發(fā)布時(shí)間：2018-03-24 20:12

  本文選題：飛行力學(xué)　切入點(diǎn)：民用運(yùn)輸機(jī)　出處：《中國科技論文》2015年16期

【摘要】：為了分析障礙物對最大起飛重量的限制規(guī)律,以某型民用運(yùn)輸機(jī)為例,給出了計(jì)算障礙物限制重量的方法,對不同環(huán)境因素下,該重量的變化情況進(jìn)行了分析,得到了各因素對障礙物限制重量影響的規(guī)律。結(jié)果表明:障礙物限制重量隨障礙物距離和障礙物高度的增大而增大,增大趨勢均為先急后緩;大氣溫度高于30℃時(shí),每增加1℃則障礙物限制重量線性下調(diào)0.82%~0.87%,其下調(diào)比例隨調(diào)整前重量的增大而增大;氣壓高度大于海平面高度時(shí),每增加1km則障礙物限制重量需線性下調(diào)約10.9%,其下調(diào)比例與調(diào)整前的重量無關(guān);障礙物限制重量在順風(fēng)時(shí)隨風(fēng)速增大而線性下調(diào),在逆風(fēng)時(shí)隨風(fēng)速增大而線性上調(diào),但順風(fēng)時(shí)調(diào)整比例大于逆風(fēng)時(shí)調(diào)整比例,且調(diào)整比例均隨調(diào)整前的重量增大而減小,減小趨勢為先急后緩。
[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，

本文編號(hào)：1659851