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BIGGER FRAGMENTS BIGGER PICTURE - CHARACTERIZING DEBRISAT FRAGMENTS

机译:更大的碎片更大的图片 - 表征碎片碎片

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The DebriSat project was conceived to provide NASA and the DoD with an updated dataset to improve existing breakup models. One of the key sets of parameters used in the break-up models is the fragment's physical characteristics including its characteristic length, average cross-sectional area, volume, and area-to-mass ratio. The DebriSat test article was engineered to obtain these parameters with components, materials, and processes commonly utilized in modern LEO satellites and subjected to a laboratory hypervelocity impact (HVI) test to emulate a catastrophic on-orbit collision. In the post-HVI phase, all fragments with at least one linear dimension greater than or equal to 2 mm are carefully collected, characterized, and recorded into the Debris Categorization System database. After five years of processing fragments from the laboratory HVI test, over 203,000 fragments have been collected to date, comparatively higher than the 85,000 fragments predicted by the current break-up model. Of the collected fragments, approximately 30% have been characterized to date.
机译:德布拉索特项目被设想为NASA和DOD提供更新的数据集以改善现有的分发模型。分类模型中使用的一个关键参数集之一是片段的物理特性,包括其特征长度,平均横截面积,体积和面积质量比。设计的碎屑试验文章以在现代狮子座卫星中通常使用的部件,材料和过程中获得这些参数,并经受实验室超胶质抗冲击(HVI)测试以模拟灾难性的轨道碰撞。在后HVI阶段,仔细收集具有大于或等于2mm的至少一个线性尺寸的所有片段,其特征在于,并记录到碎片分类系统数据库中。在从实验室HVI试验中处理五年后,已收集超过203,000个碎片,迄今为止,比目前分手模型预测的85,000片段相对高。在收集的碎片中,约30%的特征在于迄今为止。

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