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Keywords: prediction
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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, 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, 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-2020-068
... 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-2020-089
... 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-2020-039
... 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-2019-042
... by Armand and Cointe (1986); 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...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-064
... Centre 3Envenio, Inc In order to safely design submarines and other underwater vehicles, it is critically important to understand and be able to predict the hydrodynamic forces and moments they will experience in operation. Most methods of predicting the hydrodynamic forces during maneuvering assume...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-003
...Rapid Simulation of Ship Motions during Maneuvering in Operational Wave Conditions Kevin McTaggart (FL) Defence Research and Development Canada Ship design and operational planning require methods for predicting ship maneuvering including wave-induced motions. Rapid evaluation of ship motions...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-010
... captive model tests to derive the hydrodynamic derivatives in a really cost effective way. These derivatives are being inserted in a simulation maneuvering model for the prediction of the maneuvering performance. It should be noted that the hull, which is subjected to the virtual captive model tests...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 30–November 1, 2019
Paper Number: SNAME-SMC-2019-079
... cross deck magnitude trimaran trimaran design arrangement maneuvering october 2019 hull prediction 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-2019-093
.... 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 24–27, 2018
Paper Number: SNAME-SMC-2018-056
... Unexpected failures can have drastic consequences for ships, and taking a cue from other industries, operators are looking to implement predictive maintenance solutions using sensor data generated by shipboard machinery. One ship operator engaged with artificial intelligence (AI) company Spark...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 24–27, 2018
Paper Number: SNAME-SMC-2018-068
... artificial intelligence location dependent green water quantity prediction 1 On the Creation of a Safe Operating Envelope for Ships Sean Kery, Scott Henry, Michael Eaton, John Vasilakos CACI Abstract: A Safe Operating Envelope (SOE) for sea going vessels seems like a good idea at face value...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 24–28, 2017
Paper Number: SNAME-SMC-2017-031
... The planing hull form has long been employed in modern marine vehicle design. Its improved performance in the high-speed range makes it a good candidate for powerboats, yachts, and other high-speed vessels. However, it is challenging to get an accurate and cost-effective prediction of resistance...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 24–28, 2017
Paper Number: SNAME-SMC-2017-077
... This paper presents a numerical method for predicting hydrodynamic forces and motions in waves for two ships. The numerical method utilizes the zero speed Green function in the frequency domain to provide hydrodynamic forces in both the frequency and time domains. Numerical predictions highlight...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, October 24–28, 2017
Paper Number: SNAME-SMC-2017-103
... design space candidate 2 strut swath vessel spectrum surrogate model geometry artificial intelligence irregular wave upstream oil & gas fidelity prediction strip theory frequency optimization problem algorithm bayesian optimization displacement Multi-Fidelity Bayesian Optimization...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, November 1–5, 2016
Paper Number: SNAME-SMC-2016-065
..., rising concerns about the excessive simplifications at the basis of their formulation. However, for highly multi-dimensional problems, global optimization algorithms based on URANS objective functions predictions are nowadays still computationally too expensive. We address this dualism by presenting a re...
Proceedings Papers

Paper presented at the SNAME Maritime Convention, November 1–5, 2016
Paper Number: SNAME-SMC-2016-058
... In present paper, the fatigue crack growth of a surface crack in a deck detail made of high tensile thick plate steel in large container ship has been predicted by using the fatigue crack growth method. The stress ranges and mean stresses corresponding to 12 load cases are calculated following...

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