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http://dx.doi.org/10.3744/SNAK.2011.48.5.426

A Development of the Ship Weight Estimating Method by a Statistical Approach  

Cho, Yong-Jin (Department of Naval Architecture and Ocean Engineering, Dong-Eui University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.48, no.5, 2011 , pp. 426-434 More about this Journal
Abstract
Accurate weight prediction methods are an essential of the ship design in both ship cost managements and performance satisfactions. When no parent or similar ships are available, an adequate method of the ship weight estimating is required. In this study, there was carried out to develop the ship weight estimating method for the preliminary design phase. The weight estimating methods were first surveyed by the references and summarized their characteristics. The weight estimation method by statistical approach was developed for the container ship because the containerized transportation markets is gradually growing and ship's size and loading capacity are rapidly enlarged. The correlation analysis and the multiple regression analysis were used for developing the weight estimating method. As a results of evaluating the developed method, the error ratio of the variation between estimated weight and ship's data was about 5%. And it was only 1% difference with the calculating weight of conceptual design results by shipyard design team that the estimating weight of ultra-large container ship was predicted by the developed method.
Keywords
Weight estimating method; Statistical approach; Ratiocination method; Correlationanalysis; Multiple regression analysis; Error ratio;
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