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A recovery system for the key components of the first stage of a heavy launch vehicle

机译：重型运载火箭第一阶段关键部件的恢复系统

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In recent years, the space market has been pushing towards decreasing costs of launching spacecraft by reusing parts of the launchers. The purpose of this article is to present a feasibility study of a recovery system for the engine and engine frame of an existing, expendable heavy launch vehicle and present recommendations for further research.The concept developed is verified based on the Ariane 6. The recovery of the Vulcain Aft Bay (VuAB) is initialised by separation from the first stage at 157.7 km altitude while travelling at 6930 m/s. The study investigates an inflatable aeroshell for protection and deceleration during re-entry, after which it is proposed to further decelerate the VuAB using drogue parachutes. The final part of the concept entails retrieval of the VuAB by a helicopter in mid-air. To enable a controlled gliding flight during retrieval a parafoil is proposed. At launch, the recovery system will weigh 2789 kg with a payload penalty of 720 kg. The system can be integrated into the existing design of the launcher and will not interfere with nominal operations of the launcher. Implementing the recovery system can reduce the cost per launch of an Ariane 6 by 15% (C) 2020 The Authors. Published by Elsevier Masson SAS.
机译：近年来，太空市场一直在通过重用部分发射器来降低发射航天器的成本。本文的目的是针对现有的消耗性重型运载火箭的发动机和发动机框架进行回收系统的可行性研究，并提出进一步研究的建议。所开发的概念基于Ariane 6进行了验证。 Vulcain船尾湾（VuAB）是通过从第一阶段以157.7 km的高度与以6930 m / s的速度进行分离而初始化的。这项研究研究了一种可充气的航空器外壳，用于在再入飞行过程中提供保护和减速，然后提出使用伞形降落伞进一步使VuAB减速。该概念的最后一部分是由空中直升机恢复VuAB。为了在取回期间能够进行受控的滑行飞行，提出了一种翼型。发射时，回收系统将重2789千克，有效载荷损失为720千克。该系统可以集成到发射器的现有设计中，并且不会干扰发射器的正常运行。实施恢复系统可以将Ariane 6的每次发射成本降低15％（C）2020作者。由Elsevier Masson SAS发布。

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