- Naval Architecture & Ocean Engineering
Maritime Educationedit
Research Interests:
Research Interests:
Research Interests:
Research Interests: Tourism and SWOT analysis
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Globalisasi ekonomi dan sistem perdagangan bebas secara analogi akan menghilangkan batas-batas antar negara. Kondisi ini menuntut bentuk kekuatan daya saing secara lokal hingga internasional. Untuk itu setiap galangan kapal secara... more
Globalisasi ekonomi dan sistem perdagangan bebas secara analogi akan menghilangkan batas-batas antar negara. Kondisi ini menuntut bentuk kekuatan daya saing secara lokal hingga internasional. Untuk itu setiap galangan kapal secara akselerasi melakukan pengukuran terhadap rasionalisasi peningkatan produktivitas dan daya saing galangan. Penelitian non eksperimental ini mengusulkan sebuah model nonparametrik berupa regresi polinomial dan model lintasan. Hasil pengembangan 2 (dua) model nonparametrik, meliputi cubic spline with 2 knots dan Shipyard PLS Path Modeling. Bentuk persamaan cubic spline with 2 knots: ƒ(BP) = – 6958,641 + 5866,252BP – 1605,596BP2 + 143,917BP3 – 897,560(BP – 4,25)3+ + 1322,863(BP – 4,50)3+ . Sedangkan bentuk persamaan shipyard PLS path modeling: ProduktivitasBatam = 0,379aktivitas kerja + 0,185budaya + 0,355kebijakan + residu, ProduktivitasJawa = 0,307aktivitas kerja + 0,182budaya + 0,281kebijakan + residu, Daya saingBatam = 0,240produktivitas + 0,567kebijakan + residu, Daya saingJawa = 0,281produktivitas + 0,522kebijakan + residu.
Research Interests: Engineering and Shipyard
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Research Interests:
Indonesia as an archipelago countries demand modern boats for marine security, resulting in a surge in the development of past patrol vessels. The investigation in this study focused on designs with and without a tunnel at the bottom to... more
Indonesia as an archipelago countries demand modern boats for marine security, resulting in a surge in the development of past patrol vessels. The investigation in this study focused on designs with and without a tunnel at the bottom to determine which design provided the least resistance. CFD offer realistic findings for comparing the problems encountered by two distinct kinds of fast patrol boats. The computation the use of no tunnel, the use of a tunnel on fast patrol boat reduced resistance by an average of 5.4%. According to the results of the CFD simulations, using a tunnel may greatly reduce the high pressure at the bottom in interactions with the flow of water. The utilization of using tunnel is a solution that may be employed more successfully for fast patrol boat operation
Research Interests:
Potensi wisata yang berada di pulau karimun memiliki beberapa destinasi objek wisata yaitu wisata pantai, air terjun, kolam renang, pendakian gunung jantan dan yang terbaru adalah reklamasi daratan yang dikenal dengan Coastal Area.... more
Potensi wisata yang berada di pulau karimun memiliki beberapa destinasi objek wisata yaitu wisata pantai, air terjun, kolam renang, pendakian gunung jantan dan yang terbaru adalah reklamasi daratan yang dikenal dengan Coastal Area. Restoran Terapung adalah sebuah rumah makan yang berdiri di atas permukaan air yang menyajikan dan mengolah makanan hasil potensi laut. Tujuan dari penelitian ini adalah untuk mendapatkan ukuran utama kapal (Principal Dimension), membuat bentuk dari rencana garis kapal (Lines Plan) yang sesuai dengan perairan Pulau Karimun, Kepulauan Riau dan pembuatan rencana umum (General Arrangement) kapal berdasarkan ukuran utama dan fungsi dari kapal sebagai sebuah restoran terapung. Penelitian ini dilakukan menggunakan data sekunder yang digunakan adalah data pembanding. Hasil dari penelitian ini adalah Ukuran utama yang di dapatkan dari hasil metode kapal pembanding didapatkan dengan rata – rata dan di lanjutkan dengan menghasilkan Gross Tonnage: 1409 m, Length Ove...
Research Interests:
This study aims to develop lake tourism by prioritizing of strenghts, weaknesses, opportunities and threats in the development of lake tourism located in Hendrosari Village, Gresik Regency. Which aims to optimize the potential that... more
This study aims to develop lake tourism by prioritizing of strenghts, weaknesses, opportunities and threats in the development of lake tourism located in Hendrosari Village, Gresik Regency. Which aims to optimize the potential that potential that exits in the lake to be used as a plate to find income because the tourism object is quite promising and the village community to developp and utilize these resources is very high. lake tour. In carrying out this development, the author will use several methods that will be used to determine the feasibility of developing lake tourism in hendrosari village, including the SWOT analysis method (Strenghts, Weaknesses, Opportunities and Threats).
As an archipelagic country, Indonesia has a concentrated deposit of salt in Java and Madura Island. Furthermore, the total demand for the mineral in 2017, 2018, and 2019 were 3.9, 4, and 4.2 million tons, respectively. This study was... more
As an archipelagic country, Indonesia has a concentrated deposit of salt in Java and Madura Island. Furthermore, the total demand for the mineral in 2017, 2018, and 2019 were 3.9, 4, and 4.2 million tons, respectively. This study was carried out in 4 stages, namely identification of raw materials, crystallization, mechanical, and re-crystallization. The salt crystallization and purification process is beneficial to the aquaculture, fishery, and health sectors. The results showed that the raw materials obtained from the coastal areas of East Java and Bali Island have an average NaCl interval estimation range of 80.31% to 92.37%, which indicates that they are suitable for salt production. The product obtained from the processes have the potential to initiate diversification of business development in the country with an estimation range of 95.38% to 97.25%.
The Seabus Alu-01 ship is an aluminum fast ship type, it has a service speed of 35-45 knots. Installation of the zinc anode on the Seabus Alu-01 is different from any general ship, as the zinc anode is mounted by protruding it into the... more
The Seabus Alu-01 ship is an aluminum fast ship type, it has a service speed of 35-45 knots. Installation of the zinc anode on the Seabus Alu-01 is different from any general ship, as the zinc anode is mounted by protruding it into the ship’s hull. This research performed a simulation the ship seabus alu-01 which has been modified to use the ellipse zinc anode. The final results of the research showed that ellipse zinc anode better than square zinc anode, because the ship using ellipse zinc anode has a flow velocities hull faster than ship using square zinc anode, drag force value lower, and the value of force lift ship using ellipse zinc anode higher than ship using square zinc anode.
Research Interests:
Nowadays, submarines are already being a lethal weapon for the navy around the world and also being a vessel for under water researches, in their developments, hydroplanes are being created as one of their maneuver equipments to reduce... more
Nowadays, submarines are already being a lethal weapon for the navy around the world and also being a vessel for under water researches, in their developments, hydroplanes are being created as one of their maneuver equipments to reduce the utilization of ballast tanks on the submarines. This research intend to use the hydroplanes as the diving plan of the submarine itself, by knowing the hydrodynamic theoretical impacts. The research process is a simulation of diving plan installation as a maneuver equipment, what are the advantages and disadvantages of the hydroplanes, what is the effect by adding hydroplanes to the submarine’s stability while operating under water and also how many forces that works on the hydroplanes and how does the forces that works on the hydroplanes affecting the submarine while maneuvering under water. The modeling process and simulation are be done by using ANSYS 14.5 program to observe the effect of adding the hydroplanes on a submarine.
Research Interests:
Currently Indonesian society's view of the activities considered as industrial salt production less profitable and does not require any skill level. Survey activity is conducted in the North Surabaya City. Determination of the... more
Currently Indonesian society's view of the activities considered as industrial salt production less profitable and does not require any skill level. Survey activity is conducted in the North Surabaya City. Determination of the strengthening of the model strategy using SWOT-AHP combined method with involving respondents from salt farmers, landless, Department of Agriculture Surabaya. The results showed that the strengthening of the strategic plan which will be progressively is Comparative Advantage Strategy, where the implementation of the plan to strengthen the productivity of salt and salt farmers in the Surabaya City, include: (1) Method innovation of Maduris plus in the production of salt land, (2) salt purification technology innovation of the people through appropriate technology, (3) the ability to diversify the products of salt, including salt, salt of various food, molten salt and the salt industry, and (4) the ability to access working capital through the strengthening ...
Research Interests:
This research is evaluation from the unmanned fast boat contest at Camplong Beach Madura 2013, there are many lack in our boat performance. And this is the problem that writer wants to study. Because the boat can’t drove at maximum... more
This research is evaluation from the unmanned fast boat contest at Camplong Beach Madura 2013, there are many lack in our boat performance. And this is the problem that writer wants to study. Because the boat can’t drove at maximum velocity and the boat flipped down when impacted with wave and wind. We expect with dimension plan took from hydrofoil ship concept can maintain the stability of the hull when the ship drove at high velocity. The modeling and analyzing process used in dimension plan is modeled and simulated with ANSYS 14.0. The goal of this research is to obtain the Design of RC Hydroplane dimension so as to maintain a stable condition when the ship drove at high velocity and the specification of RC Hydroplane: Length 700 mm, Breadth 280 mm, Height 199 mm, and draft 50 mm with velocity of 33,47 knots.
Research Interests:
Research Interests:
Abstract A hull development of outrigger RC boat model, which was made as planing hull was carried out numerically. The observation focus on the analysis of resistance and lift force which were produced by the boat while cruising that can... more
Abstract A hull development of outrigger RC boat model, which was made as planing hull was carried out numerically. The observation focus on the analysis of resistance and lift force which were produced by the boat while cruising that can enhance the performance and also help the boat to reach her best speed. The numerical study was using Ansys fluent code for resistance and lift force analysis. The overall results were further compared with the published data for verification purpose. The results are also believed can be useful in the development of the high speed boat model, especially in outrigger class.
Research Interests:
ABSTRACT.Blue Economy concept began with the farming of Artemia salt. The industry of farmer’s salt was one of the pillars that supported the economy of coastal communities. At present, the perspectives of the public on an industrial salt... more
ABSTRACT.Blue Economy concept began with the farming of Artemia salt. The industry of farmer’s salt was one of the pillars that supported the economy of coastal communities. At present, the perspectives of the public on an industrial salt production is less profitable and conducted by unskilled laborers. Nowadays, the farmer still used evaporation total method of sea water by solar power, where NaClwas ≤ 90% and residual brine. It is necessary to improve the salt production through combination between disk-mill and distillation evaporation technology to produce salt diversification product. The result of the combination process were refined salt with NaClthat was ≥ 90%, liquid salt with NaClthat was ± 60% and mineral water.
Research Interests:
In the industrialized world, low-carbon steel was often used as a construction material. One of the problems obtained in the low carbon steel welding process was its nature susceptible to shakes. The minimize the formation of residual... more
In the industrialized world, low-carbon steel was often used as a construction material. One of the problems obtained in the low carbon steel welding process was its nature susceptible to shakes. The minimize the formation of residual voltage in the connection area (Heat Affected Zone) can be done by the Post Weld Heat Treatment (PWHT) process The purpose of this study was to find out the effect caused by variations in heat treatment on heating steel ASTM A36 (Holding Time) to penetrant tests and determine the suitable temperature given to ASTM A36 steel after the welding process. The PWHT process was carried out with several variations of Holding Time, namely 1 hour, 2 hours, and 3 hours at 400 °C. Based on penetrant testing showed that the best value in Holding Time was 3 hours with no appearance of porosity defects
Coatings are important instruments in inhibiting the corrosion rate. Field facts in various Indonesian shipping industries show that the choice of organic materials as coating for ship paint uses epoxy, vinyl and polyurethane. Therefore... more
Coatings are important instruments in inhibiting the corrosion rate. Field facts in various Indonesian shipping industries show that the choice of organic materials as coating for ship paint uses epoxy, vinyl and polyurethane. Therefore an experimental study is needed on the adhesion ability of paint as a coating for ship armor with these three types of organic materials. The preparation of steel specimens with type ASTM A36 is carried out by blasting, visual inspection standard ISO 8501-1, and roughness test standard ISO 8503-4. Painting of specimens by measuring the thickness of the paint in the wet conditions ASTM D4414 standard and ASTM D4138 standard dry conditions. Treatment of specimens in two conditions, are: tropichal weather condition and salt spray conditon. Observation of specimens by scanning electron microscope and adhesion test standard ASTM D4541-02. The final result shows that the best adhesion ability of the main paint coating in tropical weather conditions was a p...
Research Interests:
Coatings are important instruments in inhibiting the corrosion rate. Field facts in various Indonesian shipping industries show that the choice of organic materials as coating for ship paint uses epoxy, vinyl and polyurethane. Therefore... more
Coatings are important instruments in inhibiting the corrosion rate. Field facts in various Indonesian shipping industries show that the choice of organic materials as coating for ship paint uses epoxy, vinyl and polyurethane. Therefore an experimental study is needed on the adhesion ability of paint as a coating for ship armor with these three types of organic materials. The preparation of steel specimens with type ASTM A36 is carried out by blasting, visual inspection standard ISO 8501-1, and roughness test standard ISO 8503-4. Painting of specimens by measuring the thickness of the paint in the wet conditions ASTM D4414 standard and ASTM D4138 standard dry conditions. Treatment of specimens in two conditions, are: tropichal weather condition and salt spray conditon. Observation of specimens by scanning electron microscope and adhesion test standard ASTM D4541-02. The final result shows that the best adhesion ability of the main paint coating in tropical weather conditions was a p...