|Table of Contents|

Parameter sensitivity analysis of RBCC powered SSTO vehicle with an auxiliary launch system(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2022年06期
Page:
9-16
Research Field:
目次
Publishing date:

Info

Title:
Parameter sensitivity analysis of RBCC powered SSTO vehicle with an auxiliary launch system
Author(s):
QIN Yunpeng;  YANG Yang;  ZHENG Sihang;  WANG Haoliang
(Research and Development Department, China Academyof Launch Vehicle Technology, Beijing 100076, China)
Keywords:
SSTO RBCC trajectory simulation auxiliary launch system parameter sensitivity analysis
PACS:
V19
DOI:
-
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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Last Update: 1900-01-01