System Level Impact of Landing Point Redesignation for High-Mass Mars Missions

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AIAA-2011-7296.pdf (574.86 KB)
Author(s)
Chua, Zarrin K.
Steinfeldt, Bradley A.
Kelly, Jenny R.
Clark, Ian G.
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Daniel Guggenheim School of Aerospace Engineering
The Daniel Guggenheim School of Aeronautics was established in 1931, with a name change in 1962 to the School of Aerospace Engineering
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https://hdl.handle.net/1853/74830
Abstract
This work presents a preliminary system level assessment of the payload mass change due to landing point redesignation of representative high-mass Mars systems (systems with entry masses greater than 20 t). An optimal propulsive descent guidance law which minimizes the control effort during the descent is used in order to assess the range of feasible landing sites as well as the mass impact on the payload of the system. It is shown that either increasing the entry mass or delaying the time of redesignating the landing site decreases the payload capability of reaching the surface as well as reduces the number of reachable landing sites. In addition, it is shown that the payloads associated with supersonic retropropulsion are more sensitive to the landing point redesignation time than systems using inflatable aerodynamic decelerators.
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Date
2011-09
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Text
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Paper
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