Effect of Hull form Coefficients on the Vessel Sea-Keeping Performance

This paper investigates the hull form of a high speed chine vessel based on a smart model, so as to observe the effect of variations in some geometrical parameters and hull form coefficients, such as Cwp and Cp, on sea-keeping response by means of numerical and experimental methods. For modeling, neural networks and polynomial fitting methods are combined to achieve sufficient accuracy in modeling. The effect of variations in Cwp and Cp on the hydrodynamic response, which is calculated by the modified strip theory method and Pierson-Moskowitz (PM) wave spectrum, is illustrated. The main assumption of the paper is that variations in hull form parameters are so slight that each variable can be assumed independent of other variables. Displacement, speed and angle of wave approach are considered constant for the vessel and the model in this paper. All geometrical parameters and vessel hull form coefficients affect the vessel hydrodynamic coefficients differently. Two of these mentioned parameters are the waterplane area coefficient and prismatic coefficient whose effects on the vessel seakeeping are studied. Simulation results indicate that present modeling can be applied to vessel hull form design, considering geometrical limits and the desired optimal conditions.

並列關鍵字

sea-keeping ； waterplane area coefficient ； prismatic coefficient ； neural networks method ； polynomial fitting method

參考文獻

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延伸閱讀

Ozkok, M. (2014). Risk Assessment in Ship Hull Structure Production using FMEA. Journal of Marine Science and Technology, 22(2), 173-185. https://doi.org/10.6119/JMST-013-0222-1
程維淵（2011）。Hull Form Transformation and Optimization of the Sea Arrow Bow for a Containership〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2011.02991
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Lin, C. T., Lin, T. Y., Hsieh, Y. W., Lu, L., Hsin, C. Y., & Lin, C. W. (2018). INVESTIGATION OF THE SEAKEEPING PERFORMANCE OF TWIN HULL VESSELS BY DIFFERENT COMPUTATIONAL METHODS. 中國造船暨輪機工程學刊, 37(3), 127-136. https://www.airitilibrary.com/Article/Detail?DocID=10234535-201808-201901190008-201901190008-127-136
Syu, C. S. (2021). Numerical Simulation of Planing Hull with Stern Hydrofoil in Calm Water [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU202100567

國際替代計量

Effect of Hull form Coefficients on the Vessel Sea-Keeping Performance

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