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Subtitle: Regression analysis of the resistance and propulsive coefficients
Article type: Research Article
Authors: Shaher Sabit, A.
Affiliations: University of Alexandria, Arab Republic of Egypt
Abstract: Graphical and analytical methods have been previously provided for the hull surface generation and calculation of the main geometric particulars of the SSPA cargo liner series [1,2]11Numbers in brackets refer to References listed at the end of this paper.. Graphical methods have been presented by the SSPA for the calculation of the resistance and propulsive coefficients of any series form [3,4]. However, certain simplified assumptions were used, the analysis involved extrapolation beyond the limits of the series and corrections due to deviations from the standard LCB position were not given. This paper presents the results of the regression analyses performed on the resistance and propulsive coefficients data of the SSPA cargo liner series, which aimed at developing analytical expressions not involving unvalid assumptions and provide the necessary corrections to account for variations in the LCB position from the standard adopted. These regression equations are subsequently used to form a computer program for the calculation of the resistance and propulsive coefficients of any intermediate form within the range of the series, and are compatible with the generated hull forms provided from earlier analysis.
DOI: 10.3233/ISP-1976-2326302
Journal: International Shipbuilding Progress, vol. 23, no. 263, pp. 213-217, 1976
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