本文给出了利用展向吹气控制飞行器正弦俯仰振荡的气动力迟滞环。模型为６０°三角翼翼－身组合体；俯仰振荡的减缩频率为０．０３９和０．０７８，实验迎角范围为０°～６０°。实验研究包括流态显示和气动力测量。结果表明展向吹气可以明显改善飞行器动态运动中的气动力迟滞特性，使上仰和下俯过程中气动力的差异显著减小，即减小了“迟滞环”的宽度。 In this paper, the aerodynamic hysteresis loop using pitch-induced pitching oscillation of the aircraft is given. The model is a 60 ° delta wing-body combination; the pitch oscillations have a reduction frequency of 0.039 and 0.078, and the experimental angle of attack ranges from 0 ° to 60 °. Experimental studies include flow display and aerodynamic measurements. The results show that the inflatable blowing can obviously improve the aerodynamic hysteresis characteristics during the dynamic movement of the aircraft, and significantly reduce the difference of the aerodynamic forces in upward and downward flight, that is, reduce the width of the hysteresis loop.