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首页> 外文期刊>Journal of the American Helicopter Society >Vertical Drop Testing and Analysis of the WASP Helicopter Skid Gear
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Vertical Drop Testing and Analysis of the WASP Helicopter Skid Gear

机译：WASP直升机滑架的垂直跌落测试与分析

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摘要

Human occupant modeling and injury risk assessment have been identified as areas of research for improved prediction of rotorcraft crashworthiness within the NASA Aeronautics Subsonic Rotary Wing Program. As part of this effort, an experimental program was conducted to assess the impact performance of a skid gear for use on the WASP kit-built helicopter, which is marketed by HeloWerks, Inc., of Hampton, Virginia. Test data from a drop test at an impact velocity of 8.4 feet-per-second (fps) were used to assess a finite element model of the skid gear test article. This assessment included analytic models of anthropomorphic test devices (ATDs) developed for execution in LS-DYNA. The test article consisted of an aluminum skid gear mounted beneath a steel plate. A seating platform was attached to the upper surface of the steel plate, and two 95th percentile Hybrid III male Federal Aviation Administration (FAA)-type ATDs were seated on the platform and secured using four-point restraint systems. The goal of the test-analysis correlation is to assess the capabilities of LS-DYNA occupant models to predict vertical (or spinal) direction responses in FAA-type ATDs. By correlating ATD experimental test data for a purely vertical impact with the LS-DYNA-predicted responses, improved confidence in the use of these tools and better understanding of the limitations of the automotive-based occupant models for aerospace application can be developed.
机译：在NASA航空亚音速旋转翼计划中，人类乘员建模和伤害风险评估已被确定为改进旋翼飞机坠毁性预测的研究领域。作为这项工作的一部分，进行了一项实验计划，以评估用于WASP成套装备的直升飞机上使用的防滑齿轮的冲击性能，该直升飞机由弗吉尼亚州汉普顿的HeloWerks，Inc.销售。冲击速度为8.4英尺/秒（fps）的跌落试验的测试数据用于评估滑行齿轮试验制品的有限元模型。该评估包括拟在LS-DYNA中执行的拟人化测试设备（ATD）的分析模型。测试物品由安装在钢板下方的铝制防滑齿轮组成。在钢板的上表面安装了一个座椅平台，并在平台上安装了两个95％的混合动力III型混合动力III公ATD型ATD，并使用四点约束系统将其固定。测试分析相关性的目标是评估LS-DYNA乘员模型预测FAA型ATD中的垂直（或脊椎）方向响应的能力。通过将纯垂直冲击的ATD实验测试数据与LS-DYNA预测的响应相关联，可以开发出对使用这些工具的信心增强，并且可以更好地了解航空应用中基于汽车的乘员模型的局限性。

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