In recent years, uncrewed aircraft systems (UASs) have greatly increased in popularity and accessibility to the public. This dramatic increase has led to a substantial risk of a midair collision between a UAS and a commercial aircraft, and these collisions need to be analyzed to understand the dangers associated with them. Soft body (i.e., birds or ice) impacts have been happening since the early days of flight and have been studied thoroughly. In contrast, there has been significantly less research on hard body impacts, with most of the currently published research not using experimentally validated models at the conditions expected to be seen in an engine ingestion. The purpose of this work is to discuss the design and execution of experiments to improve and validate a UAS model for high speed impacts for future engine ingestion studies. The overall effort consisted of first conducting physical tests that represent specific high speed ingestion scenarios. Then simulating these tests using a high fidelity finite element tool. Then finally updating the model as necessary. The design of the experiments, experimental test setup, instrumentation and experimental results are highlighted in Part I of this work. The computational model update and validation of the UAS at conditions seen in an engine ingestion are done in Part II of this work.

中文翻译：

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无人机在发动机吸入条件下的实验验证：第一部分实验

近年来，无人驾驶飞机系统（UAS）的受欢迎程度和公众的可及性大大提高。这种急剧增加导致无人机和商用飞机之间发生空中碰撞的巨大风险，需要对这些碰撞进行分析以了解与之相关的危险。自飞行早期以来，软体（即鸟类或冰）的撞击就一直在发生，并且已经得到了彻底的研究。相比之下，关于硬体影响的研究要少得多，目前发表的大多数研究都没有在发动机吸入的预期条件下使用经过实验验证的模型。这项工作的目的是讨论实验的设计和执行，以改进和验证未来发动机吸入研究的高速冲击 UAS 模型。总体工作包括首先进行代表特定高速摄取场景的物理测试。然后使用高保真度有限元工具模拟这些测试。然后最后根据需要更新模型。本工作的第一部分重点介绍了实验设计、实验测试设置、仪器和实验结果。本工作的第二部分完成了 UAS 在发动机吸入条件下的计算模型更新和验证。