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Agoes Santoso

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Author-ID : 2776151

Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Articles

Perancangan Controllable Pitch Propeller Pada Kapal Offshore Patroli Vessel 80 (OPV80) Alfan Dicky Firmansyah; Agoes Santoso; Edy Djatmiko
Jurnal Teknik ITS Vol 1, No 1 (2012)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Perkembangan teknologi maritim di Indonesia mulai menemui titik kemajuan, tak terkecuali untuk bidang trans-portasi laut yaitu perkapalan. Oleh sebab itu, saat ini banyak kajian-kajian yang dilakukan di dunia perkapalan. Pengem-bangan yang dikaji, dilakukan pada banyak bidang di kapal. Antara lain adalah pada teknologi penggerak, sistem-sistem, dan maneuvering kapal. Pada tugas akhir kali ini akan dibuat suatu kajian mengenai perancangan propulsor non konvensional jenis controllable pitch propeller (CPP) untuk diterapkan pada kapal di Indonesia. Perancangan dilakukan dengan fokus utama yaitu pada design dari screw blade propeller untuk diterapkan pada CPP. Selama ini CPP yang digunakan di Indonesia adalah impor. Sehingga timbul inisiatif untuk mengembangkan produk CPP dalam negeri. Tipe baling-baling yang akan digunakan pada CPP adalah Wageningen B-Screw Series. Pada perencanaan, didapat range pitch CPP pada nilai P/D 0,5 sampai P/D 0,872 dimana P/D 0,872 adalah yang paling optimum dengan matching point paling bagus. Pada P/D 0,872, kapal bisa berjalan pada kecepatan maksi-mumnya dengan BHPscr mesin. Kemudian akan didapat diagram karakteristik dari CPP dengan baling-baling yang dipilih. Dari perencanaan flens CPP blade, didapat flens dengan modulus 3692640 mm3 dan kemudian dibuat design blade CPP tersebut.

Studi Perancangan Degaussing System untuk Melindungi Kapal Perang Tipe OPV 90m dari Medan Magnet Emil Faridhan Primaseta; Agoes Santoso; Sardono Sarwito
Jurnal Teknik ITS Vol 1, No 1 (2012)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Degaussing system adalah suatu sistem yang digunakan pada bagian logam atau perangkat elektronik yang beresiko medan magnetik. Pada kapal militer sistem ini digunakan untuk menghindari ranjau magnetik maupun torpedo yang menggunakan medan magnet sebagai sensor pendeteksi logam ketika kapal sedang berpatroli maupun sedang berperang. Dari studi literatur yang dilakukan, dapat diketahui bagaimana cara instalasi degaussing system pada kapal dan perlengkapan apa saja yang dibutuhkan untuk sistem tersebut. Degaussing system yang didesain pada skripsi ini mempunyai kekuatan medan magnet sebesar 27,5 Tesla dengan daya sebesar 12 kW. Desain koil diletakkan pada lambung kapal tepat dibawah garis air untuk mendapatkan daya hantar magnet yang baik. Berat dari instalasi untuk degaussing system ini adalah 1040 kg.

Design of Flettner Rotor in Container Carrier 4000 DWT with CFD Method Irfan Syarif Arief; Agoes Santoso; Abdullah Azzam
International Journal of Marine Engineering Innovation and Research Vol 2, No 2 (2018)
Publisher : Institut Teknologi Sepuluh Nopember

Flettner rotor is a technology that utilizes the natural wind to help the oncoming vessel. The working principle of the flettner rotor corresponds to the theory of magnus effect, in which the force arises due to the difference in pressure between the two sides of the flettner rotor. In this research the simulated flettner rotor has a diameter of 3 meters with a height of 18 meters. Simulations were performed 16 times with variations performed on rotation of rotor (0, 100, 300, and 500 rpm) and wind speed (5, 10, 15, and 20 knots). Flettner rotor analysis is done by computational fluid dynamic method. CFD results state that the largest coefficient lift value is on the flettner rotor with rotation 500 rpm with wind speed 20 knots that is equal to 91,13. While in its use of 4000 DWT container vessel, flettner rotor is more work at the speed of vessel 10 knot with rotation speed of flettner rotor 500 rpm and wind speed 5 knot that is equal to 17,438% from force that must be expended to move ship.

Performance Analysis Rim Driven Propeller as a Propulsor using Open Water Test Agoes Santoso; Irfan Syarif Arief; Anggara Tio Kurniawan
International Journal of Marine Engineering Innovation and Research Vol 2, No 1 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

The use of duct in propeller is one of the breakthrough in the development of the propeller. Ducting not only claimed to be increasing efficiency of the propeller, but also capable to protect the propeller from impact therefore propeller lifespan is longer. From that idea then RDP is created. RDP propeller blade are designed to be fix at their housing called Rim, in the other word, the driving force came from it’s rim. On current RDP blade used is non-conventional blade. This thesis will discuss about design analysis of Kaplan Propeller Kaplan Ka-70 that modified on it’s thickness distribution. On this thesis data that is varied is motor load. Simulation using Open Water Test. The result, highest value of KT and KQ occur on 30% motor load and highest efficiency is 18,338% achieved on 260 Rpm.

Flat Top Barge 300 feet Using Portable Dynamic Positioning System Agoes Santoso; Juniarko Prananda; Amiadji Amiadji; Edi Jadmiko; Izzu Alfaris Murtadha
International Journal of Marine Engineering Innovation and Research Vol 1, No 2 (2017)
Publisher : Institut Teknologi Sepuluh Nopember

Portable Dynamic Positioning System has not commonly applied to the ship, especially on barge. Besides for Dynamic Positioning function, the system can be used as ship's main propulsion. By using this system, the ship able to not using anchors because the functions can be performed by the Portable Dynamic System. Therefore, research about the application of Portable Dynamic Positioning System on the ship is conducted. This research aims to design a Flat Top Barge 300feet ship, to determine the specifications of Portable Dynamic Positioning System which is used, and to find out the ship stability which is designed on the empty payload condition and maximum payload. This research designed the ships with main dimensions LWL 90.1 meters, 25 meters wide, 5.5 meters high and 4.2 meters draught. To generate the ship with a maximum speed of 8 knots, it takes four thruster supplied with power 225 kW each, so that the total generated power is 1100 kW. This study analyzes three conditions of the ship stability, there are the condition of full payload, empty payload, and maximum payload. Each payload conditions will be analyzed regarding the large payload and draught water produced. The first is full payload conditions resulting payload in the amount of 5650 ton with a draught on the LCF at 4,181 meters. The second is the large empty payload condition displacement is 2809 ton and water draught on the LCF at 1,591. And the last is maximum payload conditions, resulting payload in the amount of 7450 ton with a draught on the LCF at 4,994 meters.

Analysis of the Effect of Sloshing on Damage Stability after the Addition of LNG Tanks Agoes Santoso; Achmad Baidowi; Mardisuin Siahaan
International Journal of Marine Engineering Innovation and Research Vol 5, No 3 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

The Damage Stability, better known as leaky ship stability, is a condition where the vessel has a leak in the ship's compartment so that the stability condition of the ship is disrupted. This study is a study of the effects caused by sloshing on the stability of the ship. The method used to calculate damage stability is the lost buoyancy method. This method assumes a condition where when the vessel has a leak, the vessel buoyancy will decrease. This happens because the empty space in the vessel will be filled with water, so it is no longer the part that contributes to the buoyancy so that the ship will increase and can result in sinkage. According to the calculation of SOLAS (Safety of Life at Sea) Consolidated Edition 2014 Chapter II-1 Part B-1. There are two indexes compared, namely index Required index R = 0.77172, which depends on the length of the lining and Attained subdivision index A = 0.83736. The pi factor shows a maximum of 5 leak zones that can be overcome by the ship to remain stable. By comparing the index value of A> R, it can be seen that this ship has fulfilled the SOLAS requirements.

Co-Authors Abdullah Azzam Achmad Baidowi, Achmad Alfan Dicky Firmansyah Amiadji Amiadji Anggara Tio Kurniawan Edi Jadmiko Edy Djatmiko Emil Faridhan Primaseta Irfan Syarif Arief Izzu Alfaris Murtadha Juniarko Prananda Mardisuin Siahaan Sardono Sarwito

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