火箭推进2025，Vol.51Issue(5)：13-21,9.DOI:10.3969/j.issn.1672-9374.2025.05.002
补燃循环发动机推力精度控制研究
Study on control scheme of thrust accuracy of staged combustion rocket engine
何宏疆 1管杰 2王鹏武 2郭维 2胡向龙3
作者信息
- 1. 陕西航天商业发动机有限公司,陕西 西安 710100
- 2. 西安航天动力研究所,陕西 西安 710100
- 3. 西安航天远征流体控制股份有限公司,陕西 西安 710100
- 折叠
摘要
Abstract
Thrust accuracy is an important technical index of liquid rocket engines,which has a great impact on the orbit accuracy of spacecraft.Based on the comparison of various thrust accuracy control schemes,a real-time thrust chamber pressure feedback and active closed-loop control technical scheme is proposed for a staged combustion cycle liquid rocket engine.A thrust stabilization system is built and verified through engine system simulation and hot test.The results show that the consistency between the system simulation and hot test results is high,and the thrust accuracy control scheme is feasible,which can control the thrust accuracy of the staged combustion engine within±2%in real time.However,the scheme will increase the gas temperature of the system,and the specific increase is related to the adjusted cycle.It is necessary to ensure that the high-temperature working components have sufficient temperature margin.关键词
液体火箭发动机/补燃循环/推力精度/控制方案Key words
liquid rocket engine/staged combustion cycle/thrust accuracy/control scheme引用本文复制引用
何宏疆,管杰,王鹏武,郭维,胡向龙..补燃循环发动机推力精度控制研究[J].火箭推进,2025,51(5):13-21,9.
