Oludi, Kingsley. & Nwoka. B. Godstime.
Intact Stability Analysis of a Catamaran Vessel
Abstract
This study examines the intact stability analysis of a passenger catamaran ship under three distinct load scenarios: a lightship with full tanks, a lightship with no passengers, crew, or empty tanks, and a fully loaded ship to maximum free-board draught. The catamaran hull form design was modeled using the maxsurf program as the Naval Architecture tool, and the stability study was conducted using the maxsurf stability. According to the intact stability criteria in IMO A.749 (18) Ch. 3.1.2.1-4, the stability analysis was carried out. The purpose of the stability assessment was to confirm that the vessel's stability meets international requirements. The area beneath the GZ curves in the following ranges was evaluated using a numerical technique (Simpson's rules): 0º to 30º; 0º to 40º; and 30º to 40º. The range of stability for all three loadcases was adequately justified, and the maximum heeling moment was determined to be 954.48 tonnes-m for loadcase 1, 755.36 tonnes-m for loadcase 2, and 671.58 tonnes-m for loadcase 3.With a maximum heeling moment of 954.48 tonnes-m, the Catamaran at full load (Loadcase 1) was shown to be more stable than Loadcases 2 and 3.
Keywords: Catamaran, Stability Analysis, vessels, load case, meta-centric.
