商船の基本計画におけるHydro-static curveの急速作製法について

概要

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The author herewith proposes the new system of hydro-static calculation for the basic design of merchant ships as shown in Tables 1,2 and 3.This system is very convenient to use at any time and anywhere when desired.The key points of this system are as follows : -(1)The offsets of the water planes are non-dimensional, being easily obtainable by the percent scale as shown in Fig.2(2) The simplification of the calculation with the use of 5 cconstants, i.e., λ, β, δ, k and kδ which are led from L, B and d of the ship.(3) The simplification of the integral of the water plane with the application of the 5・8・-1 rule and the 3・10・-1 moment rule. Only half of the numbers of the water planes are necessary for the calculation as compared with the application of the Simpson's 1 st rule.(4) The standardization of the units in the calculation.Nomenclature.The meaning of the symbols are shown in the attached table.[table]