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借助碎片云粒子对靶板的毁伤程度与粒子的速度成正比,与靶板的厚度成反比的理论和实验结果,提出一种用于评价航天器内部电子仪器设备遭受二次碎片粒子撞击毁伤程度的毁伤指标.针对六面体外壳的仪器设备,提出两种在航天器内部的安放姿态.通过计算这两种姿态毁伤指标的最大值,并与两个面与航天器速度垂直的安放姿态毁伤指标的最大值进行了比较,得到了当碎片粒子速度不超过航天器速度2倍时两种安放姿态毁伤指标至少分别降低9.76%和14.09%的结论.采用这两种安放姿态,既不改变仪器设备的设计,也不增加重量和体积,就能达到增强仪器设备防护性能的目的,对提高航天器在碎片环境中的生存能力具有重要意义.
Based on the theoretical and experimental results that the damage degree of debris cloud particles on the target plate is proportional to the velocity of the particles and inversely proportional to the thickness of the target plate, a method is proposed for evaluating the damage degree of the electronic device of the spacecraft subjected to secondary debris particle impact .Aiming at the hexahedron instrument and equipment, two kinds of attitude are put forward inside the spacecraft.Through calculating the maximum value of these two kinds of gesture damage indicators, and with the attitude of the two planes perpendicular to the spacecraft, The results show that when the velocity of debris particle does not exceed twice the speed of spacecraft, the damage indicators of two kinds of attitude are reduced by at least 9.76% and 14.09%, respectively.With these two attitude settings, Design, without increasing the weight and volume, can achieve the purpose of enhancing the protective performance of the instrument and equipment, and is of great significance for improving the survivability of the spacecraft in debris environment.