A Study on the Wave Induced Responses for High Speed Hydrofoil Catamaran

研究了一种具有被动运动控制系统的新型高速双体船。为了获得舱室在波浪中的简化运动，舱室通过铰链和弹簧与双船体连接，并配备了全淹没水翼。他们主要从数值计算的角度论证了新型船舶在波浪中减小运动的可能性。但是，由于使用小型模型进行了少量实验，因此数值计算的能力尚不清楚。本文研究的是同类双体船，该双体船用弹簧代替连接铰链，以获得减小的升沉运动和俯仰运动。为了将数值结果与实验结果进行比较，在规则波和不规则波中分别采用2m长的模型进行了模型实验。计算结果与实验结果吻合较好，可应用于原型船设计阶段船舶在波浪中的性能预测。

A new type high-speed catamaran with a passive type motion control system has been studied. In order to obtain the reduced motions of cabin in waves, the cabin was connected to the twin hulls by hinges and springs and it was also equipped with the fully submerged hydrofoil. They showed the possibility of the reduced motions in waves for a new ship mainly from the numerical calculations. However, the capability of the numerical calculations had not been clear since a small number of experiments using a small model.This research is concerned with the similar type catamaran, in which the connecting hinges are replaced by springs to obtain the reduced heave motions as well as pitch motions.In order to compare the numerical results with the experimental ones, model experiments have been carried out by use of a 2m long model both in reqular and irregular waves. Fairly good agreement between the calculated and experimental results are obtained and the calculation method can be spplied to the prediction of the performance of the ship in waves in the design stage for a prototype ship.