Journals Proceedings

Abstract

The economical and high-performance resistance hull is required due to the increasing oil price and the regulation of CO2 emissions, one of the methods to improve the resistance performance of medium-sized passenger ship is the hull design adopted with the gooseneck bulb. In order to effectively adopt the gooseneck, the resistance performance estimation and the optimization are demanded in accordance with the bulb parameters. This study performs the numerical series tests on the 5 kinds of bulb parameters to derive the regression equation to be utilized for the hull form design, of which data was analyzed statistically. This regression equation for resistance estimation is to be set as an objective function, and then using the optimization algorithm searches for the combination of the design variables of gooseneck bulb equivalent to the lowest point on the regression equation under several design conditions. Hull form design and its numerical simulation perform on the optimal component of the bulb hull suitable for a particular passenger ship that is among the ferries operating in the sea of the Far East Asia. As a result, the developed design method in this study confirmed the possibility of the hull form design of passenger ship applied gooseneck bulb with a good resistance performance.