航天器碰撞解体碎片分析软件SFA2.0及其应用

为了实现对航天器在轨解体事件及其碎片分布特性的快速分析,中国空气动力研究与发展中心(CARDC)开发了SFA(Spacecraft Fragmentation Analysis)软件。该软件主要基于CSBM航天器解体模型开发形成,同时集成了NASA的标准解体模型。SFA软件具有解体程度分析、解体碎片生成、碎片分布统计等功能,并可以实时显示计算结果、绘制统计曲线。文章着重介绍了SFA软件2.0版的功能模块、主要算法、界面及使用方法等,并针对Iridium 33-Cosmos 2251碰撞、Solwind P78航天器解体等在轨事件进行了分析。

Spacecraft collision fragmentation analysis software SFA 2.0 and its applications

The SFA(Spacecraft Fragmentation Analysis) is a software developed by China Aerodynamics Research and Development Center (CARDC), to analyze the on-orbit collision events and to model the spacecraft breakup debris characteristics. It is mainly based on the CSBM spacecraft breakup model, integrated with the NASA standard breakup model to provide an additional choice for users. The main functions of the SFA include the breakup degree analysis, the breakup debris generation and the debris distribution statistics. The calculation results can be displayed in real time and the statistics curves can be plotted after the analysis. In this paper, the function modules, the main algorithms, the interfaces and the usages of the SFA version 2.0 are analyzed. In addition, two on-orbit collision events, namely the Iridium 33-Cosmos 2251 collision and the Solwind P78 fragmentation, are analyzed using the SFA 2.0 as examples.