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ASRO JOURNAL - STTAL
ISSN : 24607037     EISSN : -     DOI : -
ASRO JOURNAL is bi-annual international referred journal with the objectives to explore, develop, and elucidate the knowledge of operation research, system analysis, logistic management, and policy & strategy to keep practitioners and researchers informed on current issues and best practices, as well as serving as a platform for the exchange of ideas, knowledge, and expertise among technology researchers and practitioners. ASRO (Analisis Sistem dan Riset Operasi) Journal provides an opportunity to share detailed insights from different understandings and practices associated with technology. It provides an international forum for cross-disciplinary exchange of insights and ideas regarding value and practices for dissemination. ASRO (Analisis Sistem dan Riset Operasi) Journal will publish your work to international society of practitioners and researchers with interest in technology and development from a wide variety of sectors.
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Articles 216 Documents
ANALISA BEBAN KERJA PRAJURIT KOPASKA PADA AKTIVITAS LATIHAN MENGGUNAKAN METODE NASA-TLX (TASK LOAD INDEX) DI SATKOPASKA KOARMATIM SURABAYA Bandono, Adi; Sadarianto, Sadarianto
JOURNAL ASRO - STTAL - INTERNATIONAL JOURNAL Vol 1 (2014): Jurnal Analisis Sistem & Riset Operasi
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

Berbagai macam kegiatan aktivitas latihan yang dilaksanakan oleh para prajuritKopaska di Satuan Kopaska Koarmatim Surabaya yang bertujuan mempertahankankemampuan/skillprajurit Kopaska di tiga media latihan antara lain aktivitas menembakreaksi/Markmanship mewakili aktivitas latihan media darat, aktivitas latihan menyelamtempur/Closed Circuit mewakili aktivitas latihan media laut dan aktivitas latihan terjunbebas/Free Fall mewakili aktivitas latihan media udara, aktivitas-aktivitas latihan tersebutsangat berisiko tinggi yang sering terjadi kecelakaan personil saat aktivitas latihan digelar.Oleh karena itu penelitian ini akan menganalisa beban kerja mental prajurit Kopaskapada aktivitas-aktivitas latihan yang dilaksanakan sehingga diketahui aktivitas latihan mediaapa, yang memiliki beban kerja mental tinggi dan seberapa besar perbedaan beban kerjamental prajurit kopaska diantara aktivitas-aktivitas latihan tersebutHasil dari penelitian ini menunjukkan bahwa rata-rata beban kerja mental prajuritKopaska pada aktivitas latihan menyelam tempur/Closed Circuit mewakili aktivitas latihanmedia laut paling tinggi sebesar 68,24, selanjutnya peringkat kedua pada aktivitas latihanterjun bebas/Free fall mewakili aktivitas latihan media udara sebesar 66,58, peringkat terakhirpada aktivitas latihan menembak reaksi/Markmanship mewakili aktivitas latihan media daratsebesar 60,68.Perbedaan beban kerja mental prajurit Kopaska diantara ke tiga aktivitas media latihantidak begitu signifikan, dari ketiga aktivitas media latihan yang dilaksanakan prajurit Kopaskasemua berada pada kategori beban kerja mental tinggi padaRange(50-79), Kontribusiterbesar yang membentuk rata beban kerja mental prajurit Kopaska Koarmatim Surabayapada aktivitas latihan di media darat, media laut dan media udara bersumber dari tingkatusaha/Effort, kebutuhan waktu/Temporal Demand dan kebutuhan mental/Mental Demandserta kebutuhan fisik/Phisical Demand, sedangkan kontribusi terendah/baik/good berasal daritingkat frustasi/Frustasion Level dan tingkat keberhasilan/Own Performance.
RISK MANAGEMENT ON THE WARSHIP TASK OPERATIONS Diksono, Diksono; Jiwa, I Made; Suparno, Suparno
JOURNAL ASRO - STTAL - INTERNATIONAL JOURNAL Vol 9 No 1 (2018): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

ABSTRACT The main task of the Indonesia Navy is to enforce the law and maintain security in the territorial sea of national jurisdiction, so that the Indonesian Navy is required to have the main tool of weapons systems (Alutsista) are always ready to carry out the task. The frequent occurrence of accidents experienced by the Indonesian Warship (KRI). This reduces the ability of Warship in performing the task. The purpose of this research is to investigate the causes and effects of accidents, and seek risk mitigation that is considered appropriate. Formal Safety Assessment (FSA) is a structured and systematic methodology used for maritime safety analysis. The fault tree analysis is used to investigate the cause of marine accidents and the event tree analysis is used to determine the impact of an accident. The results of this study are FSA can be effectively applied in accident investigations, although the calculation of cost benefit analysis for warships can be ignored because the Warship task cannot be compared to the value of money. Keywords: Task Operation, Warship, FSA, fault tree analysis, event tree analysis
DESIGN OF SURGE AND ROLL MOTION CONTROL SYSTEM OF ITSUNUSA AUV USING PID CONTROLLER Herlambang, Teguh; Subchan, Subchan
JOURNAL ASRO - STTAL - INTERNATIONAL JOURNAL Vol 9 No 1 (2018): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

ABSTRACT This paper is about designing motion control system with 2-DOF motion equation to be applied to an Autonomous Underwater Vehicle (AUV) system. The 2-DOF motion equation which consists of surge and roll motion in the form of equations of nonlinear motion. The control system design applied to the ITSUNUSA AUV system uses the Proportional Integral Derivative (PID) method. The simulation results of the PID control system with the motion equation with 2-DOF on the ITSUNUSA AUV system show that the system proves to be stable at a predetermined set-point with an error of 0.01% for surge motion and that with an error of 4.2% for roll motion. Keywords: AUV, motion control, PID
OPTIMIZATION OF THE ANP AND SET COVERING METHOD FOR THE ALLOCATION OF TANKER IN THE EAST SEA REGION OF INDONESIA Susanto, Arys; Susanto, Arica Dwi; Ahmadi, Ahmadi; S Suharyo, Okol
JOURNAL ASRO - STTAL - INTERNATIONAL JOURNAL Vol 9 No 2 (2018): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

As an archipelago which has a wider sea area than land, Indonesia, in this case the oil company, must be able to serve and accommodate oil throughout the Indonesian sea, especially the eastern region. The lack of tanker cause the run out of fuel oil in remote areas, so there needs to be a sector division included in oil companies. The method used by researchers was the Analytic Network Process (ANP) approach and the set covering problem method. By determining the right dock location for the Tanker, the dock would be able to cover the entire existing sector, and through the determination of the proper tanker assignment plan, the entire territory of Eastern Indonesia would be able to be covered by the presence of the Tanker. The results of the study show that the candidate starting point assignment was produced by 4 (four) ports as the starting point for the assignment of tankers. These ports consist of Ambon in charge of covering sectors 4, 5, 6 and 7, Makasar port was in charge of sector 1 and to cover sector 3 while Tegal port is in charge of covering the patrol sector 2
FAILURE RISK ANALYSIS GLASS BOWL PRODUCTION PROCESS USING FAILURE MODE EFFECT ANALYSIS AND FAULT TREE ANALYSIS METHODS (A CASE STUDY) Mashudi, Ali; Suharjo, Bambang; Syahtaria, Ikhwan
JOURNAL ASRO - STTAL - INTERNATIONAL JOURNAL Vol 9 No 2 (2018): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

Product defects are a natural thing in a production process, but it would be better to avoid them. XYZ Industries is a company that produces glassware in the form of the glass bowl. The production failure experienced by this company is still high at 3.1% of the total production while the defect target that the company wants is 2%. The purpose of this study was to identify the types of defects that occur in glass bowl products on the production floor based on the results of searches of literature studies and deep interviews with employees, get the risk of failure of the largest production process in the RPN (Risk Priority Number) value of the FMEA method then analyzed again using the FTA method and determine the proposed improvements needed based on the analysis of defects that occur in glass bowl products, thus minimizing product defects and increasing company profits. In this study using the method of Failure Mode and Effect Analysis (FMEA) and the Fault Tree Analysis (FTA) method to identify failures that occur and provide prevention solutions. Based on the results of data processing, the proposed improvements given to the company as a whole are the company in order to pay more attention to the maintenance of the machine so that the machine can avoid the failure of its function
DETERMINATION OF MAINTENANCE PRIORITY INDONESIAN NAVY SHIP DEPO LEVEL USING FUZZY MCDM Kartiko, Donni; Suparno, Suparno; S Suharyo, Okol; Ahmadi, Ahmadi; Susanto, Arica Dwi
JOURNAL ASRO - STTAL - INTERNATIONAL JOURNAL Vol 9 No 2 (2018): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

The Indonesian Navy as a defense and security force of the sea has combat tools and supporting facilities projected in the Integrated Fleet Weapon System (Sistem Senjata Armada Terpadu/SSAT) with several components including Indonesian navy ships, marines, aircraft and bases. Depo level maintenance is comprehensive maintenance that can only be carried out by personnel who are experts in their field and supported by complete and sophisticated equipment and facilities. Maintenance at this level includes complete overhaul repairment, repowering MLM (mid life modernization), calibration of all equipment, and repairs to all parts thoroughly. Depo Level Maintenance is the nature of maintaining technical conditions based on rotary hours. If the repair schedule specified in the SPT (System for Planned Maintenance), the schedule must be carried out. This research aimed to present a priority setting solution in Depo level maintenance wherein the highest Indonesian Navy Ship ranking is determined from the level of the decision makers. Fuzzy MCDM is a method developed for decision making on several alternative decisions to get an accurate and optimal decision. In Indonesian Navy Ship Hardepo priority ranking process taken from the level of data processing decision makers using the Fuzzy MCDM method, the 5 highest priority values in implementation were obtained. Hardepo with the highest scores were KRP-812 0.111, BDU-841 0.108, LAM-374 0.107, KRS-624 0.097 and TJA-541 0.073
THE ANALYSIS OF THE DEVELOPMENT ALTERNATIVE ENERGY RESOURCES ON MARITIME SECTOR USING FUZZY MCDM METHODS Sutrisno, Sutrisno; Perdana, Yudha Sukma; Rahman, Abdul; Suharyo, Okol Sri
JOURNAL ASRO - STTAL - INTERNATIONAL JOURNAL Vol 11 No 04 (2020): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

The energy crisis has required the government to develop and utilize a renewable energy. Indonesia has a national jurisdiction area of ± 7.8 million km² with 2/3 of its territory being the sea of ± 5.9 million km². With this large sea area, it is a great potential for Indonesia to be able to develop alternative energy resources in the maritime sector amid the problem of fossil energy resources whose capacity is decreasing. Alternative energy in the maritime sector that can be developed include energy that utilizes ocean waves, ocean currents, tides, and ocean temperature differences. This study aims to determine the alternative energy of the maritime sector by reviewing from technical and financial aspects, political, economic, social and technological aspects. The method used is technical analysis, financial analysis, PEST analysis, and Fuzzy MCDM. The first step in this process is the mapping of the technical, financial, political, economic, social and technological aspects of each energy alternative with technical, financial and PEST analysis. Furthermore, with the Fuzzy MCDM method an alternative energy development selection model was made by assessing the performance of each. Based on the results of data processing shows the ranking of determining the alternative energy of the maritime sector with the first is the source of ocean current energy, the second is tidal energy, the third is wave energy and the last is Ocean Thermal Energy Conversion (OTEC). Keywords: Alternative Energy Resources, PEST, Fuzzy MCDM
DETERMINATION OF 120MM / 46A PREVENTIVE CARE INTERVALS FOR MINVET BOATS FOR INCREASING THE RELIABILITY OF THE SYSTEM Saepullah, Arief; Bernadi, Setiawan; Sutrisno, Sutrisno; Kriswanto, Djoko
JOURNAL ASRO - STTAL - INTERNATIONAL JOURNAL Vol 9 No 2 (2018): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

Most warships, especially corvette types, have a service life of more than twenty years. Intuitively it can be concluded that the components and equipment that have been installed are in the period of wear from the bathtub curve. This paper presents an alternative method in determining the optimum component maintenance intervals for weapons system equipment on ships that have entered wear (wear out). Optimum maintenance costs are determined by optimizing the component maintenance interval with objective functions to minimize the total cost of increasing reliability. The reliability of the system is achieved by increasing the reliability index of its constituent components. Weibull ++ is used to obtain parameters that are appropriate for each damage distribution, while Excel Solvers are used to calculating optimal maintenance intervals. In this writing, a case study will be carried out on the components of Bofors cannon laying gear TAK 120MM / 46A
TIME SCHEDULING AND COST OF THE INDONESIAN NAVY SHIP DEVELOPMENT PROJECT USING NETWORK DIAGRAM AND EARNED VALUE METHOD (EVM) (CASE STUDY OF FAST MISSILE BOAT DEVELOPMENT) Susanto, Arica Dwi; Suparno, Suparno; S Suharyo, Okol; Ahmadi, Ahmadi
JOURNAL ASRO - STTAL - INTERNATIONAL JOURNAL Vol 9 No 2 (2018): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

Missile Boat is one of Indonesian Navy Warship (KCR-60) which has a length of 60 meters and made domestically by Indonesian people at the PT. X in Surabaya. Time delay and cost overruns are the problems in the Missile Boat construction project (KCR-60). The purpose of this research was to schedule the time and cost of the project so that it can be completed on time and there is no swelling of costs for the implementation of the construction of the Missile Boats (KCR-60). The scheduling method used in this study was Precedence Diagram Method (PDM) on Network Diagram and Earned Value Method (EVM). Precedence Diagram Method (PDM) was used for scheduling the project time and showing the critical trajectory of project activities along with the acceleration time (Crashing Project) while Earned Value Method (EVM) was used to determine the costs and time performance and the factors that cause delays or progress of the project. The results showed that the project schedule had 13 activities that had a zero slack or critical activities which were in activities 1, 2, 3, 4, 5, 6, 16, 18, 21, 23, 26, 27, 28. There acceleration of time (Crashing Project) by adding hours of work or overtime for 1 hour every day to 21 activities (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19) will accelerate and reduce the duration of project completion, which was originally 414 days from the completion of the actual work of implementation to 363 days, thus the difference of effectiveness was 51 days (more effective). Meanwhile, for cost efficiency, based on the analysis of the real cost of project implementation, the amount of Rp. 20.407,094,998, - became Rp. 18,410,738,982, thus it became more efficient by Rp. 2,470,548,998, -
DEVELOPMENT OF APPRAISAL SYSTEM TO IMPROVE MILITARY OFFICERS PERFORMANCE ASSESSMENT PROCESS Agustiono, Wahyudi
JOURNAL ASRO - STTAL - INTERNATIONAL JOURNAL Vol 9 No 2 (2018): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

This paper at hand is aimed at describing the experience of developing a decision support system used for assessing employee performance. Taking into account the distinctive nature of the military organization that is rigorous, traditional, hierarchical, controlled, bureaucratic, and conservative; this study shows the complexity and challenges when it comes to design and developing the appraisal system. In view of the unique nature of the military organization in performing the appraisal process, this study sought various methods and techniques that could guide the development process. The experimental results suggest how the waterfall model was useful to guide the development process. In developing the appraisal system, this study shows how the Simple Multi-Attribute Rating Technique (SMART) and Representation Operation Memory and Control aids (ROMC) are useful conception. Finally, this study concludes how the selection appropriate approach, method and techniques contribute is critical to successfully the development of appraisal system, especially in a military organization that is considered as unique

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