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A5ME – EIT – Tank Test Procedure Documentation for Determination of the LH2 Tank Compartment with Natural Damping at 1g

Darkow, Nicolas (2012) A5ME – EIT – Tank Test Procedure Documentation for Determination of the LH2 Tank Compartment with Natural Damping at 1g. Project Report. RYTA-ECSP-TRR-00, 36 S. (Unpublished)

Full text not available from this repository.

Abstract

For the upper stage of the future version of the Ariane 5, the A5ME, it is important to know the motion of the liquids inside it. One essential motion to understand is the sloshing process. Each spacecraft maneuver leads not only to desired accelerations, there are also accelerations, introduced within the liquids on-board the spacecraft. Due to these forces the liquids are able to start sloshing inside the propellant tanks. The natural damping ratio of sloshing inside the propellant tanks is then an important aspect to understand. Considering that sloshing is feasible at all mission phases, the behavior of the propellant for different fill levels is interesting. Furthermore the sloshing behavior with anti-sloshing devices could be investigated. With the knowledge of the sloshing behavior for each mission phase, it would be possible to optimize maneuvers, so that there are fewer disturbances for the propellant’s free surface and thus fewer self-induced instabilities. In order to further the understanding of this topic DLR Bremen provides, in cooperation with EuroCryospace, tests for sloshing with different fill levels.

Item URL in elib:https://elib.dlr.de/105007/
Document Type:Monograph (Project Report)
Title:A5ME – EIT – Tank Test Procedure Documentation for Determination of the LH2 Tank Compartment with Natural Damping at 1g
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Darkow, NicolasNicolas.Darkow (at) dlr.deUNSPECIFIED
Date:21 June 2012
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:36
Status:Unpublished
Keywords:sloshing, damping, A5ME, LH2
Institution:DLR Bremen
Department:RY-TAS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Transport and Propulsion System
Deposited By: Behnke, Manuela
Deposited On:03 Aug 2016 09:57
Last Modified:03 Aug 2016 09:57

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