文章摘要
石海波, 焦晓辉.某型运输机发生严重颠簸时的阵风响应分析[J].空军工程大学学报:自然科学版,2021,22(1):39-44
某型运输机发生严重颠簸时的阵风响应分析
Gust Response Analysis of a Transport Aircraft in Severe Turbulence
  
DOI:
中文关键词: 运输机  严重颠簸  阵风  自动驾驶仪  法向过载
英文关键词: transport aircraft  severe turbulence  gust  autopilot  normal overload
基金项目:
作者单位
石海波, 焦晓辉 中国飞行试验研究院 西安 710089 
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中文摘要:
      介绍了某型运输机在飞行中遭遇阵风,引起飞机发生严重颠簸的情况。分析了颠簸时自动驾驶仪参数、发动机参数和飞机纵向参数变化。结果显示,高度、指示空速、迎角、俯仰角、法向过载等飞参在飞机遭遇阵风时的响应迟滞不同。同时计算得到飞机的相对升力(与颠簸前飞机稳定平飞时升力的比值)和垂直风速,其极值分别为0.25 m/s和-11.58 m/s,出现在飞机发生严重颠簸(最大法向过载增量为-0.52)时。
英文摘要:
      A certain type of transport aircraft encountered gusts in flight and caused serious turbulence of the aircraft is introduced, and the autopilot parameters, engine parameters and aircraft longitudinal parameters during turbulence are analyzed. The results show that the response hysteresis of flight parameters such as altitude, indicated airspeed, angle of attack, pitch angle and normal overload is different when the aircraft encounters gust. At the same time, the relative lift (the ratio of the lift to the lift when the aircraft is flying steadily before bumping) and the vertical wind speed are calculated, and their extreme values are 0.25 m/s and -11.58m/s respectively in appearing when the aircraft is seriously bumped (the maximum normal overload increment is 0.52). The analysis results are only for reference to studying gust response and gust load mitigation of transport aircraft.
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