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Towards Risk Based Design (RBD) of Space Exploration Missions: A Review of RBD Practice and Research Trends at NASA

[+] Author Affiliations
Irem Tumer, Francesca Barrientos, Ali Farhang Mehr

NASA Ames Research Center, Moffett Field, CA

Paper No. DETC2005-85100, pp. 687-695; 9 pages
doi:10.1115/DETC2005-85100
From:
  • ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 4c: 18th Reliability, Stress Analysis, and Failure Prevention Conference
  • Long Beach, California, USA, September 24–28, 2005
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4741-1 | eISBN: 0-7918-3766-1
  • Copyright © 2005 by ASME

abstract

This paper describes the concept of Risk Based Design in the context of NASA’s low volume, high cost missions. The issue of accounting for risk in the design lifecycle has been heavily discussed in the literature under several research topics, including: reliability, risk and uncertainty analysis, optimization, decision-based design and robust design. Due to the risky nature of space missions, NASA centers have adopted a variety of techniques—developing tools, procedures, and guidelines to mitigate risk. Most of these techniques, however, require significant amounts of detailed and possibly quantitative information, making them inapplicable to early stages of design, where the requirements and models are vague, decisions are tentative and probabilities are unknown. This survey paper first presents a brief description of a design environment at NASA as well as current risk-based design practices and methods. Then, a summary of the topics from the NASA’s Risk Management Conference is presented, followed by current research efforts within NASA to account for risk in early stage design. The purpose of this paper is provide a survey of NASA’s capabilities (or lack thereof) in accounting for risk in the early design phase. This work lays the foundation for more effective collaborations between NASA researchers and the academic research community.

Copyright © 2005 by ASME
Topics: Design

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