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Rizal, Nandiko
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Aerospace Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Seakeeping Test of Ship Perambuan Model at Maneuovering and Ocean Engineering Basin (MOB) Laboratory for Hydrodynamics Technology Rizal, Nandiko
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 59 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 (1107.333 KB) | DOI: 10.36842/jomase.v59i1.15

Abstract

Pure experiments done at Laboratory for Hydrodynamics Technology, in the form of seakeeping test of ship perambuan model at full load condition to obtain motion data of ship model recorded by using wireless optical tracking system. With wireless optical tracking system is expected to be more able to describe the phenomenon of motions the ship while sailing. Seakeeping test ship perambuan model is done at Maneuovering and Ocean Engineering Basin (MOB), in irregular wave conditions with significant wave heights Hs = 2.0 m and peak wave period Tp = 8.0 sec at the direction of wave relative to the direction of the ship 180 deg and 135 deg. Measurement of motion of the ship includes 6 DoF (Degree of Freedom) motions that is surge, sway, heave, roll pitch and yaw. Statistical analysis of measurement results is presented in order to know the quality of the ship motion. To support the analysis, the measurement results are also displayed in the Response Amplitude Operator, RAO.
Resistance Test of Fast Patrol Ships in the Islands of Indonesia Rizal, Nandiko
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 58 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 (552.301 KB) | DOI: 10.36842/jomase.v58i1.5

Abstract

This paper is researching about the results of the resistance test from fast patrol ships in Indonesia. The test itself describes a series of resistance test of the Fast Patrol Ship model in a Towing Tank. The test has a purpose to predict the resistance and effective horsepower (EHP) of a ship at a certain speed on various knots. Resistance test is done at full load condition, and by making model of ship with scale which is adjusted with Towing Tank capacity at Indonesia Hydrodynamics Laboratory (IHL) - BPPT. The testing itself will use various equipment and instruments such as Trim Meter and Data acquisition tools. The shape and dimension of the model are based on the client’s lines plan and are made of fiberglass / laminated wood. The results are presented in curve form describing the relationship between the velocity of the vessel to the total ship resistance and the ship effective power (EHP) in knots and Kilowatts unit
Measurement of Depth of Seabed and Sea Flow Rate Under SuraMadu Bridge Madura Side for Determination of Mooring Turbine Construction Sea Power Plants Rizal, Nandiko
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 43 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 (2445.066 KB) | DOI: 10.36842/jomase.v43i1.184

Abstract

SuraMadu bridge as one of the bridge on Madura have a strategic function. Due to the rapid population growth on Madura, the people require a strategic and cheap electricity for industrial development especially in the region of Surabaya and Madura. The purpose of measuring the depth of the seafloor and ocean currents on strait of Madura is to know the contour of the seabed and the speed of ocean currents around the masts of the SuraMadu bridge of Madura. To measure the depth of a seabed and the ocean currents at a various points from SuraMadu Bridge are required to predict the characteristics of the ocean. The results showed the depth of the waters and the speed of ocean currents in the research area around the SuraMadu bridge ranges from 12 meters up to 15 meters with sea current velocity between 0.3 m/s² up to 1.6 m /s². The research method used the case study method. This research is conducted covering activity of location survey. Furthermore, bathymetry data analysis and processing bathymetry data analysis are performed.
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