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Keywords: optimization
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Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 29–October 2, 2020
Paper Number: SNAME-SMC-2020-084
... Hydrofoils have the advantages of operating at high speeds with good seakeeping characteristics. Hydrofoils have regained popularity recently thanks to advances in material science, manufacturing, sensing, and control. In this paper, we present hydrodynamic optimizations of a T-foil using a high...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 24–28, 2017
Paper Number: SNAME-SMC-2017-029
..., and weld sequence optimization algorithms. The end goal is improved confidence in, and use of, computational weld mechanics (CWM) techniques to more cost-effectively serve the U.S. Navy enterprise. KEY WORDS Finite-element analysis (FEA); welding; distortion; computational weld mechanics (CWM...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 24–28, 2017
Paper Number: SNAME-SMC-2017-051
... with operational and engineering design. This paper focuses on the processes used to analyze the feasibility of new ship channel concepts and identify key areas for dredging. Furthermore, it shown tools which are available to obtain a efficient dredger design. KEY WORDS: Dredging, hull optimization...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 24–28, 2017
Paper Number: SNAME-SMC-2017-066
... original design strength optimization problem equilibrium path optimum design ultimate strength finite difference step size constraint li structural optimization algorithm approximate method artificial intelligence structural optimization ultimate strength analysis design variable...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 24–28, 2017
Paper Number: SNAME-SMC-2017-081
... diagnostic solution optimization ship installation intelligent ship operation artificial intelligence onboard remote diagnostic service monitoring infrastructure maintenance rd system Remote Diagnostic Services As Enablers For Intelligent Shipping Matko Barisic1 (V), Yago Martinez Parrondo1...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 24–28, 2017
Paper Number: SNAME-SMC-2017-103
... We construct a multi-fidelity framework for statistical learning and global optimization that is capable of effectively synthesizing low- and high-fidelity simulations towards identifying optimal SWATH hull shapes with superior seakeeping performance. Specifically, we employ multi-fidelity...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 24–28, 2017
Paper Number: SNAME-SMC-2017-105
... of the deck plate structures during services. To select an optimized welding sequence that minimizes weld-induced residual stress in the welded joint, an integrated computational materials engineering (ICME) approach was used to evaluate the effect of welding sequences on residual stress...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, November 1–5, 2016
Paper Number: SNAME-SMC-2016-047
... With the advent of new naval ship types, interest in reducing the structural weight and lowering vertical center of gravity (VCG) while meeting military safety requirements has increased dramatically in recent years. Ship structural optimization is usually a mixed discrete continuous design...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, November 1–5, 2016
Paper Number: SNAME-SMC-2016-042
... independent computer programs can be combined by users to perform an optimization - something not possible with traditional program design that ties one user interface with one set of calculations. data definition interface framework text file sname user interface framework opencalc system...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, November 1–5, 2016
Paper Number: SNAME-SMC-2016-128
... Dynamics (CFD) predicts the propeller off-axes forces during a maneuver, and a Fluid/Structures Interaction (FSI) model predicts the resulting shaft stresses and deflections. Bearing forces and moments derive from CFD models of the oil film inside each stern tube bearing. Optimization finds the combination...

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