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Keywords: prediction
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Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 14–16, 2024
Paper Number: SNAME-SMC-2024-048
... of the thousands of calculations are used to quantify the capsize risk, for example. The challenge to validate the capsize risk is that an occurrence of capsizing is the result of a chain of (hydrodynamic) events, each of which needs validation. To validate prediction of rare events, we claim validation on many...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 14–16, 2024
Paper Number: SNAME-SMC-2024-052
... used to correct distortion, prediction of heating paths for thermally forming curved shell plates, and optimization of the welding process and structure design to improve toughness and fatigue life. Although the ORNL solver have achieved significant successes in modeling the welding process...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 27–29, 2023
Paper Number: SNAME-SMC-2023-019
... of system delays, phase lag can be mitigated. marine transportation united states government deep learning neural network artificial intelligence machine learning controller t-foil simulation prediction ride control algorithm neural network smc 2023 actuation effectiveness reduction...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 27–29, 2022
Paper Number: SNAME-SMC-2022-080
... varied independently and validated using experimental data. The URANSE CFD simulations were validated by comparison with the experimental results and unsteady thin-ship resistance predictions of Doctors et al. (2010). The numerical results show reasonable agreement with rowing shells experimental data...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 27–29, 2022
Paper Number: SNAME-SMC-2022-065
... is on building and testing machine learning models that can accurately predict the shaft power of a vessel under different conditions. The models examined include pure empirical models, pure neural network models, and combinations of the two. Using data on two car carrying vessels for 8 years it was found...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 27–29, 2022
Paper Number: SNAME-SMC-2022-116
... of possible classes. deep learning sea ice characterization artificial intelligence machine learning convolutional neural network smc 2022 matthew king segmentation dataset prediction houston ensemble architecture classification validation pixel semantic segmentation SNAME Maritime...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 27–29, 2022
Paper Number: SNAME-SMC-2022-003
... Quiescent Period Prediction (QPP) purpose is to provide ship motion conditions and motion predictions with sufficient forecasted time to launch, recover, and complete other motion sensitive tasks regardless of the seaway. QPP operates within a federated architecture system containing measurement...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 27–29, 2021
Paper Number: SNAME-SMC-2021-132
... CFD is a useful tool for ship designers looking for accurate predictions of the fuel efficiency achieved by a certain combination of hull, propeller and Energy Saving Devices (ESDs). Such predictions are key to meeting ever-increasing demands for reductions in emissions. However, CFD simulations...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 27–29, 2021
Paper Number: SNAME-SMC-2021-048
... and never-ending stream of data. The author has applied the concept of continual learning to building a system that continually learns from actual boat performance and refines predictions previously done using static VPP data. The neural networks used are initially trained using the output from traditional...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 27–29, 2021
Paper Number: SNAME-SMC-2021-082
..., wave period, wave direction, etc., are screened from the buoy measurements to build a predictive model based on multiple linear regression for significant wave height prediction. A sensitivity analysis is then conducted for the available weather window corresponding to specified threshold operational...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 29–October 2, 2020
Paper Number: SNAME-SMC-2020-089
... Accurate estimation of the added resistance and added power of a ship in waves is essential to ensure efficient and safe operations at sea. The objectives of this work are to (1) present an efficient means of predicting the added resistance and added power of the KRISO Container Ship (KCS...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 29–October 2, 2020
Paper Number: SNAME-SMC-2020-068
... The main purpose of this work is the development of the wave reconstruction and prediction system RIMARC for forecasting of waves and vessel motion in real time a few minutes in advance. RIMARC (Radar IMAge ReConstruction and wave prediction) utilises ocean surface measurements from a standard X...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 29–October 2, 2020
Paper Number: SNAME-SMC-2020-026
... This paper proposes a methodology for vessel-specific wave induced fatigue damage estimation and prediction based on Spectral-Based Fatigue Analysis (SFA) and Monte Carlo simulation (MCS). The impact of the vessel-specific wave conditions on the vessel’s fatigue damage is characterized...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, September 29–October 2, 2020
Paper Number: SNAME-SMC-2020-039
... underwater radiated noise, are continuing to be tightened by regulatory institutions. This development is urging the shipbuilding industry to improve sound prediction and analysis methods. With the propeller as the dominating acoustic source under water, in particular propulsion solution manufacturers need...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-010
... maneuvering calm water rudder profile loading condition simulation technical university marine transportation coefficient papanikolaou prediction adverse weather condition ship weather condition environmental condition accident maneuverability Simulation of ship's maneuvering under...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-003
... Ship design and operational planning require methods for predicting ship maneuvering including wave-induced motions. Rapid evaluation of ship motions is presented here by extending a potential flow seakeeping model to include hull maneuvering force coefficients, which include viscous effects...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-093
.... To address these requirements, the CRS has been working since 2011 on a new time domain simulation tool able to predict the ship's sustained speed, track and drift angle in wind and wave conditions with sufficient accuracy. Due to the difficulty in accurately combining the wave frequency forces...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-079
... monohull trimaran design performance weidle smc simulation arrangement prediction cross deck maneuvering baseline hull Trimaran Design and Performance Author names: William S. Weidle1 (M), Keisuke Suzuki2 (V), Yoshiki Miyauchi2 (V), Parker L. Field1 (M), James W. Lovenbury1 (V) 1. Naval Surface...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-064
... In order to safely design submarines and other underwater vehicles, it is critically important to understand and be able to predict the hydrodynamics forces and moments they will experience in operation. Most methods of predictnig the hydrodynamic forces during maneuvering assume the flow...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-042
...); Howison et al. (1991). The hydrodynamic models are coupled to a linear finite element beam model through a relationship between spray root location and the local deflection. Results of a validation study comparing model predictions to experiments described in Ren et al. (2019a); Javaherian et al. (2019...

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