Global ETD Search
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Showing 1 to 7 of 7 for “"Entry, descent, and landing (EDL)"”.
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Development, Verification, and Future Applications of a 3-DoF Entry and Descent Simulation Tool
… effects must be accounted for in some fashion, and often lead to mission elements being centered around gathering information on the unknown.</p> <p>It is the purpose of this research to develop and test a tool for simulation of entry, descent, and landing, (EDL) and to present a brief analysis …
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A systems and cost analysis of human rated Mars entry, descent, and landing vehicles
… until after the preliminary vehicle and mission concepts have been designed. Once costs have been estimated, managers and project teams often lack confidence that the final cost of the mission will match the preliminary estimates. The present work provides a robust methodology for …
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Optimal lift and drag modulation hypersonic control options for high ballistic coefficient entry vehicles at Mars
Future Mars entry, descent, and landing (EDL) missions will require larger mass vehicles and payloads, especially if humans are to land on the surface. Current Mars EDL technology relies heavily on Viking-era supersonic parachutes that are approaching their landed mass limits; however, supersonic …
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Entry, descent and landing vehicle design space exploration for crewed Mars missions
… of at least an order of magnitude in the landed mass performance of entry, descent and landing (EDL) vehicles compared to previous successful robotic missions and ones currently planned for the near future. The work presented in this thesis attempts to look at the effect of individual …
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Morphing Hypersonic Inflatable Aerodynamic Decelerator (HIAD) Mechanisms and Controls
To enable a crewed mission to Mars, precision landing capabilities of Entry, Descent, and Landing (EDL) systems must be improved. The need for larger payloads, higher landing sites, and controllability has motivated the National Aeronautics and Space Administration (NASA) to invest in new …
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Hypersonic flight strategies for supersonic retropropulsion at Mars
… Mars surface exploration missions require landed masses beyond the capability of current entry, descent, and landing technology. High-mass missions will likely use supersonic retropropulsion to increase landed mass, a paradigm shift from current supersonic parachute systems. This work …
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Performance assessment of Mars entry systems with flap-based trajectory control
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-14 without embargo terms