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INDONESIA
ASRO JOURNAL - STTAL
Published by Sekolah Tinggi Teknologi Angkatan Laut
ISSN : 24607037     EISSN : -     DOI : -
Core Subject : Science, Engineering,
Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering
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.
Arjuna Subject : -
Articles 288 Documents
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SECOND NAVAL FLEET COMMAND DISINFOLAHTA INFORMATION SYSTEM NETWORK COMMUNICATION PROCEDURE FOR SUPPORTING THE NAVAL TASK Adi Widodo; Chairul Imron; Sutrisno Sutrisno; Zainal Syahlan
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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Abstract

Disinfolahta’s second naval fleet command has the Main task of assisting with the field of development, data collection, and processing as well as presenting information, research, and development within the Koarmada II environment and acting as an information technology service center. Telegraphic communication radio within the Indonesian Navy is used for long-distance communication between ships, aircraft, and international shore radio. RTG Telegraphic communication radio uses international Morse signs, Q codes, and Z code procedural signs to convey information or news. The application of Radio Communication Telegraphy is very vulnerable to information theft. Important information conveyed from ship to ship, ship to aircraft, or to shore radio or vice versa can be accessed publicly. Information system security defense at Disinfolahta Koarmada II has not shown a level of efficiency and effectiveness, due to the absence of a special section in the field of information system security issues related to data transactions in communication networks. Improvement or improvement of information security is needed which plays a role in maintaining the confidentiality of information. Increasing the security and confidentiality of information is very necessary so that important information that is distributed is not known by unauthorized parties. This study plans a communication protocol scenario using the Mavlink and AX2.5 communication protocols. Each scenario will be run using a simulation to get network performance. The results of network performance measurements will be modeled using a dynamic system to get the best communication protocol as a proposal in order to improve the information security system at the Second naval fleet command. Keywords: RTG, Mavlink, AX2.5, network performance, communication protocols
QUANTITATIVE RISK ASSESSMENT OF THE AH-140 SHIP-BUILDING PROJECT AT PT. PAL INDONESIA TO SUPPORT THE DUTIES OF THE INDONESIAN NAVY Simon Fuad Sonda; Budi Santoso; Ahmadi Ahmadi; Richard Martin
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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Abstract

The AH-140 Shipbuilding project is a challenge for PT.PAL as part of the Indonesian Defense Industry Holding under PT. LEN Industry is under a situation of uncertainty, which will bring up both positive and negative risks. Negative risks that can cause project delays should be mitigated to prevent delays. This thesis has the aim of knowing the interaction between risks and obtaining mitigation recommendations for the implementation of the AH-140 Shipbuilding project. Bayesian Network is used to determine the level of project risk interaction, as well as to model scenarios by providing certainty on the risks that have an effect. AHP is used to assess the chance of occurrence at Independence risk and ANP is used to assess opportunities from Dependence risk. In the study, it was found that there were 22 risks. risk (E14) Quality of work, risk (E20) Cost overrun, and risk (E7) material shortage. The influence of risk variables that have the potential to occur in the AH-140 Shipbuilding project, causing potential delays in ship launching at a Low-risk level with actual conditions of 43%, Medium risk Level with actual conditions of 31%, and High-risk level with actual conditions of 26%. This is influenced by the risk (E14) of the quality of work, the risk (E20) of cost overrun, and the risk (E7) of material shortages. So that get some recommendations in response to risks that have the potential to occur. Keywords: Project Risk Management, Bayesian Network, AHP, ANP.
OPTIMIZING THE ASSIGNMENT OF KRI AS AN AMMUNITION AUXILIARY SHIP IN AMMUNITION DISTRIBUTION TO SUPPORT THE DUTIES OF THE INDONESIAN NAVY Adi Wirasmo; Udisubakti Cipto Mulyono; yoyok Nurkarya Santosa; Azi Wardiana
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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Abstract

The distribution of ammunition is not optimal because there is only one Arsenal and must serve Navy Bases spread throughout Indonesia and have been specially transported ammunition so the process of distributing ammunition depends on the element of the title. Selection of the right type of KRI in an assignment as an ammunition auxiliary ship using the Analytic Network Process (ANP) method approach gave rise to two main criteria, namely the criteria of operational requirements with five sub-criteria: safety, geographical conditions, mobility, ship feasibility, sailing resilience, and technical requirements criteria with five sub-criteria: machinery, navigation, platform safety. equipment and also sensors. For ammunition,and distribution errors use the Vehicle Routing Problem method. Route optimization is approached with the Saving Matrix method. The results of this study are an alternative priority for selecting ships in assignments as ammunition auxiliary ships to carry out the distribution of ammunition throughout the Navy Base. The best alternative based on the main criteria and sub-criteria is the type of personnel transport auxiliary ship (BAP) with a score of 0.341260. Sequentially, the alternative priorities in the selection of ammunition auxiliary ships are BAP Type Ships, BRS Type Ships, LST / M Type Ships, AT Type Ships, and the last priority is MA Type Ships. Meanwhile, the Saving Matrix method is able to improve the ammunition distribution route into two routes so as to reduce distribution operational costs. The use of the Nearest Insert and Nearest Neighbor methods was able to shorten the distance traveled by the ship from 13004 Nm to 9667 Nm. Keywords: Analytic Network Process (ANP), Vehicle Routing Problem (VRP), Saving Matrix, Nearest Insert, Nearest Neighbor
PLANNING MODEL TOTAL REQUIREMENTS OFFICER PERSONNEL FOR SUPPORTING THE NAVAL TASKS Dian Muhtar Budiasa; Budisantoso Wirjodirdjo; Ahmadi Ahmadi; Mukhlis Mukhlis
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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Abstract

As the main component of the defense and security of the maritime dimension of the state, the Indonesian Navy must be able to carry out organizational tasks effectively and efficiently so that the success of achieving organizational goals can be achieved. The main resource needed to support the implementation of the tasks of the Indonesian Navy is Human Resources or personnel. With an important role as leader/superior in decision-making and policy-making as well as the organizational driving force, officer personnel planning is urgently needed in manning the entire spectrum of office space assignments in a timely, quality, quantity, and place manner. This planning is a form of implementation within the Indonesian Navy officer personnel development system with complex and dynamic system characteristics. Given these system characteristics, the researcher uses a system thinking approach analysis with the aim of articulating the problem in the form of a causal loop diagram model and then integrating it into a dynamic system simulation model with the aim of obtaining the best policy scenario formulation from the simulation results of the planning model for the number of officer personnel needs at rank strata. "C" to "H", so that the behavioral conditions of a stable personnel development system are still achieved regarding the elements of the number of personnel needs in supporting the continuation of the implementation of the duties of the Indonesian Navy effectively and efficiently in achieving organizational goals. Keywords: complex, dynamic, personnel coaching system, system thinking, dynamic system
ANALYSIS OF HEALTH SERVICE QUALITY ON PATIENT SATISFACTION IN IMPROVING XYZ HOSPITAL SERVICES Heriyanto Heriyanto; Iwan Vanany; Imade Jiwa Astika; Sutrisno Sutrisno
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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Abstract

XYZ Hospital is a type c military hospital located in Surabaya and has the function of support and optimal health services for military personnel, military families, and the general public. In its implementation, there are several problems related to health services including a decrease in the number of patient visits, a lack of human resources, and long patient service times. Therefore, it is necessary to analyze the quality of health services in improving XYZ hospital services. The method approach used covers Service Quality (Servqual) is used To look for performance gaps, Importance Performance Analysis (IPA) used to know the level of suitability perceptions and expectations of health services hospitals, and Quality Function Deployment (QFD) through the house of quality (HOQ) for determining priority a must repair done. Based on research results of 99 respondents show of 5 dimensions Servqual obtained a valuable performance gap positive namely 3 attributes E1-X7, E4-X10, A3-X27 and a value negative namely 27 attributes R2-X20, R4-X22, RE1-X12, RE3-X14, R5-X23, A5-X60, A1-25, T4-X4, A2-X26, T1-X1, RE5-X16, R3-X2, RE7-X18, T5-X5, RE2-X13, T3-X3, E5-X11, R1-X19, R6-X24, T2-X2, A4-X28, T6-X6, RE6-X17, A6-X30, RE4 -X15, E3-X9 and E2-X8. After analysis with the IPA, the method obtained Quadrant I 10 attributes that is T5-X5, RE1-X12, RE3-14, RE5-X16, RE7-X18, R4-X22, R5-X23, R2-X20, A1-X25, A5- X29 being priority repair service health, quadrant II 6 attributes that show keep it up performance T1-X1, T4-X4, RE4-X15, R1-X19, A2-X26 and A6-X30 quadrant III 8 attributes considered not enough important for patients and services received considered ordinary and quadrant IV 6 attributes. considered not enough important for patients however services provided too much. Analysis next uses the QFD method to create HOQ to determine the originating voice of the customer from IPA analysis in quadrant I and Quadrant II, as well as response technical repair to service such, so, got 3 responses technical as priority repair. First, 15% target responsiveness to the patient service process done with good Health training and training on an ongoing basis scheduled, both 13% target responsiveness to the use of system information management hospital, and the third target is 11 % reliability to Settings timetable practice doctor.
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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Abstract

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
SELECTION OF THE LOCATION OF UNMANNED AERIAL VEHICLES LAND BASE FOR SUPPORTING THE TASK OF THE INDONESIAN NAVY Helmi Amrullah; Chairul Imron; Joko Purnomo; Cahya Kusuma
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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Abstract

The Indonesian Archipelagic Sea Lanes (ALKI) which connects the Indian Ocean region with the Pacific Ocean and East Asia with Australia, has enormous consequences for efforts to implement its safeguards. An alternative is needed to optimize the current detection system. One of them is by utilizing the latest technological developments through the use of Unmanned Aerial Vehicles (UAV). The UAV capability for security and defense purposes at sea needs to be developed as an Integrated Fleet Weapon System (SSAT) to fulfill the functions of tactical reconnaissance and maritime surveillance (Surveillance). The use of the UAV can also increase strength and complement the needs of maritime patrol aircraft (Maritime Patrol Aircraft / MPA) which so far have not been fulfilled quantitatively in covering all Indonesian national jurisdiction waters. The ALKI I area is in the working area of Fleet Command I (Koarmada I). In order to optimize the placement of the ScanEagle UAV in the ALKI I area, it is very important to know the criteria for determining its location. This is also due to the limited number of ScanEagle UAVs and the large area that must be covered by these UAVs. By obtaining the location criteria for the ScanEagle UAV Landbase, it is hoped that it will make it easier to map ScanEagle placement locations at Indonesian Navy bases in the ALKI I area. ANP and TOPSIS methods. The criteria for determining the location of the UAV consist of geographical location, weather conditions, vulnerability and security as well as logistical facilities and support, with sub-criteria mountains, tall buildings, plains, sunny cloudy, rain, territorial violations, piracy crimes, smuggling, SAR, airport, ports, spare parts, maintenance, fuel and electricity availability. Based on the results of the analysis and discussion of determining the location of the selected UAV Batam Naval Base. Keywords: UAV, SSAT, Surveillance, ScanEagle, ANP, TOPSIS
OPTIMIZING THE SCHEDULING OF THE SURABAYA HEALTH INSPECTION BUILDING CONSTRUCTION PROJECT Hendry Apriyanto; Suparno Suparno; Eko Krisdiono; Rakhmad Susilo
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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Abstract

Projects can be said to be a success or a failure caused by ineffective planning and control, so project activities fail. so there will be delays, decreased quality, and increased implementation costs. The Critical Path Method abbreviated CPM method and goal programming can be applied to manage project completion time more efficiently and effectively. To be able to reduce the impact of project delays and cost overruns through a crash calculation mechanism with three alternative controls; additional labor or overtime work. In this study, the total project age was 277 calendar days, while the project deadline was 284 calendar days, thus the project was delayed for 7 calendar days with a total fine of Rp 25.242.944.400 and a penalty cost is 1/1.000 for the sum of the contract. Based on the data analysis and discussion that has been carried out in this study, the conclusion that can be drawn from his study is the number of days that can be completed in this project using the CPM scheduling method is 257 days. However, without using this method, the project completion time would take 284 days. In addition, the company can save costs of Rp. 181,682,772 while avoiding penalty fees due to project delays. while using goal programming optimization, the optimal time duration is 250 days with a cost efficiency of Rp. 246.092.991. So that by applying the calculation to the CPM method, the company can perform project efficiency for 27 days while using goal programming optimization have project efficiency for 34 days simultaneously being able to streamline the budget by using network planning Keywords: Project Scheduling, CPM, Goal Programming, Critical Path, Time Acceleration
DEVELOPMENT STRATEGY TO IMPROVE THE QUALITY RESULTS OF EDUCATION IN THE ADMINISTRATIVE SUPPORT OF THE NAVAL EDUCATION CENTRE Khristian Gunawan Aden; Udisubakti Cipto Mulyono; Adi Bandono
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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Abstract

The Indonesian National Armed Forces as the front line of national defense must implement policies that are inline with those conveyed by emphasizing the ranks in order to carry out appropriate budgetary activities, especiallythose that are right on target for predetermined uses. The use of the budget must optimize the control side ofactivities, the fulfillment of the procurement of goods and services as well as the maintenance of defenseequipment, the fulfillment of targeted supplies, as well as personnel management, and updating of educationalinstitutions. The Navy Education Centre For Administrative Support is an instructive institution for the Naval forcewhich is the center for authoritative help instruction and has an imperative part in regulatory help instruction. Thereason for this consideration was to decide on elective techniques for creating authoritative help instruction centersin arrange to move forward the quality of prepared warriors utilizing the SWOT strategy. The comes about ofdistinguishing proof are 10 (ten) internal variables with 4 (four) strength variables and 6 (seven) weaknessvariables, and 10 (ten) external components with 3 (eight) opportunity components and 7 (seven) Threatcomponents. The chosen strategy may be a strength-threat procedure that suggests maximizing the change ofdebilitating variables by utilizing qualities within the frame of concentric expansion, with 4 (five) ST methodologiesproduced, and then weighting all of obtain strategy with the Borda method and making the roadmap from prioritystrategy. Keywords: SWOT, Borda, roadmap, education, administrative support
MODEL OPTIMIZATION ASSIGNMENT AIRCRAFT IN THE ALKI II REGION BKO OF THE SECOND FLEET COMMAND II TO SUPPORT THE TASKS OF THE INDONESIAN NAVY Mardi Winoelyo; Chairul Imron; Adi Bandono; Mohammad Syaifi
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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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 TNI AL Patrol Elements and the budgetprovided by the state as well as the need for securing the maritime territory of the Republic of Indonesia hasresulted 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 operationalcosts in security. Ships and aircraft carry out patrols in randomly determined sectors. This optimization modelidentifies the related decision variables through open interview discussions, then sets the objective andconstraint functions as an optimization model to be developed. The application of the Goal Programmingmethod can be formulated by determining the decision variables related to the assignment of aircraft where theobjective function is to calculate the maximum radar coverage area in the operating sector and minimizeoperating costs. After optimizing the coverage area, there was an increase of 2.5% and a decrease in operatingcosts of 28%. So that, Mamdani's Fuzzy Logic method is used to determine the output of certain radar coverageareas. In this case, it requires the help of Matlab software on the Fuzzy Inference System (FIZ) toolbox to solvethis problem. Keywords: Maritime Patrol Aircraft, Operating Costs, Goal Programming, Fuzzy Inference System

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