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Evidence-based preliminary design of spacecraft

Alicino, Simone and Vasile, Massimiliano (2014) Evidence-based preliminary design of spacecraft. In: 6th International Conference on Systems & Concurrent Engineering for Space Applications. SECESA 2014, 2014-10-08 - 2014-10-10.

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Abstract

This paper presents a computational tool that has been specifically developed for evidence-based robust design problems. The paper starts with a brief overview of evidence theory and its use in system design. Then a tool to reduce the computational cost of computing the Belief and Plausibility is discussed. The tool is composed of an evolutionary algorithm for worst-case scenario optimization, and a decomposition technique applicable to space systems engineering. Finally, a test case of the preliminary design of a small spacecraft will illustrate the results of the evidence-based robust design optimization in comparison to the margin approach.