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Hierarchical multilevel optimization for reliability target allocation in probabilistic design of decomposed systems
Author(s) -
Kokkolaras Michael
Publication year - 2007
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200701095
Subject(s) - probabilistic logic , reliability (semiconductor) , constraint (computer aided design) , component (thermodynamics) , reliability engineering , probabilistic design , computer science , mathematical optimization , process (computing) , engineering design process , engineering , mathematics , artificial intelligence , power (physics) , mechanical engineering , physics , quantum mechanics , thermodynamics , operating system
Analytical target cascading (ATC) is a methodology for translating system‐level design targets to subsystem and component design specifications in hierarchically decomposed optimal system design problems. In previous work we extended the ATC formulation to account for uncertainties, where the bounds of the probabilistic design constraints were chosen arbitrarily and held fixed during the ATC process. In this work, we extend the probabilistic ATC formulation to include reliability targets in the vector of cascaded quantities. In this manner, we quantify the optimality‐reliability tradeoffs for each element of the decomposed system and compute the probabilistic constraint bounds required to satisfy the overall system reliability target. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)