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Methodology and Results of High Enthalpy Wind Tunnel and Static Demisability Tests for Existing Spacecraft Structural Joining Technologies

Fittock, Mark and Beck, James and Flinton, Alan and Gibbings, Alison and Gülhan, Ali and Liedtke, Volker and Lips, Tobias and Merrifield, James and Meyer, Jan-Christian and Proffe, Gerrit and Sauerbrey, Martin and Schleutker, Thorn and Soares, Tiago (2018) Methodology and Results of High Enthalpy Wind Tunnel and Static Demisability Tests for Existing Spacecraft Structural Joining Technologies. 69 th International Astronautical Congress, 1.-5. Oktober 2018, Bremen, Deutschland.

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Abstract

The recently introduced discipline of design-for-demise (D4D) is looking for technical solutions on different levels to promote the atmospheric demise of spacecraft and respective components in order to reduce the casualty risk on ground. Previously performed studies revealed that opening the outer satellite structure during re-entry as early as possible helps to improve the overall demise. Therefore, technologies to open and/or release external structural elements and spacecraft modules are needed. In order to get a better understanding of the behavior during re-entry of current structural joining technologies, tests have been performed in high enthalpy wind tunnel and static heat chambers. These were setup to be representative of a number of joining configurations utilized within satellite designs. Samples representing a broad range of options were prepared and tested in both chambers. An overview of test procedures and findings are presented here along with early conclusions and future activities. The samples exhibited a broad range of phenomena and it was seen that a number of different failure scenarios are possible dependent upon joining technology used along with heat flux profile and mechanical loads applied, among other influencing factors. The results from these tests will feed into the development of new demisable joining technologies for bread-boarding development and assist in designing similar tests in the near-future. These on-ground activities will help to raise the current understanding of satellite demise and the role that joining technologies play, therefore leading to more informed decisions regarding the ways to increase satellites break-up altitude in the future reducing the on-ground casualty risk.

Item URL in elib:https://elib.dlr.de/122018/
Document Type:Conference or Workshop Item (Speech)
Title:Methodology and Results of High Enthalpy Wind Tunnel and Static Demisability Tests for Existing Spacecraft Structural Joining Technologies
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Fittock, Markmark.fittock (at) ohb.deUNSPECIFIED
Beck, Jamesjames.beck (at) belstead.comUNSPECIFIED
Flinton, Alanalan.flinton (at) fluidgravity.co.ukUNSPECIFIED
Gibbings, Alisonalison.gibbings (at) ohb.deUNSPECIFIED
Gülhan, AliAli.Guelhan (at) dlr.deUNSPECIFIED
Liedtke, VolkerVolker.Liedtke (at) aac-research.atUNSPECIFIED
Lips, Tobiast.lips (at) htg-gmbh.comUNSPECIFIED
Merrifield, Jamesjim.merrifield (at) fluidgravity.co.ukUNSPECIFIED
Meyer, Jan-Christianjan-christian.meyer (at) ohb.deUNSPECIFIED
Proffe, Gerritgerrit.proffe (at) outlook.comUNSPECIFIED
Sauerbrey, Martinmartin.sauerbrey (at) invent-gmbh.deUNSPECIFIED
Schleutker, ThornThorn.Schleutker (at) dlr.dehttps://orcid.org/0000-0002-1833-2850
Soares, TiagoTiago.Soares (at) esa.intUNSPECIFIED
Date:2018
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:D4D, design for demise, breadboarding, space debris, demisability
Event Title:69 th International Astronautical Congress
Event Location:Bremen, Deutschland
Event Type:international Conference
Event Dates:1.-5. Oktober 2018
Organizer:International Astronautical Federation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Project Space Debris
Location: Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonoc and Hypersonic Technology
Deposited By: Schleutker, Thorn
Deposited On:07 Aug 2019 14:19
Last Modified:07 Aug 2019 14:19

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