空间碎片超高速碰撞数值分析

Numerical analysis of space debris hypervelocity impacts

摘要: 采用光滑粒子流体动力学 (SPH) 方法对空间碎片超高速碰撞问题作了模拟分析，给出了靶孔直径和碎片云宽度随碰撞速度的变化、累积碎片分布、碎片云无量纲向前总动量随膨胀距离的变化、碎片云前端速度的变化规律以及碎片云速度矢量等。

Abstract: In this paper, space debris hypervelocity impacts are simulated by the smoothed particle hydrodynamics(SPH) method. The variations of the diameter of holes, the debris clouds width, the cumulative percentage of fragments, the dimensionless momentum, the residual velocity and the velocity vectors of debris clouds are discussed.