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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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DESIGN OF MANIPULATOR ROBOT IN UNMANNED GRENADE TAMER (UGT) Ayip Rivai Prabowo; Endro Prasetijoadi; Dueng Deriva; Wawan Kusdiana
JOURNAL ASRO Vol 11 No 03 (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 | DOI: 10.37875/asro.v11i03.318

Abstract

Low safety factor in the Standard Operating Procedure (SOP) in handling grenades that fail to explode at the training location can be fatal for personnel and instructors. In a previous study, a stick manipulator was designed. However, this tool has disadvantages because the operator is too close to explosives. By considering the security of personnel, the authors make "Design Robot Manipulator Build on Unmanned Grenade Tamer (UGT)". This tool is used to assist trainers and instructors in the implementation of laying explosives as a procedure for handling grenades that do not explode properly in position. The mechanism of this tool is made to complement the base tank that is driven by a robot remote control system that moves using a servo motor as an actuator. The total length of the horizontal arm stretch is 780 mm and 795 mm for the vertical stretch. Arm foundation is designed capable of rotating as far as 120⁰. Link 1 moves 150 °, link 2 150 °, Link 3 1801, and wrist roll 90 °. The force acting on link 1 is 16.758N in the direction of the y-axis parallel force, torque is 5.5 Nm and with an angular acceleration of 142rad / s². On the link 2 force of 16.66N, the direction of the force is parallel to the y axis, torque of 9.4 Nm and angular acceleration of 496rad / s². And on the 3 link force of 14.7N of torque of 3.3 Nm and angular acceleration of 293rad / s². The gripper gripping force is 1,158 kgf which is driven by a servo motor with a minimum torque of 5.42 Nm. Keywords: Robot arm, Torque, Gripper
ANALISA PERANCANGAN SISTEM INSTALASI BAHAN BAKAR UNTUK MEMENUHI KEBUTUHAN KRI DI MAKO ARMATIM Sutrisno Sutrisno; Yudi Handoko; Heru Mirwanto
JOURNAL ASRO Vol 7 (2017): Jurnal Analisis Sistem & Riset Operasi
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

Sistem instalasi bahan bakar mutlak diperlukan dalam rangka mendukung KRI untuk melaksanakan operasi. Kondisi dilapangan saat ini Mako Armatim belum memiliki suatu sistem instalasi bahan bakar. Selama ini untuk mendukung KRI dalam melaksanakan operasi menggunakan pipa instalasi bahan bakar milik Pertamina yang langsung di distribusikan dari bunker Pertamina sendiri. Akibatnya TNI AL menjadi sangat bergantung kepada kinerja Pertamina dan ini cukup menghambat. Karena itu penulis memiliki suatu gagasan untuk merancang suatu sistem instalasi bahan bakar yang harus dimiliki oleh TNI AL terutama di wilayah kerja Koarmatim. Dalam tugas akhir ini terlebih dahulu dilakukan perencanaan sistem instalasi pipa bahan bakar dimulai dari bunker, perpipaan, fitting serta support sebagai pendukung dari instalasi berdasarkan standard suatu desain instalasi pipa dengan kapasitas aliran 100 kL/jam. Tahap berikutnya adalah perhitungan Head yang meliputi Head loss sepanjang pipa karena gesekan antara bahan bakar dengan permukaan sepanjang pipa serta Head loss akibat adanya fitting pada instalasi sehingga akan didapatkan nilai Head total instalasi. Selain perhitungan secara manual juga dilakukan perhitungan secara numerik dengan menggunakan software pipe flow expert v5.12. Langkah selanjutnya adalah menentukan daya yang dibutuhkan baik pompa maupun motor untuk mengatasi head instalasi dan kapasitas aliran yang dirancang serta melakukan pemilihan pompa yang sesuai. Kata kunci: Sistem instalasi Bahan bakar, Head loss, software pipe flow expert v5.12
THE DEVELOPMENT STRATEGY OF INDONESIAN NAVAL HUMAN RESOURCES UNIT USING SWOT ANALYSIS AND INTERPRETATIVE STRUCTURAL MODELLING Mukhlis Mukhlis; Cahyanto Cahyanto; Ikhwan Syahtaria; Adi Bandono
JOURNAL ASRO Vol 12 No 01 (2021): 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 | DOI: 10.37875/asro.v12i01.388

Abstract

ABSTRACT Lapetal is an organization within the Indonesian Navy that is tasked with carrying out Navy recruitment. With the increasing number of duties and responsibilities of Lapetal and seeing the current condition of Lapetal, it is necessary to make efforts to develop Lapetal in the future. The purpose of this research is to identify the factors that influence in determining the Lapetal development strategy, determine the alternative strategy for Lapetal development, and produce a roadmap of the selected alternative strategies for Lapetal development. This study uses an integrated SWOT analysis and Interpretative Structural Modeling. SWOT analysis is used to formulate and provide alternatives in Lapetal development strategies. ISM is used to determine the priority order of the selected strategy which is then applied in making the roadmap. Based on the results of the SWOT matrix analysis, the SO Strategy consists of 6 (six) strategic steps, the ST Strategy consists of 5 (five) strategic steps, the WO Strategy consists of 8 (eight) strategic steps and the WT strategy consists of 4 (four) strategic steps. Based on weighting using the EFAS and IFAS matrices, the chosen strategy is the WO Strategy, so that the WO strategy becomes the first alternative. Based on the results of the classification of elements in the WO strategy, there are 4 (four) levels of hierarchical structure. In this hierarchical structure, it can be seen that the (WO5) and (WO6) sub-strategies are at level IV. Then the sub strategies (WO3) and (WO4) are at level III. At level II it consists of 3 (three) sub strategies, namely (WO1), (WO2), and (WO7). At level I, it is the sub strategy (WO8). The output of the SWOT and ISM analysis process in determining the Lapetal development strategy is a map or roadmap implemented in a strategic plan which is divided into five-year programs. Keywords: Lapetal, Development Strategy, SWOT, ISM, Road map
DESIGN OF GPS AND COMPASS HELMET VISUAL DATA USING MICROCONTROLLER FOR MARINE FORCE OF INDONESIAN NAVY Endin Tri Hartanto; Erpan Sahiri; Agung Gunawan; Muhammad Sigit Purwanto
JOURNAL ASRO Vol 11 No 03 (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 | DOI: 10.37875/asro.v11i03.306

Abstract

The Marines are a component of the combat forces owned by the Navy. In carrying out their duties as infiltration forces and landing forces, sophisticated equipment is needed to support each movement in terms of knowing the position of coordinates in the form of latitude longitude and compass direction to facilitate the movement of troops in carrying out operational tasks. For this reason, a tool was made to visually know the position of the latitude and longitude of the compass, making it easier for troops to carry out their duties both on the training ground and on the battlefield. This tool is in the form of a Design Combat Helmet for Visual Data Viewer GPS and Microcontroller-based Compass for the Navy Navy. This tool uses Arduino Mega Pro Mini 2560 as a microcontroller, V.KEL 2828U7G5LF as a GPS module, HMC5883L as a Compass module and Wemos Oled LCD 64x48 0.66 "as an analog data viewer. This tool has a working principle like Google Glass that can display data visually. How it works in order to display data visually is to use the reflection of a small mirror that will be enlarged using a convex lens or loop lens and then transmitted the reflection to a visual viewer that is placed in front of the eye. In order to get data in the form of latitude longitude and compass direction alternately a push button is used which is designed as a data selector switch or counter. In testing, this tool proved to be accurate in taking GPS data and compass direction after compared with equipment that has the same function. For the V. KEL2828U7G5LF GPS Module compared to FURUNO GPS and Google Map, while for the HMC5883L Compass module compared to the Android Compass Application. Keywords: GPS data, Compass, Visual Combat Helmet
DISTRIBUSI SIFAT MEKANIK SEBAGAI AKIBAT LAKU PANAS YANG BERBEDA PADA MATERIAL MILD STEEL GRADE A DI KRI NALA-363 Sutrisno Sutrisno; Chris Rinaldi; Agung Budi Kurniawan
JOURNAL ASRO Vol 5 (2016): Jurnal Analisis Sistem & Riset Operasi
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

Pada tahun 2009 yang lalu KRI Nala – 363 yang merupakan kapal perang tipe Korvet TNI Angkatan Laut mengalami kebakaran di Laut Jawa. Prosedur pemadaman kebakaran di kapal telah dilaksanakan, mulai dari pemadaman dengan menggunakan CO2 Central, APAR (Alat Pemadam Api Ringan), sampai dengan menggunakan Hydrant. Kejadian tersebut memakan waktu kurang lebih 1 jam. Dari kejadian tersebut, maka timbul permasalahan apakah plat yang telah mengalami kebakaran tersebut masih layak digunakan atau tidak. Dari permasalahan diatas, maka dilakukan sebuah simulasi dengan menggunakan Heat Treatment material yang sama dengan material plat lambung KRI Nala – 363 yang terbakar, yaitu material Mild Steel Grade A. Untuk memperoleh hasil yang optimal, maka dalam penelitian ini akan divariasikan besarnya waktu penahanan (Holding Time) yaitu 10 menit, 30 menit dan 60 menit serta variasi media pendingin yaitu udara, oli bekas, busa pemadam, dan air laut. Hasil pengujian kekerasan Brinnell menunjukkan bahwa spesimen awal mempunyai nilai kekerasan 151 HB. Setelah mengalami proses laku panas, ternyata spesimen yang mendapatkan quenching air laut mempunyai nilai kekerasan yang paling tinggi yaitu 222 HB untuk waktu tahan 10 menit, 151 HB untuk waktu tahan 30 menit, dan 199 HB untuk waktu tahan 60 menit. Sedangkan untuk spesimen yang mendapatkan quenching udara, oli bekas, dan busa pemadam nilai kekerasan relatif sama dengan spesimen awal. Data ini bersesuaian dengan hasil uji tarik, yang menunjukkan spesimen yang didinginkan dengan air laut mempunyai Tensile Strength yang paling tinggi. Sehingga spesimen yang mendapatkan quenching menggunakan air laut tidak dapat dipergunakan lagi, karena sifat mekaniknya berubah secara signifikan dibandingkan spesimen awal. Kata kunci: Holding time, quenching, heat treatment/laku panas, metalografi test, ferrite, pearlite
MODELING THE LEVEL OF OPEN UNEMPLOYMENT IN CENTRAL JAVA WITH MULTIVARIATE ADAPTIVE REGRESSION SPLINES (MARS) APPROACH Erma Oktania Permatasari; Firda Nasuha; Carlos L Prawirosastro
JOURNAL ASRO Vol 12 No 01 (2021): 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 | DOI: 10.37875/asro.v12i01.382

Abstract

The level open unemployment is a value that shows the number of working-age population who looking for work, is preparing a business, feels impossible to get a job or already have a job but have not started working and often used for measured employment. Like at Central Java has increasing the total population at 2014 and have high total investation whereas should be can getting more employment, but actually still give high unemployment about 996.344 population at 2014. So that, in this research used nonparametric regression approach which multivariate adaptive regression splines (MARS) for modeling the level open unemployment in Central Java at 2014 because the level open unemployment in Central Java predicted influence by some factors. This research resulted in the best modeling for level of open unemployment in Central Java Province with value of GCV minimum that obtained at 0,396 with R-square at 86,5 percent as well as the predictor variables were entered into the model as much as three, namely the total population with interest rate of 100 percent, the minimum wage with interest rate of 41,955 percent, and the total working population with interest rate of 39,547 percent. Keywords: MARS, Nonparametric regression, Level of open unemployment
ANALYSIS OF SAFETY SYSTEM RELIABILITY KI HADJAR DEWANTARA MAKO KODICLATAL BUILDING TOWARDS FIRE HAZARDS PREVENTION Dodiek Alfianzi; Ikhwan Syahtaria; Udisubakti Cipto Mulyono; I Made Jiwa Astika
JOURNAL ASRO Vol 12 No 02 (2021): 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 | DOI: 10.37875/asro.v12i02.397

Abstract

Designing a fire prevention inspection system in buildings is very necessary, to determine the level of reliability. The fire prevention management system uses the following criteria: precautionary measures and preventive supervision against fire hazards. The assessment of the system design is carried out by means of a questionnaire for respondents who understand / are experts in fire problems, and the application of the system design uses direct surveys and questionnaires to the building manager. The assessment is carried out at the smallest level. Analysis of the building reliability inspection system in fire prevention using the Analytical Hierarchy Process (AHP) method, the criteria used are: prevention, limitation and extinguishing against fire. The fire prevention management system uses the following criteria: precautionary measures and preventive supervision against fire hazards. The results of the reliability inspection of the Ki Hadjar Dewantara Mako Kodiklatal building in Surabaya with a value of 94.06% indicated that the reliability system was in the "Less Reliable" category for fire hazard prevention. Keywords: Inspection, fire prevention, reliability.
THE EFFORTS TO IMPROVE THE QUALITY OF EDUCATORS IN NAVAL TECHNOLOGY COLLEGE (STTAL) ENVIRONMENT TO EARN EXCELLENT SOLDIER TECHNOCRATS Edy Widodo; Okol Sri Suharyo; Anton Nugroho
JOURNAL ASRO Vol 10 No 3 (2019): International Journal of ASRO
Publisher : Indonesian Naval Technology College - Sekolah Tinggi Teknologi Angkatan Laut - STTAL

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Abstract

Naval Technology College (STTAL) is an element of implementing and fostering a central implementing agency which is located directly under the STTAL Commander. STTAL has the main task of assisting Chief of Naval Staff in carrying out the required education for marine science and technology high schools and fostering all levels of its strength including its organic supporting facilities and infrastructure to support the main tasks of the Navy. For improving STTAL's world-class reputation, a development concept is needed. The development concept includes education, research, community service, human resources, infrastructure and facilities as well as institutional capacity. However, Human Resources (HR) plays a key role in a university, namely lecturers or educators and students. Lecturers or educators play a role in human resource development. Several efforts can be made to improve human resources, namely by increasing the qualifications of lecturers and improving the academic or research abilities of lecturers with the concept of training or mentoring, including incentives or grants. Efforts to improve the quality of educators and education personnel cannot be separated from the following important aspects, namely salaries and welfare standards that are adequate for their lives, qualification standards, Keywords: Human Resource, Naval Education, and Naval Technology College (STTAL).
RESOLUTION DECISION-MAKING TO INCREASE THE ROLE OF THE UNITED NATIONS FOR WORLD PEACE Edwin Edwin
JOURNAL ASRO Vol 12 No 02 (2021): 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 | DOI: 10.37875/asro.v12i02.398

Abstract

The United Nations (UN) was founded on October 24, 1945 or after World War II ended. At the time of its establishment, the UN consists of 51 member countries and continues to grow until now it has 193 members. The birth of the UN was motivated by the failure of The League of Nations because it could not realize the desire of its founders to create peace throughout the world by preventing war. After World War I, it turned out that World War II was still followed. The UN is considered successful in preventing a widespread war so that until now there has been no World War III. However, in the current situation, wars in several parts of the world have recurred, such as in Syria, Palestine, Azerbaijan and others. The existence of the UN as a universal organization that maintains peace is again being questioned. The ability, especially the Security Council, as one of its organs to prevent war, needs to be improved. Keywords: The Security Council, UN Charter, Veto
CONCEPTUAL MODEL OF THE INFLUENCE OF BORDER CULTURE ON MARITIME POLICY AND THEIR IMPACT ON NATIONAL DEFENSE Maniur Pane; Usep Suhud; Dedi Purnawa; Choirul Anwar
JOURNAL ASRO Vol 12 No 02 (2021): 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 | DOI: 10.37875/asro.v12i02.399

Abstract

Historical facts show that in their heyday, the kingdoms in the archipelago such as Majapahit and Sriwijaya were maritime kingdoms with enormous power. With the ability to project their military power on and through the media of the sea, the two great empires were able to control the entire archipelago and even abroad. Although the government has declared Indonesia as the world's maritime axis, in its implementation there are several obstacles and among them are related to the culture of border communities who still do things that are contrary to the laws and regulations in Indonesia. The object of the research in this study is focused on the culture of the Indonesian people who are on the border area of ​​Indonesia and the Philippines in the province of North Sulawesi, which has hundreds of years and for generations, has a relationship with the Filipinos. So that by examining the variables related to the culture of border communities, it will be possible to determine the best maritime policy that can have positive implications for Indonesia's national security. This study aims to obtain a conceptual model that can present the cultural influence of border communities on the Indonesian government's maritime policy and its implications for Indonesia's national security, this model is needed as a basis for determining maritime policies that can have positive implications for strengthening Indonesia's national security. The conceptual model and framework are based on quantitative descriptive analysis method by describing the relationship between the variables and the indicators of each variable. The results of the study show that there is a significant influence between X1 (social culture of border communities) and Y1 (Maritime Policy), there is no significant effect between X2 (Economic activities of border communities) and Y1. Keywords: Social culture, economic activity, illegal activities, maritime policy, national security.

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