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首页> 外文期刊>Journal of Spacecraft and Rockets >Concept and Design Details of a Universal Gas-Gas Launch Escape System
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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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摘要

Human space exploration vehicles must be designed with a reliable and safe launch escape system to be activated in the event of a failure on the pad or at altitude. A safe, reliable, highly flexible, and adaptable launch escape system that can be used with most proposed commercial space capsules was conceived after conducting propulsion and configuration trade studies. The outcome of these studies is a novel gas-gas propulsion system with a tractor-configuration-based launch escape system. Preliminary design of this joint universal launch escape and assist system is detailed. It is designed to accelerate a crew capsule away from a launch vehicle in case of an emergency on the pad or during the early portions of the trajectory at up to approximately 300,000 ft of altitude. It is designed to tractor the spacecraft to a sufficient altitude and with enough downrange translation so that the parachute landing system of the capsule can safely function. During mid- and high-altitude aborts, a reentry gravity-reduction mode of this novel escape system can start and stop its high-pressure gaseous oxygen and gaseous methane engines and can direct thrust in such a way as to shape the reentry trajectory to reduce the abort reentry deceleration. Finally, it has an ascent-assist mode that can be used to offset the normal payload penalty in the event that the emergency abort function is not used.
机译：载人航天飞机的设计必须具有可靠且安全的发射逃生系统，以防在地面上或高空发生故障时启动。在进行推进和配置贸易研究之后，构想了一种安全，可靠，高度灵活和适应性强的发射逃生系统，可以与大多数建议的商业太空舱一起使用。这些研究的结果是一种新型的燃气推进系统，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。它的设计目的是在紧急情况下或在航迹的早期部分，在高达约300,000英尺的高度上，将乘员舱从运载火箭上加速离开。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，以便太空舱的降落伞着陆系统可以安全运行。在中高空堕胎期间，这种新颖的逃生系统的再入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，并可以以形成再入轨迹的方式引导推力以减小中止折返减速。最后，它具有上升辅助模式，在不使用紧急中止功能的情况下，可用于抵消正常的有效载荷损失。

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