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Evaluation of Acceleration Response during AFRL +G_z Vertical Deceleration Tower Tests

机译：AFRL + G_z垂直减速塔测试期间的加速度响应评估

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An analysis and comparison of impact acceleration responses in male and female pilot subjects is presented. This study is motivated by the increasing number of gender-related laboratory tests to determine if males and females respond differently to the high impact accelerations simulating in-flight ejection from military aircraft. Acceleration response data are analyzed and compared using vertical drop tower tests from Study No. 199906 conducted by the Air Force Research Laboratory (AFRL) at Wright-Patterson Air Force Base, Ohio. Acceleration time histories at the seat pan, T1 (1st thoracic vertebra), head and chest, were recorded for +Z axis impact accelerations of 6, 8 and 10 G's. The results demonstrate that males and females respond similarly to ejection-like impacts. The greatest percent difference in peak acceleration response between male and female subjects in the 10 G test occurs in the chest at 9.2%, followed by the T1 and head at 8.1% and 4.8%, respectively. All differences have p-values of ≤ 0.05. With uncertainty, however, the difference between male and female values might not exceed 4% at any location. Smaller differences between genders are found in the time-of-peak (≤ 2.5%). Minimal correlation is found between mass or sitting height with the magnitude of peak acceleration or time-of-peak. All correlations are r ≤ 0.26. A stronger correlation of r = 0.84 is found between subject mass and sitting height for all subjects. This independent study of the AFRL data confirms many previous conclusions while establishing additional insights into this unique set of experimental data.
机译：进行了分析和比较的男性和女性飞行员受试者的冲击加速反应。这项研究的动机是越来越多的与性别有关的实验室测试，以确定男性和女性对模拟军用飞机空中飞行的高冲击加速度的反应是否不同。使用来自俄亥俄州怀特-帕特森空军基地的空军研究实验室（AFRL）进行的研究编号199906的垂直落塔测试对加速度响应数据进行了分析和比较。对于+ Z轴碰撞加速度分别为6、8和10 G's，记录了座盘T1（第一胸椎），头部和胸部的加速时间历史。结果表明，男性和女性对弹射样撞击的反应相似。在10 G测试中，男性和女性受试者之间峰值加速度响应的最大百分比差异出现在胸部，分别为9.2％和T1和头部，分别为8.1％和4.8％。所有差异的p值均≤0.05。但是，由于存在不确定性，在任何位置，男性和女性之间的差异可能不会超过4％。在高峰时间发现性别差异较小（≤​​2.5％）。在质量或坐姿高度与峰值加速度或峰值时间之间发现最小的相关性。所有相关系数均为r≤0.26。在所有受试者的受试者质量和坐姿之间发现r = 0.84的更强相关性。对AFRL数据的这项独立研究证实了许多先前的结论，同时建立了对这一独特实验数据集的更多见解。

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