因素下,该重量的变化情况进行了分析,得到了各因素对障碍物限制重量影响的规律。结果表明:障碍物限制重量随障碍物距离和障碍物高度的增大而增大,增大趋势均为先急后缓;大气温度高于30℃时,每增加1℃则障碍物限制重量线性下调0.82%~0.87%,其下调比例随调整前重量的增大而增大;气压高度大于海平面高度时,每增加1km则障碍物限制重量需线性下调约10.9%,其下调比例与调整前的重量无关;障碍物限制重量在顺风时随风速增大而线性下调,在逆风时随风速增大而线性上调,但顺风时调整比例大于逆风时调整比例,且调整比例均随调整前的重量增大而减小,减小趋势为先急后缓。
[Abstract]:In order to analyze the limitation law of obstacle to the maximum take-off weight, taking a certain civil transport aircraft as an example, the method of calculating the limiting weight of obstacle is given, and the variation of this weight under different environmental factors is analyzed. The effects of various factors on the limiting weight of obstacles are obtained. The results show that the limiting weight of obstacles increases with the increase of the distance and height of obstacles, and the increasing trend is first, then slow, and the atmospheric temperature is higher than 30 鈩,
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