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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.
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Articles 22 Documents
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Search results for , issue "Vol 11 No 1 (2020): International Journal of ASRO" : 22 Documents clear
ANALYSIS AND DETERMINATION OF POSITION BATTALION COMMANDER AAL METHOD WITH PERSONALITY AND METHODS DEMATEL PAPI KOSTICK ANALYTIC NETWORK PROCESS (DFANP) Didit Herdiawan; Agus Setiadji; Avando Bastari; Adi Bandono
JOURNAL ASRO Vol 11 No 1 (2020): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1206.951 KB) | DOI: 10.37875/asro.v11i1.190

Abstract

Indonesian Naval Academy (AAL) is the educational institution that serves to educate Navy officer cadets into future leaders of the Navy to support the main tasks of the Navy in the future. Battalion Commander is a very important position in the organizational structure of the Naval Academy Midshipman educate. In military Commander Regulation no.138/XII/2011 confirms the necessity of each military personnel has soft and hard competencies. Therefore, this study focuses on the analysis and determination of criteria for the post of Batalyon commander of Naval Academy, includes soft and hard competencies and personality using PAPI Kostick, DEMATEL, ANP to get the best commander that is able to realize the basic tasks of the Navy. PAPI Kostick Personality Methods is a personality test on the employment situation. Along with other criteria such as Knowledge, Skills, Health, Phisic test, and Konduite, PAPI Kostick Personality criteria will be examined interrelationships among criteria and sub-criteria therein between using DEMATEL questionnaire. The results of DEMATEL is then drawn into a model of ANP. Furthermore structured questionnaire ANP. Then the results of questionnaires that have been processed, will be used as input in the software Superdecision. The results of the software is the weight of each sub-criteria that can be used in the assessment of the commander of selection . And in the example section assessment , the results of Superdecision software , it can be seen on the ranking of alternative commander’s candidate models have added alternative cluster .Keywords : Soft and Hard Competence, PAPI Kostick Personality, DEMATEL, and Analytic Network Process.
DESIGN OF AUTOPILOT TRACKING CONTROL AT A PROTOTYPE TANK BASED ON ARDUINO Sunarta Sunarta; I Nengah Putra A; Cucuk Wahyudianto; Muhammad Husni Afandi
JOURNAL ASRO Vol 11 No 1 (2020): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (759.522 KB) | DOI: 10.37875/asro.v11i1.216

Abstract

The Indonesian Navy is one elements of the Indonesian nation which has the duty to maintain the unity andunity of the Republic Indonesia. The Indonesian Navy requires a lot of equipment, defense equipment andsupporting equipment. Unmanned Tank Alutsita is one vehicle that can be used as a combat vehicle withoutinvolving troop personnel in the tank that can be controlled remotely through wireless data communication. Thedesign of the location-based prototype tank autopilot control system is a research in answering for thedevelopment of unmanned warfare technology. Prototype unmanned tank using GPS sensor bases, imu andcompass determining the location, orientation and direction of the prototype. The application of the compass asan evaluation of the tank bow course error towards the direction of the destination, while GPS is used as aparameter for determining the location of the destination location. The combination of the two sensors is usedas a base information on the control system on autopilot. From the results of tests that have been carried outobtained manual control systems and autopilot in accordance with the itinerary that has been made. The vehicletank can respond in real time to any location and direction errors, so that corrections can be made to reach thedestination correctly. Weather problems become a barrier factor in getting location data from GPS. During thetest in sunny conditions obtained control results with a location error factor of less than 5 meters.Keyword : Prototype, control, autopilot
DESIGN ANALYSIS OF IMPRESSED CURRENT CATHODIC PROTECTION (ICCP) SYSTEM FOR UNDERWATER STRUCTURE OF INDONESIAN WARSHIP (KRI) Arda Arda Widyaksa; Pompy Pratisna; Wawan Kusdiana; M. Yunus Abdullah
JOURNAL ASRO Vol 11 No 1 (2020): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (419.877 KB) | DOI: 10.37875/asro.v11i1.210

Abstract

In carrying out these basic tasks the Navy relies heavily on the readiness of the Indonesian Warship (KRI),including the readiness of underwater construction in KRI from corrosion attack on sea water. Nowadays, KRIuses Sacrificial Anode Cathodic Protection (SACP) from corrosion attack. Whereas, SACP system has someweakness, such as the lifetime protection is short. The aim of this paper is to the analysis of Impressed CurrentCathodic Protection (ICCP) design of the underwater structure of KRI using computative theory calculation andspecimen test. The results of ICCP design showed that the specimens I required 0.081 Ampere (A) forprotection current, specimen 2 required 0.010 A for protection current, specimens 3 required 0.00251 A. Withpotential protection between -800 mV up to -1100 mV, it described that the ICCP system is reasonable. Theresult of cathodic protection design towards an underwater structure of KRI (TR-40 Type) showed that 1.75 forAmpere (A) and 3.35 volt DC for voltage. The benefit of this paper is a reference standard in the planning of theICCP design at KRI.Keywords: Corrosion, Underwater Structure of Warship, Impressed Current Cathodic Protection (ICCP).
THE ANALYSIS FORMULATION OF THE LOWEST ASTRONOMICAL TIDE (LAT) BASED ON THE TIME OBSERVATION (THE CASE STUDY OF BENOA WATERS) Okol Sri Suharyo; Johar Setiadi; Nawanto Budi Sukoco; Kuncoro Kuncoro
JOURNAL ASRO Vol 11 No 1 (2020): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (505.477 KB) | DOI: 10.37875/asro.v11i1.205

Abstract

According to the definition of International Hydrographic Organization (IHO) M-13 2005, the LowestAstronomical Tide (LAT) is Internationally used as chart datum, which is used as instruction for measuring thevalidation of high water surface in the Hydro-oceanography survey. It is predicted by tide prediction for 18.61years. This research is observed minimized in one year. In determining of LAT, it will be analyzed by the tideConstanta and prediction analysis.The analysis of tide Constanta will be calculated by the Rayleigh numberingmethod (the smallest quadrat), start on tide data observation for one month, two months, three months, fourmonths, six months until twelve months data of tide observation. Afterward, from that analysis results of t ideConstanta, it can be predicted the tide for 18.61 years. From this result, the prediction will be found thedifference of the LAT value of tide data less than in one year with tide data in one year. Then, from thedifference of LAT values can be analyzed at a significant level by using the statistical approach. From the resultof the LAT calculation by using data observation of tide in one year will be got the LAT position that is 43.3 cm.If comparing with LAT value which uses a variety of data less than in one year, it will result in the level ofsignificant differences. In this case, LAT value thas is calculated by data less than in one year cannot beequated with LAT which is used by observation of tide data in one year.Keywords: LAT, Tide Component, and interval of tide observation.
DYNAMIC PROBABILITY OF THE INDONESIAN ARCHIPELAGO UNDERWATER DEFENCE WITH SUBMARINE SONAR Avando Bastari; Benny Sukandari; Joni Widjayanto; Dani Hutabarat
JOURNAL ASRO Vol 11 No 1 (2020): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (753.978 KB) | DOI: 10.37875/asro.v11i1.191

Abstract

This paper study the determination of the number submarine defenses for Indonesian archipelago underwater defenses with probability method approach. In performing these calculations the authors perform the processing of data from various sources, both from the literature, the data from the relevant authorities in this regard Operations staff, Submarine Force with the elements in the form of operating reports, obtained through interviews and from the field. From these data processed probability calculation and the result obtained is inserted into the formula length / width of the waiting area submarine patrol positions further implemented method of calculating the probability to obtain optimal results. The result of this study is to know the total number of submarines are needed to maintain the strategic straits Indonesia as much as 13 submarines. With the percentage of each strategic submarines: 23% Makassar Strait (3 Submarines), the Lombok Strait 15.4% (2 Submarines), Strait of Halmahera 30.77% (4 Submarines), Wetar Strait 15.4% (2 Submarines), Strait Ombai 15.4% (2 Submarines). If there is a dynamic field that can easily be placed in the strait Submarines received threats in accordance with the percentage division. Suppose a threat occurs only in Hot Area I (Makassar Strait and the Strait of Lombok) then placed Submarines strength at 35.4% (5 Submarines).Keywords: Submarine, Probability Concepts, Determination of Total submarine
DESIGN OF THE DATA TRANSMISSION BETWEEN THE EXERSICE SMART MINE WITH GROUND STATION USING LORA Gesit Pratiknyo; M Sigit Purwanto; Erpan Sahiri; Muladiyono Muladiyono
JOURNAL ASRO Vol 11 No 1 (2020): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (695.829 KB) | DOI: 10.37875/asro.v11i1.217

Abstract

Wireless data communication system through communication radio is one of the important points of informationdelivery process in TNI AL, It relates to the process of delivering information on the field that is difficult to obtaincommunication network via internet. The use of portable and strong communications against jammedinterference and other adjacent frequency interference becomes a fundamental necessity. The use of the UHFfrequency communication system is one of the efficient communication, With the high frequency of positivelyresulting in the physical size of the antenna is increasingly smaller. The purpose of designing datacommunication system devices between exercise smart mine and the ground station using Lora. In planning thiscommunication system uses the Lora SX1278 module as a data transmitter (Tx) and receiver data device (Rx).On the transmitter side (Tx) Lora uses the Arduino Mega 2560 microcontroller as the core or brain system. Onthe side of the receiver (Rx) Lora uses Arduino Uno R3 as the process data unit received by the Lora receiver.The main function of Arduino Uno as an intermediary to be able to transfer data to a PC or laptop device as aground station monitoring through USB communication channels. From the design, testing, and discussion ofresearch results during the preparation and manufacture of this final task obtained the results as expected. Thatthe design of data communication systems using Lora can be obtained a maximum range of 200 meters withthe condition of building obstructed. The ability of the Lora SX1278 module to receive data and transmit datafrom the GPS, pressure sensors and acoustic sensors is well received by the ground station, based on the datatransmitted via the Lora SX1278 module transmitter.Keywords: Lora SX1278, Arduino Mega 2560, Arduino Uno R3
HIGH PRESSURE PUMP DAMAGE ANALYSIS MPK MTU 16 V 4000 M 90 SERIES ON KRI PARCHIM CLASS USING SWOT METHOD Sutrisno Sutrisno; Wawan Kusdiana; Anton Nugroho; Abdul Rahman
JOURNAL ASRO Vol 11 No 1 (2020): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.704 KB) | DOI: 10.37875/asro.v11i1.211

Abstract

Hasan Basri-382 Indonesian warhip (KRI) use MTU 16 V 4000 M 90 diesel engine with common rail technologythat uses a High Pressure Fuel Pump. The pump has a vital function because it provides fuel up to a pressureof 1400 bars on the common rail. The problem is that there is pump compilation or damage (leakage), then thefuel pressure at the High Pressure Pump input drops and risks the output pressure of the fuel High PressurePump towards the common rail, where the pressure drops dramatically, so that the fuel pressure is below 4 baror fuel pressure inside the common rail below 700 bar Engine Control Unit (ECU) accepts the engine to stop theengine. The price of the pump is too expensive. In addition, this pump cannot be repaired or in other words itmust be replaced by the new one. Based on the pump for life, it must be replaced every 4500 hours or in onceW5 maintenanc period. But this lifetime schedule has never been approved. Therefore, it is expected to causedamage to the pump so prevention efforts can be made. In addition, the author has also used the SWOTmethod to find the best strategy in finding solutions to the problems of this High Pressure Pump. And of course,these strategies are used for advice at the end of this settlement.Keywords: Common Rail, Damage, High Pressure Pump, Parchim Class, and SWOT Method
ANALYSIS OF UTILIZATION CHLOROPHYLL-A CONCENTRATION DATA FROM REMOTE SENSING IMAGERY TO SUPPORT MARITIME SECURITY OPERATIONS (CASE STUDIES IN THE ARAFURA SEA) Okol Sri Suharyo; Nawanto Budi Sukoco; Johar Setiadi; Eko Kurniawan
JOURNAL ASRO Vol 11 No 1 (2020): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (858.36 KB) | DOI: 10.37875/asro.v11i1.206

Abstract

Indonesia is the largest archipelago in the world with a vast ocean area and the richness of the fish. It allows theoccurrence of crime at sea, for example, is a crime of theft of fish and other marine resources. Indonesia in theregard Indonesian Navy confronted with various obstacles, among others, the limitation of the number of patrolboats that are not proportional to the extent of waters that should be on the cover as well as the limitations ofthe available budget for operational activities in the framework of the implementation of law enforcementoperations related crime at sea. With the limitation of that than required effectiveness and efficiency inoperations to crime at sea can still be implemented and the richness of the sea remains awake.The utilization ofremote sensing satellite technology capable of delivering information quickly with a broad scope. This researchuse the MODIS Aqua Image data Level 2 to detect the distributions of chlorophyll-a concentration which is anindicator of the fertility of the waters of an area the area is closely connected with the fisheries through theimplementations process of bottom-up areas with transparent high fertility rate is an area that's prone to fishtheft crime occurred. From the result of the data processing MODIS-Aqua Satellite image pattern time andlocation of the concentration of chlorophyll-a and verified by VMS data indicate that there is a close relationshipwhere a times and areas with a high concentration of chlorophyll observed a lot of fishing activity, so it is used inthis research can be used as supporting data in determining the direction and timing of the operation inparticular operations against crimes the theft of fish, finally the marine security operations could become moreeffective and efficient and success can be further improved.Keywords: Sea area, chlorophyll-a, effective and efficient.
ANALYSIS OF REPLACEMENT PART TIME INTERVAL DETERMINATION OF CRITICAL IN ENGINE WATER COOLANT PUMP TYPES KRI FPB57 Sutrisno Sutrisno; Abdul Rahman; Bambang Suharjo; Rachmana F Antariksa
JOURNAL ASRO Vol 11 No 1 (2020): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (754.023 KB) | DOI: 10.37875/asro.v11i1.192

Abstract

Maintenance management is required and has a very vital role for a KRI types FPB57, considering the type KRI is one Alutsista Navy who have a high frequency activity, as well as the broad range of operations support capabilities are varied so that the automatic machine is also high activity and in the end reliability will decrease. Methodology Failure Mode Effects and Criticality Analysis (FMECA) is a widely recognized tool for the study and analysis of the reliability of the design or process. Many authors in the field have emphasized specifically the usefulness of this method and its limitations. At this writing considering the lifetime of the machine and the elements therein specifically the components of the water coolant pump has had a lifetime of more than 20 years, because it can be said that the components have entered a critical period. Based on the steps Failure Mode Effects and Criticality Analysis (FMECA) through the calculation of Risk Priority Number (RPN), so we can determine the critical components of acquired 9 of 19 chances damage that has critical component is Angular Bearings, Cylindrical Bearings, Spacer Ring, Water Seal, shaft Seal, Seal Slip Ring, Impeller, O'Ring and shaft. These components if damaged can lead to engine breakdown. From the optimization results indicate that the component replacement Cylindrical Bearings have the fastest time, ie 98 days. While the replacement of components with the longest time, which is a component Impeller 134 days. Besides obtain the most optimal replacement time of each component, also produced the cost of replacement is effective, it is proved by the value of the optimal CBR. CBR value for all types of components is less than 1 (CBR <1).Keywords : FMECA, Risk Priority Number, Reliability, Replacement Intervals,CBR.
DESIGN OF SMARTSCHOOL WEBCAM SECURITY SYSTEM USING RASPBERRY PI WITH MOTION DETECTION IN SMK PGRI SUKODADI Firman Yudianto; Fajar Annas Susanto
JOURNAL ASRO Vol 11 No 1 (2020): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.576 KB) | DOI: 10.37875/asro.v11i1.218

Abstract

Currently a low cost security system is needed and easy to apply especially at educational institutions that willimplement smart school and industry 4.0. Needed devices are raspberry pi and web camera. Raspberry pi willonly save moving images taken from the web camera. Because by storing an image whose file size is not toolarge will ease the performance of the server. In this study, a design for the raspberry pi based motion detectionsystem will be applied at SMK PGRI Sukodadi Lamongan Regency which has not have security system. Thissystem will save the file in the form of an image that will be put together into a moving image that looks like avideo that will displayed in a LED monitor.Keywords: smart school, motion detection, moving image.

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