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Design of a Common Bulkhead Dome for Cryogenic Stage

Singh, YP and Tolambiya, P and Sharma, K and Yadav, P and Mohanty, SS and Singh, H and Mukti, SK and Asraff, AK (2022) Design of a Common Bulkhead Dome for Cryogenic Stage. In: 2nd International Conference on Industry 4.0 and Advanced Manufacturing, I-4AM 2022, 10 - 11 January 2022, Bangalore, pp. 61-71.

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Official URL: https://doi.org/10.1007/978-981-19-0561-2_6


Minimizing the mass and maximizing the utilization of the available space in launch vehicles have been key design objectives over the years. A cryogenic common bulkhead (CBH) tank is one of the best packaging solutions that utilize a single tank with a common bulkhead separating two independently pressurized compartments containing liquid hydrogen (LH2) at 20 K and liquid oxygen (LOX) at 77 K. A CBH tank can serve as a good replacement to the current cryogenic stage of Indian Space Research Organization’s (ISRO) launch vehicle consisting of a truss-type intertank structure. A CBH tank eliminates all the major issues currently associated and encountered with a truss-type intertank structure. A sandwich-type CBH with a thermal insulation capacity and required mechanical performance is considered. A CBH core made of the foam-filled honeycomb (FFH) was found suitable in terms of the mass and space requirement compared to the previously existing concepts of a pure foam or a pure honeycomb core. An FFH core offered a maximum mass saving of 475 kg with respect to the current GSLV MkIII configuration. Manufacturing feasibility and NDI techniques are studied for the development of a CBH dome in a CBH tank. A decoupled test setup for testing the thermal and mechanical performance of the CBH material is planned, keeping in mind the complexities of handling cryogenics. The initial test results from our recent development for the thermal setup are presented and were found satisfactory for further testing with variable conditions and environments.

Item Type: Conference Paper
Publication: Lecture Notes in Mechanical Engineering
Publisher: Springer Science and Business Media Deutschland GmbH
Additional Information: The copyright for this article belongs to the Springer Science and Business Media Deutschland GmbH.
Keywords: Cryogenics; Honeycomb structures; Launch vehicles; Liquefied gases; Nondestructive examination; Sandwich structures; Space research; Tanks (containers); Thermal insulation; Trusses, 'current; Common bulkhead; Foam filled; Foam-filled honeycomb; Honeycomb core; Intertank; Mechanical performance; Sandwich common bulkheads; Truss-type intertank, Domes
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 22 Aug 2022 09:35
Last Modified: 22 Aug 2022 09:35
URI: https://eprints.iisc.ac.in/id/eprint/76138

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