中文摘要：

运用自行研制的水下射流试验系统对自激吸气式脉冲射流装置在不同围压和靶距下的冲击特性进行了试验研究,获取了装置吸气量以及靶盘上冲击力,分析了装置射流冲击力随围压和靶距的变化规律。研究表明：下喷嘴直径对吸气量影响较大,存在一个最佳范围;随着围压的增加,同一靶距下靶盘上各圈射流冲击力均减小,不同围压下靶盘靶心和不同圈之间冲击力变化规律是不同的;对于不同的下喷嘴直径,围压越高和靶距越大,冲击力分布曲线越平缓。

英文摘要：

This paper carried out a lot of experiments on the Self-excited Inspiration Pulse Jet Device in the deepwater condition by using self-developed test equipments,obtained the inspired air capacity and the jet impact power and analyzed the effect laws with the variations of confining pressure and target distance.Studies have shown that：the inspired air capacity changed greatly as the change of the bottom nozzle diameter and there are optimal ranges;With the increase of confining pressure,each circle impact forces on target plate reduced under the same target distance.The law among the variation of impact force of bullseye and other circles under the imparity confining pressure are different;With the addition of confining pressure and target distance,impact force becomes slow down in the different bottom nozzle diameter.