乗り心地の観点に基づく耐航性能の経済的評価

抄録

In the design process of a passenger ship, ship owners try to improve the seakeeping quality of a ship by changing ship hull shape and size, or by installing additional anti-motion apparatuses, like a fin stabilizer, an anti-rolling tank, a ride control system or an anti-pitching fin. Such improvements usually coat the ship owners. They consider the merit and the demerit of each choice carefully, and then decide which way is the best one from the point of view of operation and economics. In this paper, an evaluation method of seakeeping quality from the economical point of view is proposed. The method is divided into three parts ; prediction of ship motions in waves, prediction of vomiting ratio of MSI(Motion Sickness Incidence)of passengers on the ship, and prediction of increases of share of demand for the ship due to improvement of the vomiting ratio. The evaluation method is applied to two domestic routes in Japan.