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Modeling and Simulation of the Second-Generation Orion Crew Module Air Bag Landing System

机译:第二代猎户座乘员组气囊着陆系统的建模与仿真

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摘要

Air bags were evaluated as the landing attenuation system for earth landing of the Orion Crew Module (CM). An important element of the air bag system design process is proper modeling of the proposed configuration to determine if the resulting performance meets requirements. Analysis conducted to date shows that airbags are capable of providing a graceful landing of the CM in nominal and off-nominal conditions such as parachute failure, high horizontal winds, and unfavorable vehicle/ground angle combinations. The efforts presented here surround a second generation of the airbag design developed by ILC Dover, and is based on previous design, analysis, and testing efforts. In order to fully evaluate the second generation air bag design and correlate the dynamic simulations, a series of drop tests were carried out at NASA Langley's Landing and Impact Research (LandIR) facility. The tests consisted of a full-scale set of air bags attached to a full-scale test article representing the Orion Crew Module. The techniques used to collect experimental data, construct the simulations, and make comparisons to experimental data are discussed.
机译:安全气囊被评估为猎户座机组(CM)着陆的着陆衰减系统。气囊系统设计过程中的一个重要因素是对拟议配置进行正确建模,以确定最终性能是否满足要求。迄今为止进行的分析表明,在降落伞故障,高水平风和不利的车辆/地面角度组合等标称和标称条件下,安全气囊都能使CM平稳降落。本文介绍的工作围绕着ILC Dover开发的第二代安全气囊设计,并且是基于先前的设计,分析和测试工作。为了全面评估第二代安全气囊设计并关联动态模拟,在NASA Langley的着陆和撞击研究(LandIR)设施上进行了一系列跌落测试。这些测试由一套完整的安全气囊组成,该气囊附接到代表Orion Crew模块的完整测试物品上。讨论了用于收集实验数据,构建模拟以及与实验数据进行比较的技术。

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