The real space debris normally has many kinds of shapes such as sphere, cylinder or cuboid, rather than a single shape, and different debris shapes result in completely different debris cloud characteristics.Characteristics of debris cloud such as shape, mass and velocity distribution directly determine the ability of debris cloud penetrating the on-orbit spacecraft bulkhead and its potential threat.Considering the factors such as the projectile size and shape, this paper numerically simulates and analyzes the influence of projectile shape effect on debris cloud distribution characteristics.The results show that under the same initial impact conditions, the debris cloud shape, the number of pieces of debris and their distribution are influenced significantly by the projectile geometric dimensions.With the same initial kinetic energy, the ability of the debris cloud penetrating the bulkhead with the same projectile shape increases as the projectile size increases; with the same impact velocity, the potential threat of cylinder projectile with the same mass to the bulkhead is influenced significantly by the slenderness ratio; and with the same impact velocity and comparable slenderness ratio, the debris cloud of tri-prism projectile has a larger mass, higher velocity and dispersed distribution, resulting in significant influence on the damaged range and degree of the bulkhead.
PENG Yun
,
DENG Yong-jun
,
LIU Xiao-ling
,
YAO Yong
,
HUANG Jie
. Influence of Projectile Shape Effect on Debris Cloud Distribution Characteristics Under Normal Hypervelocity Impact[J]. Journal of Space Science and Experiment, 2022
, 22(4)
: 35
-48
.
DOI: 10.19963/j.cnki.2096-4099.2022.04.005
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