Probabilistic design optimization addresses the presence of uncertainty in design problems. Extensive studies on reliability-based design optimization, i.e., problems with random variables and probabilistic constraints, have focused on improving computational efficiency of estimating values for the probabilistic functions. In the presence of many probabilistic inequality constraints, computational costs can be reduced if probabilistic values are computed only for constraints that are known to be active or likely active. This article presents an extension of monotonicity analysis concepts from deterministic problems to probabilistic ones, based on the fact that several probability metrics are monotonic transformations. These concepts can be used to construct active set strategies that reduce the computational cost associated with handling inequality constraints, similarly to the deterministic case. Such a strategy is presented as part of a sequential linear programming algorithm along with numerical examples.
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July 2006
Research Papers
Monotonicity and Active Set Strategies in Probabilistic Design Optimization
Panos Y. Papalambros
Panos Y. Papalambros
Professor
Department of Mechanical Engineering,
University of Michigan
, G.G. Brown Bldg., Ann Arbor, MI 48109pyp@umich.edu
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Steven Skerlos
Associate Professor
Panos Y. Papalambros
Professor
Department of Mechanical Engineering,
University of Michigan
, G.G. Brown Bldg., Ann Arbor, MI 48109pyp@umich.eduJ. Mech. Des. Jul 2006, 128(4): 893-900 (8 pages)
Published Online: January 5, 2006
Article history
Received:
September 15, 2005
Revised:
January 5, 2006
Citation
Chan, K., Skerlos, S., and Papalambros, P. Y. (January 5, 2006). "Monotonicity and Active Set Strategies in Probabilistic Design Optimization." ASME. J. Mech. Des. July 2006; 128(4): 893–900. https://doi.org/10.1115/1.2202887
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