Abstract: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.
潘孝斌, 倪梯闵, 谈乐斌 . 基于空气阻尼高速弹体软回收方法研究[J]. 振动与冲击, 2016, 35(17): 77-82.
PAN Xiao-bin,NI Ti-min,TAN Le-bin. Research on high speed projectile soft recovery base on air damping. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(17): 77-82.
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