商船の基本計画におけるHydro-static curveの急速作製法について
1960 年 1960 巻 107 号 p. 243-250
詳細
1960 年 1960 巻 107 号 p. 243-250
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 constants, i. e., λ, β, δ, κ and κδ 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.
