Hold漲水等に見るFreewaterのTransverse Mt.に依る影響(日本航海学会第8回講演会)

抄録

It is necessary to take water ballast in hold, etc, when ship sails at light condition. Taking water ballast, we must consider three problems as following ; 1. Virtual loss of GM [numerical formula] M: Righting mt, original. M_T: Free water tank's Mt. 2. Correction of phase diff, between ship and free water. [numerical formula] φ: phase diff. 3. Dynamical pressure at tank's wash plate, etc. [numerical formula] d: dist fr. Ship's C.G. to water ballast f(θ): Correction coeff. of anti-isochronism motion.