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All Journal ASRO JOURNAL - STTAL STTAL POSTGRADUATE - INTERNATIONAL CONFERENCE
Anton Nugroho
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Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Other

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OPTIMIZATION OF THE AIRCRAFT ASSIGNMENT MODEL IN THE ALKI II REGION UNDERNEATH THE OPERATION OF SECOND FLEET COMMAND Mardi Winoelyo; Bambang Ispri; Anton Nugroho
STTAL POSTGRADUATE - INTERNATIONAL CONFERENCE Vol 6 No 1 (2022): Indonesia Naval Technology College STTAL Postgraduate International Conference -
Publisher : Indonesian Naval Technology College STTAL

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Abstract

Assignment Marine security operation is an operation where the presence at sea has strategic value for theexistence of national sovereignty and maritime security in Indonesia's national jurisdiction. The threat of securitydisturbances and violations at sea in the form of fishing theft, theft of timber and other natural resources as wellas encroachment on territorial boundaries by foreign ships requires the presence of the Indonesian navy PatrolElements (Ships and Aircraft) for security. The limited number of Indonesian navy Patrol Elements and the budgetprovided by the state as well as the need for securing the maritime territory of the Republic of Indonesia haveresulted in the need for thinking about optimizing the assignment of Patrol Ships and Aircraft in the Kamlaoperation sector and placement to their supporting bases, so that the right type and amount and operational costsin security. Ships and aircraft carry out patrols in randomly determined sectors. This optimization model identifiesthe related decision variables through open interview discussions, then sets the objective and constraint functionsas an optimization model to be developed. The application of the Goal Programming method which can beformulated by determining the decision variables related to the assignment of aircraft where the objective functionis to calculate the maximum radar coverage area in the operating sector and minimize operating costs. Meanwhile,Mamdani's Fuzzy Logic method is used to determine the output of certain radar coverage areas. In this case, itrequires the help of Matlab software on the Fuzzy Inference System (FIZ) toolbox to solve this problem.Keywords: “Maritime Patrol Aircraft, Coverage, Operating Costs, Goal Programming, Fuzzy Inference System,and Mamdani Fuzzy Logic”.
OPTIMIZATION OF PREVENTIVE MAINTENANCE AND REPLACEMENT INTERVAL OF CRITICAL COMPONENTS IN THE CUMMINS KTA 38D DIESEL GENERATOR Wakijo Wakijo; Suparno Suparno; Eko Krisdiono; Anton Nugroho
JOURNAL ASRO Vol 13 No 4 (2022): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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The Cummins KTA 38D brand diesel generator is a ship's power generation equipment owned by a supplier to warship electrical needs both at base or in operation. Based on damage report data from 2016 - 2022, the percentage of diesel generator damage reached 38.5% of the total damage to all ship equipment. The results of the analysis using the FTA method cause the failure of the diesel generator to be caused by one of the failure factors in the supporting sub-systems,both from the electrical sub-system, fuel sub-system, air sub-system, fresh water sub-system, seawater sub-system, the lubricant sub-system and the control sub-system were damaged. Calculation using FMECA, there are five critical components based on the RPN value with a "high" risk rating, namely the Body Cover Pump component with the risk of corrosion (205), the Impeller component with the risk of corrosion/cracking (260.5), the Cooler tube component with the risk of leakage (264,7), Mechanical Seal component with risk of damage/leak (192.8), Rectanguler Seal component with risk of leak (196). With a reliability approach and analysis of total cost replacement age preventive maintenance with a minimum reliability limit of 55.84%. It can be proposed maintenance intervals for Body Cover Pump components at 980 running hours with an increase in reliability of 30.87% and maintenance cost savings reaching 14.57%, Impeller components at 1581 running hours with an increase in reliability of 35.79% and maintenance cost savings reaching 29.28%, Cooler tube components at 979 running hours with an increase in reliability of 26.06% and maintenance cost savings reaching 16.40%, mechanical seal components at 1290 running hours with an increase in reliability of 33,20% and savings in maintenance costs reaching 22,57%, the rechtangular seal component on 979 running hours with an increase in reliability of 31.67% and savings in maintenance costs reaching 38.88%. Keywords: FTA, FMECA, Reliability dan Total Cost Replacement Age
DEVELOPMENT MODEL OF INDONESIAN NAVAL CADETS IN THE FRAMEWORK OF CREATING RESOURCES SUPERIOR HUMAN Azi Wardiana; Ahmadi Ahmadi; Rakhmad Susilo; Anton Nugroho
STTAL POSTGRADUATE - INTERNATIONAL CONFERENCE Vol 7 No 01 (2023): Indonesia Naval Technology College STTAL Postgraduate International Conference -
Publisher : Indonesian Naval Technology College STTAL

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Indonesian Naval Academy (AAL) is tasked with organizing the first education for Indonesian Navy volunteer officers at the academy level which produces Indonesian Navy officers who are tanggap, tanggon and trengginas. The purpose of education at AAL is to educate and train cadets to become future Indonesia Navy officers who are professional, able to adapt to science and technology, have a Sapta Marga spirit, and have the skills in accordance with the demands of the initial assignment on the Republic of Indonesia Warships (KRI) and Platoon Commander in the Marine Corps in order to support the duties of the Indonesian Navy. To realize Superior Human Resources, the Indonesian Naval Academy builds an Education system that is oriented towards the Tri Basic Patterns of Indonesia Armed Force Education, namely through Teaching, Training, and Nurturing Methods (Jarlatsuh) which cannot be separated from one another. Based on existing problems evaluation, assessment and development of the AAL education system need to be carried out. Evaluation is carried out using a system dynamic approach and Game Theory, namely by identifying the variables that affect Jarlatsuh and building a causal loop diagram followed by building the main model and its supporting submodels, to develop the AAL Graduate Quality model which consists of 4 (four) sub-models which include: AAL Graduate Quality Submodel. Teaching Submodels. Training Submodels. Nurturing Submodel. then implementing scenarios for intervening variables that need attention and determining policies using the Game Theory method with an approach to cooperative games by adopting the existing system in Japan's NDA. Keywords: Indonesian Naval Academy, NDA, system dynamics, Game Theory
Co-Authors Ahmadi Ahmadi Azi Wardiana Bambang Ispri Eko Krisdiono Mardi Winoelyo Rakhmad Susilo Suparno Suparno Wakijo Wakijo