water medium Hydraulic test methods for large liquid hydrogen tank
- Paper number
IAC-13,C2,P,6.p1,x16849
- Author
Dr. Peng Weibin, Beijing Institute of Astronautical Systems Engineering, China
- Year
2013
- Abstract
The propellant tank, which was manufactured using high-strength aluminum alloy by weld, is an important part of the large rockets. To ensure weld quality, tanks need to be verified through the water medium hydraulic test. For a large liquid hydrogen tank, due to the significantly density differences between water and liquid hydrogen, the conventional hydraulic test will cause a significant tank structure weight increase. Four hydraulic test program were analysized in this paper, such as conventional hydraulic test, setting tank horizontally, gas medium test and putting liquid hydrogen tank in a segmented container. A novel water medium segment hydraulic test method were given,whose test load distribution is consistent with the flight load, and the propellant tank structure weight caused by conventional water medium hydraulic test was reduced significantly.
- Abstract document
- Manuscript document
IAC-13,C2,P,6.p1,x16849.pdf (🔒 authorized access only).
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