In recent years, the number of shipyards in Indonesia has increased significantly to anticipate the increasing demand and the government policy regarding the Cabotage Principles and Masterplan for Acceleration and Expansion of Indonesia’s Economic Development (MAEIED), and three Archipelagic Sea-Lanes (ASL’s) in Indonesia. However, shipbuilding and ship repair works have been centered in the western part of Indonesia. Therefore, this study aims to develop a potential strategy of shipyards in the eastern part of Indonesia to compete in the current market situation. The Analytical Hierarchy Process (AHP) method was used to model the strategy hierarchy and analyze the weight of sub-criteria as the internal and external factors of the shipyard competitiveness. Then, the Blue Ocean Strategy method was used to analyze the competitiveness strategy. To improve competitiveness, the shipbuilding industries in the eastern part of Indonesia have to focus intensively on reforming and upgrading several internal environment factors such as coordination and response, business network, high skill manpower, and complex ship types building ability. Besides, the shipyards also have to focus on external environmental factors, particularly on five factors that have a high influence on improving competitiveness, namely shipping company partners, networks and partnership with suppliers, government policies, human resource development, and cluster formation of shipyards.
Currently, the ship container generation has allowed for the carriage of containers on deck up to four tiers high. The container loads in tiers high affect on deck structure. Consequently, an insert plate is used and located on the top of the ship deck structure for placing the container corner fitting. Sometimes container fitting is placed between longitudinal deck beams under without supporting construction such as pillar or carling. Therefore, this matter should be analyzed to obtain the strength behavior of the insert plate. This study describes the strength analysis using the finite element method (FEM) through ANSYS software. Based on the simulation results, the maximum Von Mises stress of the insert plate was obtained exceeds 181 N/mm2 and 235 N/mm2 in the initial condition, whereas the insert plate could support only 15% loads per corner fitting (three tiers high). Then, the thickness addition of the insert plate until 24 mm reduced the stress, however, the reduction was a small magnitude. By adding two carling construction is similar to the size of a transverse deck beam, under the insert plate, the stress was obtained 138.54 N/mm2.
Maccini Baji port as minor port is a hub of small islands connectivities in Pangkejene and Kepulauan Regency, South Sulawesi. It has strategic role to serve cargo and passenger ship from not only small islands in Pangkejene and Kepulauan Regency but also from outside such as Papua, Maluku, and Nusa Tenggara Timur. Correspondingly, Maccini Baji port has faced the fluctuated increase of visited ships from 2011 to 2018 based on forecasting result by using stepwise and regression methods and has a good potential to be developed especially for cement cargo. This study describes analysis on port facility performance of Maccini Baji and its development. The research result has shown the berth occupancy ratio (BOR) of Maccini Baji port in 2022 will reach 61%. This has become a primarily point to consider in lengthening berth of Maccini Baji port. Therefore, the port berth of Maccini Baji should be lengthened 272 meters where existing berth length is 225 meters. In addition, basin and anchorage area will be also developed where the dimensions of turning basin will be 6 meters in depth, 121.8 meters in diameters, and its area will be 116 m2. The dimensions of anchorage area will be 6 metres in depth, and 105.9 meters in radius and its area will be 35.21 m2. Based on SWOT analysis, some aspects will be considered to succesfully develop Maccini Baji port such as geographic location, port facility improvement, increas of service capacity and facility efficiency, development of hinterland area, local government participation.
Development of CFD tool for evaluating of seakeeping performance of a ship in waves using Eulerian scheme with Lagrangian particle
Indonesia Government through the Ministry of Maritime Affairs and Fisheries is holding a fishery boat procurement assistance program of gross tonnage (GT) 5 to 30. In order to be effective investment for the program, a comprehensive study on fishing boat is emphasized to be carried out. This study aims to determine the investment components of a fishing boat with GT of 12, 21 and 30 based on the consideration of the local content, determine the feasibility of fishing boats investment including the local content aspect, and determine the weight of local content for the investment of fishing boat. The investment feasibilty was analysed by using Net Present Value (NPV) and Internal Rate of Return (IRR). In the present results, the three fishing boat sizes of GT 12, 21, and 30 were economic feasibility and suitable in order to support the welfare of fishermen in Sinjai Regency, South Sulawesi Province. The NPV and IRR within 10 years for the fishing boat size of GT 12 are approximately 823 million rupiahs and 77% respectively, 988 million rupiahs and IRR of 54% for GT 21, and 979 million rupiahs and 38% for GT 29. The weight of the local content aspect contributes in average of 81.47% on the investment of the fishing boat wherein the local content includes boat hull buliding, fishing equipment, and labor cost. In addition, the weight of the local content aspect for ship operation is average of 61.88% wherein the local content includes fishermen salary and fishing aggregating device.
The ferry business has become an important business segment for ship designers, builders and operators. Therefore, many ways have been done in order to increase ferry business through the proper design or converting ships by lengthening. This research is focused on the influences of lengthening a Ro-Ro ferry to hydrodynamics characteristic and loading capacity aspects. Moreover, the ships also are fixed in the same width and draft dimensions. The difference of the Ro-Ro ferries length is indicated by the addition of one column of car space where one column car space is given by car size including distance between car columns spaces which is an increment of every 5.88 meter. The total resistances of Ro-Ro ferries are obtained by ship model experiment in towing tank. There are 4 ship models that are made. The lengthening a Ro-Ro ferry is described into non-dimensional parameter by the ratio of ship length and displacement volume (L/V1/3). The hydrodynamics and the loading capacity of carried car aspects could be described into the ratio of resistance and loading capacity of carried car (RT/SUK) with ship speed. The research result shows that the lengthening of a Ro-Ro ferry affects on total resistance, speed, and loading capacity of carried car. The increase of total resistance is caused by higher residual resistance at high speeds and this is experienced by small length size. Therefore by lengthening the Ro-Ro ferry it could reduce total resistance in the same speed especially the residuary resistance but eventhough lengthening Ro-Ro ferry the effective speed should be considered. In additions, the effective speed for actual ships dimension in the same Rt/SUK 0.05 i.e. B5L10 is about 13.85 knot, B5L11 14.33 knot, B5L12 14.94 knot, and B5L13 15.45 knot respectively.
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