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EVA system for planetary exploration: conceptual design and TRL assessment
2009 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The current orbital suits, the American EMU (Extravehicular Mobility Unit), the Russian Orlan M and the planetary Apollo suits do not comply with the future planetary exploration requirements and they are not appropriate for remote operation or incompatible environments. In vision of new exploration missions a suitable planetary Extra Vehicular Activity system needs to be designed. According to the international nature of this future endeavour, ESA is starting to think about developing a European system, which could be considered as one of the European contributions to the mission. The nature of the internship was the development of an initial document, which contains a System Requirement Document for a planetary suit, a state of the art of present technologies, and a first draft of a new concept design and a Technology Readiness Level assessment of the present European technology. The project was tackled with a literature review of the past and current EVA systems and a research on alternative technologies that are applied to the field, giving a deep insight on the matter and therefore realising the benefits and limitations of existing spacesuits, setting the basis for further exploitation of existing and future technologies. The main part is the identification of the requirements for specific task definitions and operational scenarios for a Moon planetary mission. Planetary missions are very different from orbital EVA (gravity, mobility issues, dust, vast operation areas, etc) and given the high cost and associated risks of sending humans to destinations so far away will require adequate protection and a high mission success rate. A variety of systems were analysed in order to evaluate the most suitable solution for the proposed scenarios, leading to the formulation of a concept design that was then presented for a feasibility study. This includes new solutions and technologies that are being developed for the various subsystems. The Final part is a Technology Readiness Assessment [TRA] of the current European industry for the development of an EVA system, and a correspondent roadmap that gives an indication of the duration and efforts that will characterise the developing process.

Place, publisher, year, edition, pages
Keyword [en]
Technology, EVA system, space suit, planetary exploration, EVA, technology, European Industry TRL
Keyword [sv]
URN: urn:nbn:se:ltu:diva-54386ISRN: LTU-PB-EX--09/118--SELocal ID: b578f40b-d3fa-4bf1-a419-7f61de1fc6a6OAI: diva2:1027767
Subject / course
Student thesis, at least 30 credits
Educational program
Space Engineering, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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