@inproceedings{4e0267590e194936ab4cd9c7ec3a78ac,
title = "Frequency Domain Analysis of Full-Flow Staged Combustion Cycle Rocket Engine System during Startup",
abstract = "The full-flow staged combustion cycle engine, due to its advantages such as high combustion chamber pressure, high performance and high reliability, is currently one of the most promising liquid rocket engines. A state-space model of the full-flow staged combustion cycle engine system was constructed using state variables, input variables, and output variables. Response pathways of the propellant feed system to the combustion chamber pressure oscillation during the startup stage were established. The flow rate of the liquid oxygen and the oxidant-rich gas is influenced about 8-9 dB more than that of the liquid methane and the fuel-rich gas. The low-frequency resonant frequency of the combustion chamber pressure and the pre-injection pressure with respect to the inlet pressure of the methane pump and the oxygen pump are 3.8 Hz and 5.2 Hz, respectively, during the preburner ignition. The response of combustion chamber pressure reaches 49.7 dB and 54.5 dB, respectively. This study provides valuable insights for the design and development of the full-flow staged combustion cycle engine.",
keywords = "combustion chamber pressure, frequency response, pump inlet pressure, rocket engine",
author = "Chuang Zhou and Nanjia Yu and Pingping Zhu and Jue Wang and Guobiao Cai and Xuesong Guo and Shan An and Haodong He",
note = "Publisher Copyright: {\textcopyright} 2025 The Authors.; 15th International Conference on Mechanical and Aerospace Engineering, ICMAE 2024 ; Conference date: 17-07-2024 Through 20-07-2024",
year = "2025",
month = jun,
day = "16",
doi = "10.3233/ATDE250370",
language = "英语",
series = "Advances in Transdisciplinary Engineering",
publisher = "IOS Press BV",
pages = "496--506",
editor = "Pasquale Daponte",
booktitle = "Mechanical and Aerospace Engineering - Proceedings of the 15th International Conference, ICMAE 2024",
address = "荷兰",
}