Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Mars Sample Return"”.
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An Approach to Fault Management Design for the Proposed Mars Sample Return EDL and Ascent Phase Architectures
The Mars Sample Return (MSR) campaign aims to bring Martian regolith samples back to Earth. JPL is currently developing the Sample Retrieval Lander (SRL) to receive the samples collected by the Perseverance rover and launch them into Mars orbit using a Mars Ascent Vehicle (MAV) for future Earth …
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Failure detection, isolation and mitigation for a spacecraft solid fuel reaction control system
… redundancy to failure. One such mission is the Mars Sample Return, intended to return a sample of Martian soil, rock and atmosphere to Earth for greater study. A key element of the Mars Sample Return mission is the Mars Ascent Vehicle, which is designed to carry the sample container from the …
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New Mineralogical and Geochemical Characterization of Martian Meteorites: Implications for Habitability and Astrobiological Exploration of Mars
Mars is thought to have shared many similarities with the Earth during its history, leading to extensive research into the potential for life to arise on Mars. Here, a thorough mineralogical and geochemical characterization of primary and secondary phases in Martian meteorites Los Angeles, Zagami, …
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Development of legged, wheeled, and hybrid rover mobility models to facilitate planetary surface exploration mission analysis
This work discusses the Mars Surface Exploration (MSE) tool and its adaptation to model rovers featuring legged, wheeled, and hybrid mobility. MSE is a MATLAB based systems engineering tool that is capable of rapidly designing a large trade space of rovers to fulfill a user defined science mission. …
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Magnetohydrodynamic energy generation and flow control for planetary entry vehicles
Proposed missions such as a Mars sample return mission and a human mission to Mars require landed payload masses in excess of any previous Mars mission. Whether human or robotic, these missions present numerous engineering challenges due to their increased mass and complexity. To overcome these …
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A Monte-Carlo performance analysis of Kalman filter and targeting algorithms for autonomous orbital rendezvous
Autonomous orbital rendezvous with an orbiting sample (OS) is seen as an enabling technology for a Mars Sample Return (MSR) mission, so several demonstrations have been planned. With CNES cooperation a proposed rendezvous demonstration was governed by ITAR restrictions, and a guidance and …
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Probing the role of clay minerals in the preservation of organics and soft tissues
… Fe-rich clay and amorphous phases will be sampled for return by the Mars Sample Return Campaign to search for preserved organics; however, the ability of these clay and amorphous phases to preserve organic carbon has yet to be tested. In this thesis, I seek to create a more thorough …
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A framework for space systems architecting under stakeholder objectives ambiguity
… three case studies: the assessment of a robotic Mars Sample Return Campaign, the study of in-space transportation infrastructure for future human space exploration beyond Low Earth Orbit, and the retrospective analysis of satellite constellations for commercial applications. The application of …
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Evaluation of multi-vehicle architectures for the exploration of planetary bodies in the Solar System
… Jovian moon Europa and another on the ascent and return components of a Mars Sample Return mission. From these, distributed systems are shown to provide increased science return and robustness as well as lower development and manufacturing costs as compared to their monolithic equivalents.
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Organic influences on hydrated magnesium carbonate mineral formation
… in Jezero Crater are an important target of the Mars Sample Return Mission. The presence of hydrated magnesium carbonates in the deposits suggests that these minerals experienced minimal postdepositional alteration and may have the potential to preserve biosignatures from a habitable early …
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A vision based control system for autonomous rendezvous and capture of a Mars Orbital Sample
NASA's Mars Sample Return (MSR) mission involves many challenging operations. The current mission scenario utilizes a small Orbiting Sample (OS) satellite, launched from the surface of Mars, which will rendezvous with an Earth Return Vehicle (ERV) in Martian orbit. One of the highest-risk …
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Impact Characterization of Earth Entry Vehicle for Terminal Landing (on Soil)
In order to more accurately predict loads subjected to the EEV (Earth Entry Vehicle) upon impact with a variety of materials, finite element simulations of soil/EEV impact were created using the program LS-DYNA. Various modeling techniques were analyzed for accuracy through comparison with physical …