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Jurnal Teknologi dan Riset Terapan (JATRA)
Published by Politeknik Negeri Batam
ISSN : 26854910     EISSN : 26854910     DOI : -
Core Subject : Science, Engineering,
Aerospace Engineering Computer Science & IT Electrical & Electronics Engineering Engineering Mechanical Engineering
Jurnal Teknologi dan Riset Terapan (JATRA) is scientific, peer-reviewed and open access journal managed and published by Research and Community Services, Politeknik Negeri Batam. The journal is published two times a year on June and December. Jurnal Teknologi dan Riset Terapan (JATRA) provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 7 Documents
 1 
Search results for , issue "Vol 3 No 2 (2021): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2021" : 7 Documents clear
Perbandingan Hasil Koordinat Kerangka Pemetaan Menggunakan Metode Bowditch Poligon Tertutup Dengan Metode Adjustment Triangulated Quadrilateral Farouki Dinda Rassarandi; Oktavianto Gustin; Putra Putra
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 3 No 2 (2021): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v3i2.2990

Abstract

The basic mapping framework is divided into two types: the horizontal framework (planimetric) and the vertical framework (height). The basic horizontal framework of mapping varies depending on the selection and usability policy determined by many factors, which as the area, tools availability, and the calculation method. The geodesy field's commonly used basic mapping frameworks are triangulation and polygon methods. A least-squares calculation method or a least-squares triangulation adjustment can be used to obtain the precise map frame coordinate value from the triangulation method measurement results. On the other hand, the polygon method uses Bowditch to solve the problem. The least-squares method (adjustment) is well known as the three methods. There are parameters, conditions, and combinations. The least-squares method of triangulation (triangulated quadrilateral adjustment) can use the conditions or measurements equation either azimuth or angle measurement. The procedure of this equation involves parameter adjustment, where these parameters are the coordinates on a flat surface. This study compares the coordinate result of the enclosed polygon mapping framework between the Bowditch method and the Adjustment Triangulated Quadrilateral method. The coordinates result of the calculations using the Bowditch method provides value better than the adjustment method, where the confidence interval of the standard deviation of the coordinates using this method is around 0.400954085 ft minimum and 1.020967284 ft maximum in the 90% of a confidential level, in the other hand, the adjustment method ranges between 1.112780078 ft minimum and 2.833521575 ft maximum.
Pengujian Sulphide Stress Corrosion Cracking Pada Sambungan Las API 5L X65 dan ASTM A694 F65 Aulia Fajrin; Nugroho Pratomo Ariyanto; Aldyno Heryanda
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 3 No 2 (2021): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v3i2.3029

Abstract

Corrosion is a problem that always occurs in metals in their application to the environment. Although there are already several other substitute materials such as polymers and composites, the use of metals is still very much needed and plays an important role, especially in the oil and gas fabrication industry. Corrosion cannot be avoided but can be minimized because of the nature of the metal that will return to its origin. Metals used in the oil and gas fabrication industry require a material test against stress factors and the environment. The SSCC (Sulphide Stress Corrosion Cracking) test based on NACE TM0316 is a test of material resistance to stress and acidic environments. In this SSCC test, the method used is Four-Point Bending, which means that there are four roller jigs to bend the specimen. The specimens used are API 5L X65 pipe welded joint specimens and ASTM A694 flange. The welding process on this specimen uses the GTAW (Gas Tungsten Arc Welding) process. The specimens tested have several stages, starting from the preparation of the machined material, cleaning, then bending to soaking in an acidic liquid. This aims to determine the indications that appear on the surface of the specimen in the form of cracks in both the weld and the base metal. The test used three specimens with different IPRR welding processes. Specimens 1 and 3 are accepted specimens, while specimen 2 is rejected specimens based on the SSCC DNV Test Procedure, where the acceptance criteria from the MPI results are acceptable if the indication is less than 1 mm in length.
Rancang Bangun Alat Peraga Axial Flow Turbine Dengan Menggunakan Tenaga Electrical Sebagai Media Pembelajaran AMTO James Siregar; Lalu Giat Juangsa Putra; Rizky Pratama Hudhajanto; Dicky Reza Prawira
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 3 No 2 (2021): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v3i2.3113

Abstract

Aircraft maintenance is very important in aviation safety. Therefore, ICAO (International Civil Aviation Organization) strictly regulates the people who can carry out the maintenance process. To be able to become a mechanic or engineer who maintains aircraft, it is necessary to have 3 stages, namely the basic certificate, type rating and AMEL (Aircraft Maintenance Engineering License). Currently in Indonesia there are only 13 AMTO (Aircraft Maintenance Training Organizations) that can issue the certificate. AMTO schools are limited because the facilities required by the authorities are very high and expensive. One of these facilities is a turboprop engine, a type of generator aircraft engine that uses a gas turbine to drive the propeller. The high cost of the training equipment facilities, which can reach hundreds of millions or even billions, gave rise to the idea to make a simple teaching aid about turboprop systems in general, namely the Axial Flow Turbine which applies the concept of a turboprop engine where the propeller can rotate due to mechanical motion from the gear that comes from the DC motor. Manufacture of Axial Flow Turbine components using lathe, and milling. The materials used are iron, plastic, and rubber. The Axial Flow Turbine can produce a maximum rpm of 200 rpm. After passing the maximum limit, the propeller's ability to rotate will decrease significantly. In the end, the Axial Flow Turbine teaching aid can be used as a learning medium, especially the turboprop system.
Pengujian dan Pengukuran Perubahan Coating Liquid Flow Rate dan Coating Time Duration Terhadap Hasil Coating Quality Angle Mesin Diener Tetra 100 Yoga Prisusilo; Ihsan Saputra
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 3 No 2 (2021): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v3i2.3174

Abstract

One of the things that become a benchmark for the quality of a product is that the product complies with specifications and there are no production defects. Diener Tetra 100 machine is used to produce Housing top, Housing Bottom, Rocker switch, Battery door, push-button, and T. Coil. Usually, the Diener Tetra 100 machine product is often rejected due to dirty, incorrect parameter settings, and unacceptable coating heating levels. This research examines the effect of changing the Diener Tetra 100 machine parameters and checking measurements on the coating results. This study aims to obtain the optimal value of the coating liquid flow rate and the coating spraying time (time duration). This research was conducted by varying the parameter settings for coating liquid flow rate, coating time duration, and temperature chamber, where the independent variables were Time duration 10 minutes, 30 minutes, 45 minutes, and the independent variables were coating liquid flow rate, 70 ml/second, 100 ml. /second, 130 ml/second, with the same Temperature Chamber 60oC. Based on the results obtained in this study, found three optimal parameters on the Diener Tetra 100 machine. Among them were is the Coating Time Duration 45 minutes and coating liquid Flow rate 70 ml/second; Time Duration Liquid 30 minutes and Coating liquid flow rate 100 ml/second; Time Duration of Liquid is 10 minutes, and coating, liquid flow rate, is 130 ml/second because the percentage of product rejects obtained from the results of this study is low.
Studi Kekuatan Pressure Vessel Dengan Menggunakan Material SA-106 Grade B dan SA-516-70N Silvia Uli Arta Lubis; Mufti Fathonah Muvariz; Nurul Fadilah; Naufal Abdurrahman Prasetyo; Sapto Wiratno Satoto; Nidia Yuniarsih
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 3 No 2 (2021): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v3i2.3652

Abstract

A Pressure Vessel is a container for storing liquid and gas fluid shaped like a cylinder that can produce pressure from outside or inside. Almost all oil and gas industries often use this object to collect and separate water and oil from offshore exploration. This study aims to determine the strength of a Pressure Vessel and determine which is more economical by comparing two types of materials, namely SA-106 Grade B and SA-516-70N, with the same thickness of 12.7 mm. Simulations are carried out on the shell using SolidWorks software to find out the strength of each material. The data used in this study refer to one of the Pressure Vessels from the company with the basic design following ASME section VIII Div.1 standard 2007, document name "Cartridge Filter C027-S-U13000-01 A / B" and document number 6522 -XXX-C027-ISGP-U40300-MX-4018-00XXX with a design pressure of 10 bar, a design temperature of 121 ° C, an inner diameter of 444.5 mm, a corrosion factor of 3 mm. From the calculations and simulations that have been carried out, the values ​​obtained from the maximum pressure on the SA-516-70N material are 34.10 Bar, and the SA-106 Grade B material is 16.90 Bar. The voltage received from the pressure vessel is based on the analysis of the SolidWorks software with the same value for both materials at 1758 psi / 121 Bar. This study also proved that SA-106 Grade B material is far more economical, with an estimated budget of Rp6,531,951 for one 10m long pipe.
Kualifikasi Welder FCAW-GS Pada Posisi 6G Menggunakan Multiple Code (AWS D1.1, ASME Sec. IX, dan ISO 9606-1) Rafi Julio Putra; Nurul Laili Arifin; Tian Havwini; Nugroho Pratomo Ariyanto
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 3 No 2 (2021): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v3i2.3662

Abstract

Welder qualification is the qualification of a welder or welder that aims to prove the quality of the welder, which is carried out following the rules in international codes/standards such as AWS, API, ASME, ISO, and other codes/ codes/standards. The purpose of this report is to design a welder qualification scheme using three codes/standards at once, namely: AWS D1.1 (2020), ASME Sec. IX (2019) and ISO 9609-1 (2017). Thus, it can minimize costs, time, and the preparation needed to qualify the welder. The methodology used was a literature review to get the similarity of the variables, which will later be used to qualify the welder using the three codes/standards used. After obtaining the required variables, the next step was the implementation of these variables to qualify the welder from the material preparation and welding process to test the weld results. In order to qualify the welder with three codes/standards at once, it was necessary to pay attention to the relationship for each variable used to cover one code with another. If one of the variables cannot be met in one of the codes/standards used, then the welder's qualification using three codes/standards cannot be implemented. The material used in this welder qualification is ASTM A106 Grade B with a material length of 170 mm × 170 mm with a thickness of 18.26 mm and a diameter of 6" (168.3 mm) sch 160. The test methods used were Visual Inspection and Side Bend Test with four samples.
Penanganan dan Analisa Kegagalan Pada Bleed Air Leak Detection System Pesawat Airbus A330-300 di Hanggar 3 PT.GMF AEROASIA Agung Prakoso; Riski Kurniawan; Farchan Mauluddin
Jurnal Teknologi dan Riset Terapan (JATRA) Vol 3 No 2 (2021): Jurnal Teknologi dan Riset Terapan (JATRA) - December 2021
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jatra.v3i2.3714

Abstract

The bleed air leak detection system on aircraft is used to detect a leak in the bleed air duct. This system can detect over heat temperature outside of the duct if there is a leak around the duct. Bleed air leak detection is equipped with a sensing element to detect the rise of temperature because of the leak around the bleed air duct. These sensing elements are installed on the engine pylon, wing and fuselage. The rise of temperature detected by the sensing element can be monitored on the bleed monitoring computer (BMC) and then will be forwarded to the engine bleed switch in the cockpit. Troubleshooting Manual (TSM) Task 36-22-00-810-911-A is used to solve bleed air leak detection system problems. The fault tree analysis method is also used to obtain the possible causes of failure in the bleed air leak detection system. In this study found damage to the sensing element in zone 71 HF. The sensing element has been used for 24 years and 8 months from that set by the manufacturer, which is 25 years, so it is necessary to replace it with a new sensing element. Based on the fault tree analysis results, several possible causes of the bleed air leak detection system failure were obtained, such as electorstatic, short circuit, lost continuity, connector fault, control logic fault, thermistor disconnected, performance degradation, component dislocation, and corrosion.

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