Analysis on the Influence Factors of Propellant Tank Stress

The propellant tank is a vital structure for the liquid rocket, and the analysis of influence factors to the propellant tank stress can provide a significant reference to design the propellant tank. Through establishing the ellipsoid cylindrical tank model, the meridian stress and hoop stress distri...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1345; no. 3; pp. 32021 - 32026
Main Authors Xin, T D, Yang, D P, Duan, Y S
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2019
Subjects
Cylinders
Cylindrical tanks
Equivalence
Hoop stress
Norms
Physics
Propellant tanks
Roofs
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Summary:The propellant tank is a vital structure for the liquid rocket, and the analysis of influence factors to the propellant tank stress can provide a significant reference to design the propellant tank. Through establishing the ellipsoid cylindrical tank model, the meridian stress and hoop stress distributions of tank roof, cylinder and bottom are analysed. And then the equivalent stress is defined based on the material strength theory. According to the parameters of a certain type tank, the equivalent stresses of tank roof, cylinder and bottom are worked out with different ellipsoidal norms, overload factors, tank radiuses and internal pressurizations, the effects of these influence factors on the tank stress are analysed, and the change laws of tank roof, cylinder and bottom equivalent stresses are determined to provide a reference for the design of propellant tank.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1345/3/032021