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探讨了在风切变作用下，带有增稳系统的直升机数学模型的建立；并按国家军标军用直升机飞行品质规范的要求，采用了线性风切变的模型；研究了在正常和恶劣风切变环境下，在海平面悬停状态、前飞状态μ＝０．１，０．２５及前、后重心的情况下，计算自然直升机和带增稳系统直升机的特征根，并进行了等级评定。计算、分析、评定的结果表明，在低空风切变的作用下，带有增稳系统的直升机，除个别长周期模态外，均满足军用直升机飞行品质规范在正常和恶劣两种环境下的等级要求
The establishment of a mathematical model of helicopter with stabilizing system under wind shear is discussed. The model of linear wind shear is adopted according to the requirements of the national military standard helicopter flight quality specification. Under the shear environment, the characteristic roots of natural helicopter and helicopter with augmentation system are calculated under the condition of hovering at sea level, μ = 0.1,0.25 before flight and the center of gravity before and after flight, assessment. The results of calculation, analysis and assessment show that helicopters with augmentation system, except for some long-period modalities, meet the requirements of the military helicopter flight quality specification under both normal and adverse conditions under the action of low-level wind shear. Grade requirements