ANALISIS SEAKEEPING DAN OPERABILITAS KAPAL PATROLI UNTUK PERBAIKAN SISTEM LAMPU ANCANG BANDARA TEPI LAUT

Abstract

The maintenance of the swaying light system requires fast handling to meet the procedural
needs of aviation. Therefore it is necessary to carry out an in-depth analysis of seakeeping and
operability to reduce the risk of ship delays when needed when sudden swaying lights are repaired.
Movements caused by external forces acting or sea waves will affect the comfort and safety of the crew
and passengers of the ship itself. Ship movement response is a seakeeping parameter that must be
considered to support the feasibility of ship design.In this final project, the seakeeping analysis process
uses Maxsurf Motion software to generate ship movement values. The variations in the direction of
arrival of the waves used are 00, 450, 900, 1350, and 1800 at a speed of 20 knots. Meanwhile, variations
in significant wave height are 0,05; 0,3; 1; 2; dan 3,3 meter and wave period used are 5,6; 6,8; 7,5;
10; and 11 second and ship shipping routes according to Natuna waters wave data from BMKG.
Calculations are performed using Maxsurf Motions Advance software.The results that can be
concluded in this final project are the percentage of ship operability based on seakeeping criteria
according to Olson 1978 and the U.S Coast Guard where 94,06% is operable and 5,94% downtime. In
addition, it can also be concluded that the operational wave height that is permitted and safe for ships
sailing in the waters of the Natuna Sea is 3 meters.