现代智能弹药中的末端敏感、制导装置及引信主要由精密光机电、微处理器和电源等部件组成，对其进行高过载试验是研究弹炮适应性、弹道联动特性的重要手段。为了使经历高过载后的高速弹体能在有限距离内截停且无损回收，对软回收方法进行了理论分析和试验研究。利用高速弹体在同口径回收管内压缩弹前空气产生运动阻尼，采用单级破膜的方法，缓冲吸收弹体动能并释放能量。采用一维定截面非定常无粘流动描述压缩气室气体流动状态，结合弹体运动方程建立了软回收过程数学模型，采用带有人工粘性项的二阶MacCormark格式和经典四阶Runge-Kutta法进行数值求解，分析了弹体初速、气室初压和破膜压力之间的匹配关系，为试验开展提供必要指导依据。通过试验，可实现对质量36kg、最大初速为548m/s的弹体在42m距离内进行软回收。

In modern intelligent ammunition, terminal sensitive unit, guidance device and fuze are mainly composed of precision micro optical electro-mechanical systems, microprocessor, power, etc. High overload experiment with these components is an important method to study artillery and ammunition suitability and ballistic linkage characteristics. For stopping a high speed projectile, which experience over 10000g acceleration inside the barrel, under limited distance and without damage, the soft recovery method is studied by theoretical analysis and experiments. By compressing air ahead the projectile in the same caliber recovery tube with single stage diaphragm, the kinetic energy is absorbed and released. The compressed chamber is described by one dimension constant section unsteady inviscid flow equation. And combined with the projectile dynamic equation, the mathematic model of the soft recovery system is set up. Second order MacComark scheme with artificial viscosity and four order Runge-Kutta method are applied to program code and numerical simulation. The matching relationship of initial velocity, chamber initial pressure and diaphragm rupture pressure is analyzed. With the proposed method, experiment results show that the soft recovery system can catch the 155mm projectile, 36kg, fired at 548m/s, within 42m successfully.