In order to enhance the efficiency and safety of a ship sailing in rough seas, the authors aim to develop a ship dynamic performance system, which can be used to predict ship motion responses, wave loads as well as quasi-mean added resistance. Two-dimensional strip theory discretized by the source distribution method is implemented to calculate Response Amplitude Operators (RAOs) for 6 DOF motion as well as the wave loads for the vertical shear force and bending moment. In addition, the ITTC directional wave spectrum of the short-crested wave adopts the one-hundred years return sea state as the input for testing the sea-keeping performance. Subsequently, we developed a database for a specific ship to realize the relationship between the sea-keeping performance and a combination of wave headings and ship speeds. Since the calculation of hydrodynamic coefficients correspond to the instantaneous hull form below the free surface (draft), the B-spline curve fitting technique based on the fourth order Runge-Kutta method is introduced to describe the relative wave heights together with second order nonlinear forces.
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ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
July 1–6, 2012
Rio de Janeiro, Brazil
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4491-5
PROCEEDINGS PAPER
Numerical Simulation of Ship Dynamics for Application in a Weather Routing System Available to Purchase
Yu-Hsien Lin,
Yu-Hsien Lin
University of California at Berkeley, Berkeley, CA
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Ming-Chung Fang
Ming-Chung Fang
National Cheng-Kung University, Tainan City, Taiwan
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Yu-Hsien Lin
University of California at Berkeley, Berkeley, CA
Ming-Chung Fang
National Cheng-Kung University, Tainan City, Taiwan
Paper No:
OMAE2012-83515, pp. 499-508; 10 pages
Published Online:
August 23, 2013
Citation
Lin, Y, & Fang, M. "Numerical Simulation of Ship Dynamics for Application in a Weather Routing System." Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. Volume 4: Offshore Geotechnics; Ronald W. Yeung Honoring Symposium on Offshore and Ship Hydrodynamics. Rio de Janeiro, Brazil. July 1–6, 2012. pp. 499-508. ASME. https://doi.org/10.1115/OMAE2012-83515
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