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NICOP-RDO (Stochastic Variable Physics SBD for High Speed Waterjet Ships)

Status: 
Ongoing
Obiettivi: 
The objective of the project is twofold. Statistical decision analysis with deterministic high-fidelity simulations are combined in order to develop: (a) efficient uncertainty quantification (UQ) procedures for the evaluation of expected value, standard deviation, and probability distribution of simulation outputs subject to stochastic inputs; (b) stochastic simulation-based design (SBD) optimization methods, to get optimal designs relatively insensible to the stochastic variation of environmental and operating conditions. UQ methods are developed in collaboration with NATO STO AVT-191 “Application of Sensitivity Analysis and Uncertainty Quantification to Military Vehicle Design” and applied to a NACA 0012 hydrofoil with variable Reynolds number and a high-speed catamaran in real ocean environment, with variable sea state and speed. A reliability-based robust design optimization (RBRDO) of the high-speed catamaran is performed for reduced resistance in wave and increased operability in ocean environment. The research is conducted in collaboration with the University of Iowa.
Organismi finanziatori: 
US Navy - Office of Naval Research
Durata prevista: 
47M
Data di inizio: 
September 2011
Copertura dei costi: 
50%
Entrate totali (INSEAN): 
205 kUSD