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Concept and Design Details of a Universal Gas–Gas Launch Escape System

机译:通用瓦斯气体逸出系统的概念和设计细节

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Human space exploration vehiclesmust be designedwith a reliable and safe launch escape systemto be activated innthe event of a failure on the pad or at altitude.Asafe, reliable, highly flexible, and adaptable launch escape systemthatncan be used with most proposed commercial space capsules was conceived after conducting propulsion andnconfiguration trade studies. The outcome of these studies is a novel gas–gas propulsion system with a tractor-nconfiguration-based launch escape system. Preliminary design of this joint universal launch escape and assist systemnis detailed. It is designed to accelerate a crewcapsule away froma launch vehicle in case of an emergency on the pad ornduring the early portions of the trajectory at up to approximately 300,000 ft of altitude. It is designed to tractor thenspacecraft to a sufficient altitude andwith enough downrange translation so that the parachute landing systemof thencapsule can safely function. During mid- and high-altitude aborts, a reentry gravity-reduction mode of this novelnescape systemcan start and stop its high-pressure gaseous oxygen and gaseousmethane engines and can direct thrustnin such a way as to shape the reentry trajectory to reduce the abort reentry deceleration. Finally, it has an ascent-nassistmode that can be used to offset the normal payload penalty in the event that the emergency abort function is notnused.
机译:太空探索飞行器必须设计有可靠和安全的发射逃生系统,以便在飞机垫上或高空发生故障时能够被激活。构思了一种安全,可靠,高度灵活且适应性强的发射逃生系统,该系统可以与大多数建议的商业太空舱一起使用进行推进和配置贸易研究。这些研究的结果是一种新型的燃气-燃气推进系统,该系统具有基于拖拉机配置的发射逃生系统。详细介绍了这种联合通用发射逃生和辅助系统的初步设计。它的设计目的是在发生紧急情况的情况下,在高达约300,000英尺的高空撞击弹道的早期部分时,使乘员舱远离运载火箭加速。它旨在将航天器牵引到足够的高度,并具有足够的低射程平移,从而使降落伞降落系统能够安全运行。在中高空流产时,这种新型nescape系统的折返重力降低模式可以启动和停止其高压气态氧气和气态甲烷发动机,并可以引导推力,从而形成折返轨迹,以减少折返折返速度。最后,它具有一个上升-nassist模式,可以在没有紧急中止功能的情况下抵消正常的有效载荷损失。

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