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Strength Experimets on Head and Cooling Channel Specimens of a Preburner  

Yoo, Jae-Han (한국항공우주연구원 발사체미래기술팀)
Moon, In-Sang (한국항공우주연구원 발사체미래기술팀)
Lee, Soo-Yong (한국항공우주연구원 발사체미래기술팀)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.15, no.2, 2011 , pp. 50-55 More about this Journal
Abstract
A preburner for the high performance, staged combustion cycle liquid rocket engine is being developed. For the structural design processes, strength experiments and finite element analyses on specimens simulating the brazing joints of the preburner, were performed and compared. Total two kinds of the specimen were manufactured for the tests. One simulated the joints between the oxygen injectors and the head junctioned by the conventional vacuum brazing. The another was made to test the brazing surfaces by vacuum compression between the combustion chamber cooling channel and the outer wall. During the burst experiments, it was observed that the fractures were occurred not at the brazed joining but in the middle of the face plate and the cooling wall. In addition, the analysis showed that the predicted fracture locations and the strains were well matched with the experiment results.
Keywords
Liquid Rocket Engine; Preburner; Head; Cooling Channel; Strength Experiment; FE Analysis;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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