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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Mekanika: Majalah Ilmiah Mekanika Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Firdaus, Nurman
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Aerospace Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Journal : Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)

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Hydrodynamic Analysis of Patrol Vessel Based On Seakeeping and Resistance Performance Firdaus, Nurman; Ali, Baharuddin
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 60 No 1 (2018): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (711.611 KB) | DOI: 10.36842/jomase.v60i1.66

Abstract

The patrol vessel must have a good performance criteria for a sea worthiness.The hydrodynamic aspects analysis of a ship design is a main step conduct by designer. This study describes an analysis of motions and ship resistance. The seakeeping test conducted two variations of a ship loading condition. The ship's motion response to sea-state 4 waves with the heading of 180 and 135 deg. The ship resistance test with two draft conditions is calculated by model test and numerical simulation. The ship motion response is expressed in terms of the probability distribution. The values of ship resistance are presented as a non-dimensional graph with a Froude number. The ship loading conditions on a vertical center of gravity is higher resulting in a larger ship motion response than lower vertical center of gravity, as well as the heading of wave is very influential. The results of resistance test above Froude number 0.3, a resistance of ship increase and began to appear hump resistance around a hull.
Experimental Study of the Probability Distributions on the Seakeeping Performance of Monohull and Catamaran Design Ali, Baharuddin; Firdaus, Nurman
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 47 No 1 (2017): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1297.325 KB) | DOI: 10.36842/jomase.v47i1.174

Abstract

A safety and a comfort criteria of ship, one of them which can be known from ability of the ship motion on sea wave. The development of maritime technology in particular shipbuilding, catamaran ship design is one of the considerations in modern ship design, in addition to monohull ship design. This research describes the analysis of seakeeping model test of monohull and catamaran ship. The seakeeping model test is performed on sea- state 4 with a heading of 45 deg, 90 deg, 135 deg and 180 deg. Ship motion responses in the form of heave, pitch and roll motion, are presented in the form of the probability distribution curves. From the results of seakeeping test, it can be seen that the catamaran ship provides motion response relatively smaller than the monohull ship.
Co-Authors Adiputra, Ristiyanto Baharuddin Ali, Baharuddin Fajri, Aprianur Falah, Fajrul Jurkovič, Martin Kandimba, Enock Michael Lutanto, Agus Muryadin, M Nasir, Mochammad Nurhadi