Risk-Adaptive Set-Based Design and Applications to Shaping a Hydrofoil
Abstract
The paper presents a framework for set-based design under uncertainty and demonstrates its viability through designing a super-cavitating hydrofoil of an ultrahigh speed vessel. The framework achieves designs that safely meet the requirements as quantified precisely by superquantile measures of risk (s-risk) and reduces the complexity of design under uncertainty. S-risk ensures comprehensive and decision-theoretically sound assessment of risk and permits a decoupling of parametric uncertainty and surrogate (model) uncertainty. The framework is compatible with any surrogate building technique, but we illustrate it by developing for the first time risk-adaptive surrogates that are especially tailored to s-risk. The numerical results demonstrate the framework in a complex design case requiring multifidelity simulation.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 30, 2017
- Source ID
- 10.1115/1.4037623
Entities
People
- G. Vernengo
- J. O. Royset
- L. Bonfiglio
- S. Brizzolara
Organizations
- Defense Advanced Research Projects Agency
- Massachusetts Institute of Technology
- Naval Postgraduate School