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Design of a Deployable Structure for a Lunar Greenhouse Module

Vrakking, Vincent (2013) Design of a Deployable Structure for a Lunar Greenhouse Module. Master's, TU-Delft.

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Official URL: http://repository.tudelft.nl/islandora/object/uuid%3A91020a79-bb59-46ef-aafc-2878eed822e3?collection=education

Abstract

A design study was carried out at the German Aerospace Center (DLR) in Bremen, investigating the optimal structural design for a lunar greenhouse module. On account of the volume requirements of a lunar greenhouse and the volume constraints of modern launchers, the study has considered only inflatable and hybrid structures. A literature study was performed on the existing technologies and concepts of fully inflatable and partially inflatable (hybrid) space habitats and structures. Additionally, a review of the lunar environment was carried out and the impact on the lunar greenhouse module structure design was determined. Using system engineering tools, the structural requirements of the greenhouse module were defined. Concepts, such as a cylinder or semi-cylinder, were developed and assessed using an Analytical Hierarchy Process (AHP). A preliminary design of the structure was performed for the selected concept, a semi-cylinder with rigid end-caps and a flexible middle section. For the preliminary design, the gas retention properties as well as the micro-meteoroid and radiation shielding capabilities were designed and thermal and load-bearing properties of the structure were analysed. Additionally, a possible configuration of the greenhouse module interior was presented and interfaces between the rigid and flexible sections of the structure, as well as between the structure and other lunar base structures were discussed. Verification of the preliminary design calculations and the compliance with the requirements was carried out for the radiation shielding, using GEANT4, and the thermal and load-bearing structural properties, using the finite element analysis tool MSC Nastran. The final structure design is a semi-cylindrical hybrid structure with rigid end-caps, 20 m in length and with a 3 m radius and with a total mass of … kg. Radiation protection is provided by covering the structure with regolith-filled bags. A total thickness of approximately 2,5 m of regolith needs to be applied to the greenhouse to provide sufficient protection for the astronauts and plants within during the envisioned two year mission lifetime.

Item URL in elib:https://elib.dlr.de/86827/
Document Type:Thesis (Master's)
Title:Design of a Deployable Structure for a Lunar Greenhouse Module
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Vrakking, VincentUNSPECIFIEDUNSPECIFIED
Date:December 2013
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:188
Status:Published
Keywords:BLSS, Deployable structures on Moon, Greenhosue Modules
Institution:TU-Delft
Department:Aerospace Department
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Projekt :envihab
Location: Bremen
Institutes and Institutions:Institute of Space Systems > System Analysis Space Segment
Deposited By: Schubert, Daniel
Deposited On:09 Jan 2014 10:40
Last Modified:09 Jun 2016 12:08

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