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Teknika STTKD: : Jurnal Teknik, Elektronik, Engine
Published by Sekolah Tinggi Teknologi Kedirgantaraan
ISSN : 24601608     EISSN : 26223244     DOI : https://doi.org/10.56521/teknika.v8i1
Core Subject : Science, Engineering,
Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Teknika STTKD: Jurnal Teknik, Elektronik, Engine adalah jurnal ilmiah yang diterbitkan oleh Sekolah Tinggi Teknologi Kedirgantaraan. Teknika STTKD: Jurnal Teknik, Elektronik, Engine pertama kali terbit pada tahun 2014. Jurnal ini sempat vakum pada tahun 2019, kemudian aktif kembali mulai volume 1 tahun 2020 dan akan terbit 2 volume setiap tahunnya yaitu pada bulan Juli dan Desember.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 187 Documents
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ANALISIS UJI BENDING KOMPOSIT SERAT DAUN NANAS DAN PARTIKEL PASIR BESI DENGAN METODE VACUUM BAGGING Fikri, Moh Afif Fikri; Setiawan, Ferry; Sofiyan, Edy
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1139

Abstract

This study aims to determine the effect of variations in the size of the pineapple leaf fiber frame on the flexural strength and modulus of elasticity of pineapple leaf fiber composites and iron sand. Variations in the size of the pineapple leaf fiber frame used are 5%, 10%, and 15%. The method of making composite specimens uses the vacuum bagging method. Flexural strength testing was carried out using the three point bending method. The results showed that the variation of pineapple leaf fiber frame size had a significant effect on the flexural strength and modulus of elasticity of pineapple leaf fiber and iron sand composites. Test specimens with 15% frame size variation had a maximum flexural strength of 76.9 MPa and a maximum elastic modulus of 639.76 MPa. Test specimens with 10% frame size variation had an average flexural strength of 53.7 MPa and an average elastic modulus of 192.74 MPa. Test specimens with 5% frame size variation had an average flexural strength of 44.3 MPa and an average elastic modulus of 164.04 MPa. The increase in flexural strength and modulus of elasticity of pineapple leaf fiber and iron sand composites with 15% frame size variation is due to several factors, namely: First, the increase in the number of pineapple leaf fibers in the composite. The greater the number of pineapple leaf fibers, the greater the tensile strength and modulus of elasticity of the composite. Second, the increase in composite density. The larger the size of the pineapple leaf fiber frame, the smaller the cavity formed in the composite. Cavities in the composite can reduce the tensile strength and elastic modulus of the composite. Based on the results of this study, it can be concluded that the use of 15% frame size variation as pineapple leaf fiber reinforcement can be used to make a matrix that can increase flexural strength and elastic modulus.
ANALISIS PEMBEBANAN PADA DESAIN HANDLED GENERATOR UNTUK PENGISIAN PERANGKAT KOMUNIKASI DAN PENGIRIMAN SINYAL SOS Arbi Fanani, Gholin; Alimi, Sabri; Alfatih, Muhammad Fa'iz
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1162

Abstract

This research discusses the measurement and calculation of electrical energy sourced from batteries in emergency handled generators as a very useful device when an airplane crash lands in an isolated area. The devices contained in this emergency handled generator include 2 18650 batteries, XL6009 module, NodeMCU V3 ESP8266, red LED and USB Female Type A. Measurements are carried out to obtain the energy value used for charging mobile phone batteries and loading using NodeMCU V3 ESP8266 for strobe light program contains SOS morse code. The results obtained when the emergency handled generator was used to charge energy in the cell phone battery to reach a level of 10%, for an output voltage of 4.69 Volts and the highest was 4.70 Volts. Meanwhile, the highest current at the XL6009 output is 121.8 Ma and the lowest is 100.0 mA. Furthermore, the maximum power used is 0.569 W and the minimum is 0.490 W. The resistance of the prototype device can be used to send SOS messages for 35 hours from the initial battery condition of 4.2 V until the battery runs out at 3.7 V.
PERBANDINGAN HASIL PEMAPARAN CHATGPT-4 DENGAN PERPLEXITY AI DALAM PENGGUNAAN AI SEBAGAI ALAT BANTU UNTUK MELAKUKAN KAJIAN SERVICE BULLETIN EMBRAER LEGACY 600/650 Yusup, Muhamad Yusup Kamal Arkan; Sofyan , Edi
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1173

Abstract

In the aviation industry, aircraft maintenance is crucial for ensuring safety and optimal performance. As technology evolves, digitalization and artificial intelligence (AI) are becoming vital for enhancing maintenance efficiency and accuracy. This study examines the use of AI, specifically ChatGPT-4 and Perplexity AI, to review Service Bulletins (SB) on the Embraer Legacy 600/650 and compares the results with manual reviews. The methodology involved three experienced reviewers manually examining two SBs, SB145LEG-33-0025 and SB145LEG-57-0015. These results were then compared with those generated by ChatGPT-4 and Perplexity AI, analyzing accuracy, processing time, and detail. Both AI platforms produced results similar to manual reviews, with minor differences in detail and interpretation. ChatGPT-4 was generally more accurate and detailed than Perplexity AI. Both AIs demonstrated significant potential in reducing the time and workload of SB assessments. The study concluded that AI could enhance efficiency in aircraft maintenance, especially in SB assessments, although human validation is still necessary to ensure accuracy and compliance with safety standards. Implementing AI in aviation maintenance can be an innovative step to address the industry's increasing complexity.
PENGUJIAN GESER PADA INTERFACE BONDING JOINT HIBRID AL-CFRP DENGAN VARIASI GEOMETRI PERMUKAAN AL assidiq, maulana hasbi; Wicaksono, Dhimas; Setiawan, Ferry
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1208

Abstract

Composites are a combination of two or more materials and each has its own properties and characteristics and produces one material with stronger properties than the supporting material. In this study using aluminum, carbon fiber and combined using epoxy resin. This research will produce new material products with variations without surface treatment (TST), HTG, HDG, and 2HDG. The manufacturing process in this study uses the hand lay up method and continues with the vacuum bagging method and is pressed with an iron plate. Shear testing was carried out with the aim of knowing the strength of the specimen against the applied shear force. The results obtained after shear testing of the three TST variations obtained the highest shear stress value in the TST 1 variation of 3.21 MPa and a maximum load of 1141.10 N. Then in the three HTG specimens obtained the highest shear stress value in HTG 1 of 5.54 MPa and 1768.57 N. Then in the three HDG specimens obtained the highest shear stress value in HTG 1 of 5.54 MPa and 1768.57 N. Then in the three HDG specimens, the highest shear value was obtained in HDG 2 of 3.00 MPa and 1005.99 N. Then in the three 2HDG specimens, the highest value was obtained in 2HDG 1 of 2.94 MPa and 1074.59 N. From the test results it is found that the specimen with the HTG variation has a higher shear stress value than the other variations. The type of failure in the kosongan and HTG variation specimens experienced a type of adhesive shear failure and in the HDG and 2HDG variations experienced cohesive shear failure.
PEMBUATAN DIES UAV J-1B DENGAN MOLD PENGECORAN METODE SAND CASTING Wicaksono, Dhimas; Setiawan, ferry; Aditya Mahendra, Dimas; Satrya Buana, Allan; Qayyum, A; Endy Aditya, Virgiawan; Romadhon, Doni
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1219

Abstract

Rapid technological advances, especially in the field of Unmanned Aerial Vehicles (UAV), have presented new challenges in the development of precision components. UAV, which can operate remotely or autonomously, require highly accurate components to ensure optimal performance and reliability. One important aspect in making UAV components is the casting process, where dimensional errors can affect the final performance of the UAV. This research aims to design and produce J-1B UAV Dies components using the sand casting method using used aluminum material. The research methodology carried out included experiments and observations, starting with 3D design using the SolidWorks application and continuing with making aluminum molds. During the casting process, it is known that the component size experiences significant shrinkage due to cooling of the molten metal, with a shrinkage percentage reaching 5.40% in the body section and 2.11% in the tail section. This shrinkage occurs due to changes in temperature which affect the volume of the metal when it hardens, as well as other factors such as removal of mold patterns and finishing processes which affect the final dimensions of the product. Variability in metal melting temperatures and casting techniques also contributes to product dimensional inaccuracies. This research emphasizes the importance of careful planning and strict quality control to minimize size differences and ensure conformity to the initial design. This research is fully funded by the STTKD campus, which is expected to equip the facilities and infrastructure for STTKD cadets in learning materials and support the development of UAV technology in the future.
OPTIMALISASI PENJADWALAN PERBAIKAN KAPAL DI PT X PADA PROYEK Y DENGAN CRITICAL PATH METHOD Husin, M. Husin As ari; Akmal Suryadi
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1287

Abstract

In the shipyard industry, the results of work often differ from the initial plans, including in the scheduling of ship repairs. Therefore, a method is needed to optimize the planning of shipyard projects. One approach used is network planning or network diagrams, which serve to determine the critical path (CP) of the tasks being performed. This method facilitates work network planning and identifies tasks that are part of the critical path. This study aims to identify the critical path of the broken-down tasks and to calculate labor acceleration, resource allocation, and the required costs. This method is applied to optimize the ship repair schedule at PT X for Project Y using the Critical Path Method (CPM) supported by Microsoft Project. In the bottop hull area, the initial work duration of 7 days was reduced to 5 days after crashing. The productivity calculation focuses on the bottop hull area, as this task has a clear and fixed unit of measurement, namely m². The research results show that the productivity index before crashing was 18 m²/person per day, with a productivity cost of Rp. 4,166.67/m²/person. After adding 2 workers, the distribution of labor became more even, although the productivity per person decreased to 15.12 m²/person per day. The productivity cost also increased to Rp. 4,960.31/m²/person.
ANALISA RESCHEDULE REPAIR KM STU MENGGUNAKAN METODE CRITICAL CHAIN PROJECT MANAGEMENT Sari, Zulia Wulan; Dira Ernawati
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1289

Abstract

PT XYZ is the largest shipyard company in Indonesia. As the largest shipyard, PT XYZ is required to PT XYZ is the largest shipyard company in Indonesia. As the largest shipyard, PT XYZ is the largest shipyard company in Indonesia. As the largest shipyard, PT XYZ is required to complete new shipbuilding and repair projects quickly, in accordance with the agreement stated in the contract agreed between the shipowner or his representative and the shipyard. In this case, project scheduling planning plays a very important role to ensure that each stage of work can be completed efficiently and on time. However, the schedule designed from the start is not always fully aligned with the implementation in the field, so that the work has the potential to be delayed from the specified time. The delay also occurred in the KM STU repair project carried out by PT XYZ. Therefore, a reschedule was carried out using the Critical Chain Project Management method. By implementing the CCPM method, the results showed that the project duration was 13 days with an additional project buffer of 3.5 days and a cost of IDR 266,000,000 which was the same as the normal duration or initial condition. However, if the buffer time in the CCPM duration is fully used, the total cost obtained will increase to IDR 304,080,000 or around 14.3% of the CCPM cost without a buffer. Meanwhile, worker productivity by implementing the Critical Chain Project Management method has increased compared to before. Previously, the average worker productivity was 27.45/mandays. Then after implementing the CCPM method, the average worker productivity became 54.89/mandays. Based on the results of the study, it can be seen that the Critical Chain Project Management method is more effective and efficient than the previous method. So that the results of this study can be used by the company as a reference in planning the next repair project schedule.
ANALISIS FAKTOR PENYEBAB KETERLAMBATAN REPAIR ROLLER FAIRLEAD DENGAN METODE KMO DAN RCA PADA KAPAL ABC Pramoedya Nugroho, Aldi; Syaifullah, Hafid
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1292

Abstract

Ship transportation is a very important tool for the sustainability of the maritime industry. Considering the importance of using ships, regular repairs are needed on ship components, one of which is the roller fairlead. Repairs to the roller fairlead on the ABC ship, which were originally only scheduled for 7 working days, were delayed by up to 38 working days. Therefore, this research aims to analyze the factors causing delays in the roller fairlead repair process on ABC Ships carried out by PT XYZ. Data collection was carried out by conducting direct interviews and distributing questionnaires to related parties. The data that was collected was processed using the Kaiser-Meyer-Olkin (KMO) and Root Cause Analysis (RCA) methods to identify and analyze the root causes of delays. The results of the analysis show that the main factor causing delays is a lack of labor allocation with a mean value of 4.38. Based on the results of this analysis, suggestions for improvement are given using the fishbone diagram tool. In this way, PT XYZ is expected to be able to increase work effectiveness, so that similar incidents do not happen again in future projects
ANALISIS PENYEBAB KETERLAMBATAN PEKERJAAN REPLATING LAMBUNG PADA PROYEK KAPAL X MENGGUNAKAN METODE FAULT TREE ANALYSIS Triwardani, Agil; Dewi, Sinta
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1294

Abstract

The The success of a project is marked by the achievement of the planned target. However, in its implementation, delays often occur, including in the hull replating work. In the ship repair project X at PT XYZ, this work experienced a schedule delay due to constraints on materials/equipment, labor, and management. The purpose of this study was to determine the root cause of the delay and propose improvements. The analysis was carried out using the Fault Tree Analysis (FTA) method to identify the root cause of the delay, while the improvement proposal was carried out using the Kaizen 5S method (Seiri, Seiton, Seiso, Seiketsu, Shitsuke). Based on the results of the analysis using the FTA method, the main factor causing the delay was the material/equipment factor with a probability value of 0.304. This factor includes three main indicators of the cause of the delay, namely the delay in the arrival of materials, the ordered materials are not appropriate, and the lack of adequate equipment. The application of the Kaizen 5S method aims to improve work efficiency through better material/equipment management and creating an organized work environment. Thus, it is hoped that the application of both methods can reduce delays and prevent similar problems in the future.
AKUISISI DATA 6 DEGREE OF FREEDOM DAN KOORDINAT MENGGUNAKAN SENSOR IMU, GPS, KOMUNIKASI LORA BERBASIS LABVIEW Cahya, Delila; Setiawan, Budhy; Dewatama, Denda; Ali Akbar Febritama, Muhammad
Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Vol 10 No 2 (2024): TEKNIKA STTKD: JURNAL TEKNIK, ELEKTRONIK, ENGINE
Publisher : Sekolah Tinggi Teknologi Kedirgantaraan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56521/teknika.v10i2.1299

Abstract

This research developed a data acquisition system for 6 Degrees of Freedom (6 DoF) and coordinates using an Inertial Measurement Unit (IMU) and Global Positioning System (GPS), with Long Range (LoRa) communication for data transmission. The system is integrated with LabVIEW for real-time data processing and visualization.The test results showed that the system is capable of accurately acquiring, transmitting, and displaying roll, pitch, yaw, and GPS coordinate data. The 3D model in LabVIEW represents the object's orientation and position in real-time, supporting various applications that require high-precision monitoring. LoRa successfully transmitted data over long distances without loss of integrity.This system provides a flexible solution for various industrial and research applications that require precise position and orientation monitoring. The implementation of this technology can support developments in autonomous navigation, surveillance systems, and robotics.

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