以玻璃弹丸为强化介质，基于试片重复使用的试验方案、规划求解和正交试验设计，分析了弹丸直径、喷射压力及喷嘴至试片受喷表面的距离对喷丸强度的影响权重，探讨了喷射压力、弹丸直径对弧高度、喷丸强度及饱和时间的影响规律．结果显示: 经过相同喷丸时间，弧高度随喷射压力的增大呈近似线性增加趋势，随弹丸直径的增大呈前期快速增加而后期缓慢增加趋势; 喷丸强度随喷射压力的增大呈近似线性增加趋势，随弹丸直径的增大总体上呈增加趋势，但在弹丸直径为 0．05mm 时出现奇异点; 饱和时间随喷射压力的增大呈缓慢减小趋势，但在弹丸直径为 0．05mm 时饱和时间与喷射压力的关系曲线出现较大的波动; 饱和时间随弹丸直径的增大呈先急剧减小后基本不变的变化趋势．

 In the investigation,with Glass beads as the strengthening medium,experiments were carried out by means of the programming solution and the orthogonal design,in which the Almen strip was repeatedly used.Then,the effects of the bead diameter,the shot pressure and the distance from the nozzle to the peened surface of the Almen strip on the Almen intensity were analyzed.Finally,the effects of the shot pressure and the bead diameter on the arc height,the Almen intensity and the saturation time were also discussed.The results show that (1) in the same peening time,the arc height increases approximately linearly with the increase of the shot pressure,and it in-creases rapidly in the former stage but rises slowly in the later stage with the increase of the bead diameter; (2) the Almen intensity increases approximately linearly with the increase of the shot pressure,and it increases with the in-crease of the shot diameter with a singular point at the bead diameter of 0.05mm; (3) the saturation time decreases slowly with the increase of the shot pressure with a larger fluctuation at the bead diameter of 0.05mm; and (4) the saturation time first decreases sharply and then almost keeps unchanged with the increase of the bead diameter.