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NIA Seminar by Robert Maddock |
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Date: August 15, 2005
Time: 10:30am
Location: NIA, Rm 137
Mars Advanced Studies:
Investigating the Entry, Descent and Landing Trade Space
Robert W. Maddock, Jet Propulsion Laboratory
To date, all Mars landed missions have relied very heavily on the Entry, Decent, and Landing (EDL) technology developed for the Viking program (1970's). This has often been due to limitations in resources (time and money) and in an effort to minimize mission (and development) risk. New technology developments in the EDL system have shown to be high cost and high risk, so studies and projects have focused on finding ways to fit within the current, well known, capability envelope. However, with uncertainty in the Mars Program (mission set) beyond 2009 and into the next decade, now appears to be an opportune time to fully investigate the Mars EDL trade space, including how the current performance envelope can be "stretched" as well as understanding the benefits of new techniques and technologies under consideration for development. The application of Response Surface Methodology provides a very practical means of managing the scope of an EDL trade space analysis making it possible to determine useful relationships between the large number of parameters of interest, with less time and energy than a "brute force" approach might require.
This discussion will focus on an introduction of the past and present of EDL technologies and architectures, scoping and definition of the Mars Advanced Studies EDL Trade Space, application of the Response Surface Methodology, and examples of how results from this analysis can be applied.
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