对OSIRIS-REx样本返回囊高超音速重新进入的超声波源分析
Jordan W Bishop1, Philip Blom1, Chris Carr1
1Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
The Journal of the Acoustical Society of America
|December 12, 2025
概括
这是OSIRIS-REx任务.
科学领域:
- 声学 声学 声学 声学
- 航空航天工程 航空航天工程
- 行星科学 行星科学
背景情况:
- 太空的高超音速重新进入为研究声波爆炸现象提供了独特的机会.
- 欧西里斯-雷克斯任务为大气再入分析提供了明确的弹子尺寸.
- 了解声波爆发源对于设计未来的样本返回任务至关重要.
研究的目的:
- 测试和验证不同的声波爆发源模型,使用来自OSIRIS-REx囊大气再进入的数据.
- 为了估计在重新进入过程中产生的超声波信号的发射位置.
- 为了比较各种声波爆炸理论的预测准确度与记录的声学数据.
主要方法:
- 部署六个超声波麦克风,在重新进入过程中记录信号.
- 使用几何声学近似与各种大气配置来估计信号发射位置.
- 使用惠瑟姆理论,卡尔森方法和拖拉主导的超音速模型,分析声压和信号持续时间.
- 使用隐形汉堡方程解答器进行传播建模.
主要成果:
- 沿着预测的飞行路径估计的排放位置与相关的不确定性.
- 将三种声波爆发模型的预测与记录的超声波数据进行了比较.
- 确定了拖动主导的源模型,当与不透明的汉堡方程相结合时,为观察到的数据提供了出色的匹配.
结论:
- 拖动主导的源模型显示了高保真度来预测超音速重新进入的声波爆发.
- 来自OSIRIS-REx再入地的超声波数据验证了大气声学传播模型.
- 这些发现将有助于未来的样本返回任务规划,并提高对高空超声波源的理解.
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