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Hazardous Levels of Commercial Aircraft Response to Atmospheric Turbulence

机译:商用飞机对大气湍流的危险水平

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Jet commercial aircraft in flight are frequently subject to atmospheric turbulence resulting in rapidly varying aerodynamic and flight dynamic characteristics. These varying characteristics not only pose threats to flight safety, but also may cause structural damages and reduce fatigue life. The sudden plunging motion in severe turbulence is the major reason to cause the flight injuries. To express the turbulence intensities as the hazardous levels, the root-mean-square g-load, usually for structural load, has been examined in the past twenty years. The present study is to examine alternative ideas to express the hazardous levels of sudden plunging motion in atmospheric turbulence. The flying-quality parameters of the plunging mode and integrated turbulence-induced downwash will be proposed as more reliable parameters for the turbulence hazard levels.
机译:在飞行中的喷气商务飞机经常受到大气湍流的影响,从而导致空气动力学和飞行动力学特性迅速变化。这些变化的特性不仅威胁飞行安全,而且可能导致结构损坏并缩短疲劳寿命。剧烈湍流中的突然下降运动是造成飞行伤害的主要原因。为了将湍流强度表示为危险水平,在过去的二十年中已经研究了通常用于结构载荷的均方根g载荷。目前的研究是要探讨替代的想法,以表达在大气湍流中突然下降运动的危险程度。暴动模式的飞行质量参数和综合的湍流引起的下冲将作为湍流危害等级的更可靠参数被提出。

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