Reliability-based robust design optimization for ships in real ocean environment (Contributo in atti di convegno)

Type

• Contributo in atti di convegno (Classe)
• Prodotto della ricerca (Classe)

Label

• Reliability-based robust design optimization for ships in real ocean environment (Contributo in atti di convegno) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

Alternative label

• M. Diez, X. Chen, E.F. Campana, F. Stern (2013)
  Reliability-based robust design optimization for ships in real ocean environment
  in 12th International Conference on Fast Sea Transportation, FAST2013, Amsterdam, The Netherlands, Amsterdam, 2-5 December 2013
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• M. Diez, X. Chen, E.F. Campana, F. Stern (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• CNR-INSEAN, Rome, Italy The University of Iowa, Iowa City, IA, US (literal)

Titolo

• Reliability-based robust design optimization for ships in real ocean environment (literal)

Abstract

• A reliability-based robust design optimization for resistance reduction and operability increase in head waves from a real ocean environment is formulated and solved. The analysis tool consists in a URANS solver coupled with uncertainty quantification methods for variable regular wave, based on a Monte Carlo simulation with metamodels. The design optimization methods include the Karhunen-Loe?ve expansion of the geometry modification space, coupled with design of experiments and metamodels, and a multi-objective particle swarm optimization algorithm. To reduce the computational effort, a simplified model is introduced for the effects of sea state and speed on the subsystem's seakeeping responses. The application presented is a 100m Delft catamaran sailing in the North Pacific Ocean, with speed in the range Fr = 0.115 ÷ 0.575. An optimal design is selected, providing a 2.8% reduction for the expected value of the mean resistance and an 8.5% increase in operability, based on stochastic operations. (literal)

Prodotto di

• Ottimizzazione dei veicoli marini (ET.P02.017.002) (Modulo)

Autore CNR

• MATTEO DIEZ (Unità di personale interno)
• EMILIO FORTUNATO CAMPANA (Unità di personale interno)

Incoming links:

Autore CNR di

• EMILIO FORTUNATO CAMPANA (Unità di personale interno)
• MATTEO DIEZ (Unità di personale interno)

Prodotto

• Ottimizzazione dei veicoli marini (ET.P02.017.002) (Modulo)