On the Transverse Strength of Ore Carriers
1966 年 1966 巻 120 号 p. 135-145
詳細
1966 年 1966 巻 120 号 p. 135-145
When a large ore carrier is floating in the full load condition, a large amount of ore load is acting on the double bottom downwards and a large amount of buoyancy is acting on the wing tank upwards. In this case, it is expected that the relative deflection between the side shell and the longitudinal bulkhead increases and induces large stresses in the transvese rings. According to this way of thinking, the authors try to calculate the transverse strength of ore carriers including the relative deflection and the stresses induced by it, and then try to make some considerations upon the effects of shear rigidity of swash bulkheads and of transverse rings.
From these calculations following things are found :
(1) Induced stresses due to relative deflection between side shells and longitudinal bulkheads can not be neglected.
(2) For the purpose of making relative deflection small, it is not effective to set swash bulkheads of reinforced transverse ring type, but is effective to set swash bulkheads of perforated plane type.
