MIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Metrics for Evaluating Survivability in Dynamic Multi-Attribute Tradespace Exploration

Author(s)
Hastings, Daniel E.; Richards, Matthew G.; Shah, Nirav B.; Ross, Adam Michael
Thumbnail
DownloadMain article (12.05Mb)
OPEN_ACCESS_POLICY

Open Access Policy

Creative Commons Attribution-Noncommercial-Share Alike

Terms of use
Attribution-Noncommercial-Share Alike 3.0 Unported http://creativecommons.org/licenses/by-nc-sa/3.0/
Metadata
Show full item record
Abstract
Survivability engineering is critical for minimizing the impact of disturbances to the operation of space systems. To improve the evaluation of survivability during conceptual design, metrics are proposed for the assessment of survivability as a dynamic, continuous, and path-dependent system property. Two of these metrics, time-weighted average utility loss and threshold availability, are then incorporated into a tradespace study on the survivability of future space tug vehicles to orbital debris. A value-based design approach, dynamic multi-attribute tradespace exploration, is taken to evaluate survivability based on the relationship between stochastic space tug utility trajectories and changing stakeholder expectations across nominal and disturbed environmental states. Results of the tradespace study show that moderate levels of bumper shielding and access to an on-orbit servicing infrastructure benefit space tugs with large exposed cross-sectional areas, whereas active collision avoidance only delivers value to extremely-risk-averse decision-makers. Time-weighted average utility loss and threshold availability are found to be discriminating metrics for navigating survivability tradespaces of thousands of design alternatives.
Date issued
2009-09
URI
http://hdl.handle.net/1721.1/60341
Department
Massachusetts Institute of Technology. Engineering Systems Division
Journal
Journal of Spacecraft and Rockets
Publisher
American Institute of Aeronautics and Astronautics
Citation
Richards, Matthew G., Adam M. Ross, Nirav B. Shah, Daniel E. Hastings "Metrics for Evaluating Survivability in Dynamic Multi-Attribute Tradespace Exploration." Journal of Spacecraft and Rockets 2009 vol.46 no.5:p. 1049-1064.
Version: Author's final manuscript
ISSN
0022-4650

Collections
  • MIT Open Access Articles

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries
PrivacyPermissionsAccessibilityContact us
MIT
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.