Research on random thrust adjustable controller of rocket engine(PDF)
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
- Issue:
- 2012年02期
- Page:
- 79-83
- Research Field:
- 测控与试验
- Publishing date:
Info
- Title:
- Research on random thrust adjustable controller of rocket engine
- Author(s):
- MA Bing-bing1; ZHAI Li-ting1; SUN Lu2
- 1. Beijing Aerospace Propulsion Institute, Beijing 100076, China;
- Keywords:
- random variable thrust; fixed mixture ratio; synchronization control
- PACS:
- V434.2-34
- DOI:
- -
- Abstract:
- To meet the thrust control requirements of a liquid rocket engine, a random thrust adjustable controller based on DSP is developed. It receives random variable thrust instructions and varies the engine thrust accordingly by means of controlling the fuel and oxidant valves, while the mixture ratio is fixed. The controller showed good performances during cold-flow tests and full-duration hot firing tests. With the high stability and reliability, the controller achieved the synchronization control of variable thrust bipropellant flows in liquid rocket engine, in which the mixture ratio was precisely controlled, and swift response to random variable thrust control demand was realyzed.
Last Update: 1900-01-01