Total hull resistance of trimaran vessel model with variety of configuration in hull separation and variations in speed

Abstract

Multihull vessels have several advantages over than monohull vessels in terms of good stability, smaller drafts, and wider deck areas. Multihull vessels also have a larger wet surface area than monohull vessels, however, the resulting resistance remain smaller due to wave interference generated by each hull. The purpose of this study is to find a total resistance with different variations of speed and configuration. To determine the resistance value, a study of variations in speed and configuration of the hull was carried out based on the examination of trimaran ship models. The examination carried out on a physical scale based on the Froude method with experiments. Changes in the speed and configuration of the hull shape on the Trimaran ship are significant to the ship's resistance component. The optimal trimaran hull configuration will increase the lift force to the mainhull that the wet field area gets smaller and the resistance is getting smaller.