航天推进技术研究院主办
[1]秦云鹏,杨旸,郑思行,等.地面辅助发射RBCC动力单级入轨飞行器参数敏感性分析[J].火箭推进,2022,48(06):9-16.
QIN Yunpeng,YANG Yang,ZHENG Sihang,et al.Parameter sensitivity analysis of RBCC powered SSTO vehicle with an auxiliary launch system[J].Journal of Rocket Propulsion,2022,48(06):9-16.
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QIN Yunpeng,YANG Yang,ZHENG Sihang,et al.Parameter sensitivity analysis of RBCC powered SSTO vehicle with an auxiliary launch system[J].Journal of Rocket Propulsion,2022,48(06):9-16.
地面辅助发射RBCC动力单级入轨飞行器参数敏感性分析
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
48
期数:
2022年06期
页码:
9-16
栏目:
目次
出版日期:
2022-12-25
- Title:
- Parameter sensitivity analysis of RBCC powered SSTO vehicle with an auxiliary launch system
- 文章编号:
- 1672-9374(2022)06-0009-08
- 分类号:
- V19
- 文献标志码:
- A
- 摘要:
- 火箭冲压组合发动机(RBCC)是火箭发动机与冲压发动机的有机融合,可有效拓展飞行器的速域和空域包线,是未来单级入轨飞行器动力的重要技术途径之一。针对当前RBCC动力单级入轨飞行器存在的结构系数低和投送效率低的问题,提出一种基于新型地面辅助发射的RBCC动力单级入轨飞行器,对该飞行器开展了上升段轨迹设计,并对其主要敏感参数的影响进行了仿真对比分析,结果显示:地面辅助发射可有效规避RBCC发动机低速段引射模态比冲低的问题,并提升单级入轨飞行器的投送效率 起飞弹道倾角、爬升等动压值对单级入轨飞行器的投送效率影响较小,而阻力影响较大 在吸气式模态工作范围,单级入轨飞行器可通过倾侧飞行实现大范围的横向机动,有效拓宽发射窗口。
- Abstract:
- Rocket-based combined cycle(RBCC)engine combines the best aspects of rocket engine and ramjet engine, which can effectively expand the speed range and height range of the flight envelope, and is the attractive candidates for future single-stage-to-orbit(SSTO)vehicles.However, the RBCC powered SSTO vehicle still shows the problems of low structure coefficient and low delivery efficiency, and an auxiliary launch system is proposed to improve its performance.In this paper, the ascending trajectory of the RBCC powered SSTO vehicle was carried out, and the effects of main factors on the trajectory were studied.The simulation results show that the auxiliary launch system on the ground is beneficial to improve the effective loads by avoiding the low specific impulse of the ejection mode during the low speed section.The launch trajectory inclination angle and iso-dynamic pressure during ascending have little effect on the delivery efficiency while the drag efficiency has a greater effect.During the air-breathing mode of the RBCC, the SSTO vehicles can gain an extending launch window via a wide lateral maneuvering.
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备注/Memo
收稿日期:2022-04-20 修回日期:2022-06-18
作者简介:秦云鹏(1989—),男,博士,高级工程师,研究领域为飞行器总体设计。
更新日期/Last Update:
1900-01-01