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INDONESIA
TEKNOSIA
Published by Universitas Bengkulu
ISSN : 19788819     EISSN : 27980588     DOI : https://doi.org/10.33369/teknosia.v17i1.28432
Core Subject : Science, Engineering,
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Engineering Transportation
A journal TEKNOSIA, Provides a forum for publishing the original research articles, review articles from contributors, and the novel technology news related to pure and interdisciplinary of sciences and engineering. Scientific articles dealing with sciences, technology and engineering fields of electric and electronics, mechanics, materials, structure, civil, informatics, computer, etc. are particularly welcomed. This journal encompasses original research articles, review articles, and short communications, including: Fundamental of Electrics; Fundamental of Electronics; Telecomunication; Mechatronics; Informatics Engineering; Software Engineering; System Engineering; Mechanical Engineering; Design; Manufacture; Energy and Conservation; Materials; Civil Engineering; Water and Resources Engineering; Transportation; Structure; Management; Bio-System Application.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 59 Documents
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ANALISIS LAJU KOROSI PADA BAJA ASTM A36 DENGAN VARIASI TEMPERATUR DAN WAKTU PERENDAMAN DALAM ALIRAN AIR LAUT Marthiana, Wenny; Hamdani , Yacob
Teknosia Vol. 18 No. 2 (2024): Desember 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v18i2.33425

Abstract

Abstract: Technological developments in the maritime industry are increasing rapidly, but the problem of corrosion is a problem that still often occurs due to factors such as temperature, humidity and chemical content in the air. The most widely used metal in the maritime industry, especially in ship hulls, is ASTM A36 steel which is a low carbon steel. The purpose of this study was to determine variations in temperature and immersion time on the corrosion rate of ASTM A36 steel. In immersion using variations of immersion time of 24, 72 and 120 hours. With temperature variations of 29oC, 32oC and 35oC. The results of the study showed that the highest corrosion rate value occurred in ASTM A36 steel which was soaked at 35c which showed a corrosion rate value of 25.1965 mmpy (24 hours), 30.9557 mmpy (72 hours), 41.3223 mmpy (120 hours). then in the test sample material pitting corrosion and erosion corrosion occur. The results of this study show that high temperatures can accelerate the rate of corrosion in the marine environment.
PENGARUH SUSUNAN SERAT TERHADAP SIFAT FISIK DAN MEKANIK KOMPOSIT HYBRID BERPENGUAT SERAT AGEL/FIBERGLASS MENGGUNAKAN TEKNIK VACUUM INFUSION Hestiawan, Hendri; Zuliantoni; Saragih, Fernando Desfriandi
Teknosia Vol. 18 No. 2 (2024): Desember 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v18i2.35852

Abstract

This research was motivated by using agel fiber which is easy to obtain and the effect of agel fiber which is hybridized using glass fiber using the vacuum infusion technique. This research aims to determine the effect of fiber arrangement on the mechanical and physical properties of agel/ fiberglass reinforced hybrid composite using the vacuum infusion technique. The main materials used in this research are agel fiber, fiberglass, ripoxy vinyl ester resin, methyl ethyl ketone peroxide (MEKP) catalyst and EX promoter. The process of making a specimen begins with preparing a mold from acrylic, then arranging the fibers based on predetermined variations in the arrangement. Resin, catalyst and promoter are mixed in a ratio of 400:40:1. Then stir until evenly mixed, then pour it into a container that is connected to the mold, after that the vacuum infusion process is carried out until the fiber structure in the mold is completely covered. The finished specimen is formed based on the testing standards. Bending test bending test uses ASTM D-790 standard, impact test uses ASTM D-5941 standard, tensile test uses ASTM D-638 standard, and density testing uses ASTM D-792 standard. The results of this research show that the mechanical and physical testing of the Agel-Gelas-Gelas-Gelas-Gelas-Gelas-Agel arrangement has the best bending strength, impact toughness and highest tensile strength, producing values ​​of 236.69 MPa, 62.97 kJ/ m2 and 84.1 MPa, while for testing the best density was obtained in the Gelas-Agel-Agel-Agel-Agel-Agel-Gelas G-5A-G arrangement of 1.19 gr/cm3.
DESAIN UI/UX APLIKASI BERGERAK INTEGRATIF MANAJEMEN MULTIMASJID RAMAH TAKMIR MENGGUNAKAN METODE DESAIN THINKING Siti Umi Nurhavizza, Siti Umi Nurhavizza; Ari Sujarwo
Teknosia Vol. 18 No. 2 (2024): Desember 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v18i2.35890

Abstract

The mosque serves as a center for community development, the cornerstone of Islamic society, and the foundation of civilization. According to data from the Ministry of Religious Affairs through the SIMAS (Masjid Information System) application, there were 242,832 mosques and 269,076 prayer rooms in Indonesia as of 2022. However, mosques and prayer rooms in Indonesia face issues like low activity levels and management often dominated by elderly individuals. Therefore, this research aims to design an integrative multi-mosque management application specifically for mosque caretakers (takmir) to manage mosques effectively and make them centers of community activities. This study uses the Design Thinking method, consisting of five stages: empathize, define, ideate, prototyping, and testing. The result is the design of a mosque management application named Kaffah, with seven main features: congregation data, congregation activities, mosque staff data, calendar, takmir, event list, and event data. These features are expected to assist takmir in managing the mosque and congregation data, the mosque becomes bustling with visitors and making the mosque a hub for community activities. Testing the Kaffah application's interface design shows that the developed prototype successfully aids and meets the needs of takmir in managing mosques.
PERENCANAAN ULANG STRUKTUR ATAS JEMBATAN MENGGUNAKAN BALOK-T BETON BERTULANG JL. BROMO KECAMATAN BARENG JOMBANG Wafi, Wafi sofwan nadi
Teknosia Vol. 18 No. 2 (2024): Desember 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v18i2.36050

Abstract

Bridges are one of the important infrastructures in the transportation system that play a role in connecting two locations separated by rivers, valleys, or other roads. The Jl. Bromo Bridge is planned to span 10 meters. Initially, this bridge used an arched type structure that was built during the Netherlands colonial period so that there was a need for structural rejuvenation due to the increasing volume of vehicles. The researcher replanned using a conventional concrete girder of T type by calculating the loading aspect referring to SNI 1275-2016, planning the repetition and repetition dimensions on the T-girder, and deflection control on the bridge. The results of the calculation on the replanning of the bridge upper structure were obtained as a result of the sidewalk weight (PMS) of 17.13 kN (MMS) 12.87 kNm, the nominal moment of the plan on the backrest wall was 0.0076, the reinforcement area was 152,233 mm2, the reinforcement D was 16 - 130 mm. The sliding span used is D 13 – 250 mm. The results of the calculation of the ultimate moment of loading (MU) that occurred on a beam of 1,482 kNm and the ultimate shear force (VU) of 598.44 kN with beam reinforcement were used 5 D32 with stiff reinforcement 22 – 100 mm. combination of deflection 0.017 < 10/240 = 0.042, with the use of diaphragm 2 D19 reinforcement, with a stiff reinforcement of 16 -120 mm.
PENERAPAN METODE LOCATION BASED SERVICE (LBS) DALAM APLIKASI PRESENSI PEGAWAI PADA UNIVERSITAS DEHASEN BENGKULU Haryanto, Muhammad Dicky Imansyah; Aspriyono, Hari; Suranti, Dewi
Teknosia Vol. 18 No. 2 (2024): Desember 2024
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v18i2.38334

Abstract

: This research develops a web-based attendance application using Location Based Service (LBS) technology at Dehasen University Bengkulu to overcome the limitations of fingerprint devices that often experience problems in recording fingerprints and other technical obstacles. The application was developed using the Waterfall method through the stages of needs analysis, system design, program code writing, testing, and implementation and maintenance. Designed using the Unified Modeling Language (UML) approach, and created using the Laravel framework and MySQL database.  The attendance application has two main interfaces: admin and employee interface. The admin interface allows management of attendance data, real-time attendance monitoring, verification of leave or permission approval, and configuring attendance location points. The employee interface facilitates GPS-enabled attendance for inbound and outbound attendance, leave or permit applications, and access to attendance history. The test results show that the attendance application improves accuracy and efficiency in recording employee attendance. However, the presence application is still unable to detect location manipulation and further development is expected to detect or block location manipulation attempts.
Improvement Desain pada Sistem Pedal Mesin Press Hidrolik untuk Meningkatkan Keamanan dalam Operasional Raka Surya M, Ananda; Antonio M, Jonatan; Rini G, Setia; Wilujeng Nugroho, Handi; Hamidi, Kurniawan; Dani Eka Putra, Rama; Zulenia Fitri, Tessa
Teknosia Vol. 19 No. 1 (2025): Vol. 19 No. 01 (2025): June 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v19i1.40934

Abstract

The hydraulic press machine is one of the essential tools in the manufacturing industry, particularly in the automotive sector, to accelerate and simplify the process of forming and assembling metal components with high precision. However, operating the machine using buttons presents several challenges, such as unresponsiveness, operator fatigue, and the risk of workplace accidents. This study aims to improve the efficiency and safety of hydraulic press machine operations by replacing the button system with a pedal system. This research uses a quantitative descriptive approach with literature review and experimental methods in the design process. The research stages include data collection through literature review, component Benchmarking to compile the Bill of Material (BOM), and machine design development using Assembly chart and Operation Process Chart (OPC). The results show that replacing buttons with pedals improves the machine's responsiveness and operator comfort. The ergonomic pedal design allows operators to control the machine more accurately and steadily, making the production process more efficient and consistent. Furthermore, the updated machine design with an enclosed structure enhances protection for internal components and extends the machine’s lifespan. In conclusion, the innovation of replacing the button system with a pedal system in hydraulic press machines successfully improves operator safety.
Analisis Quality Function Deployment (Qfd) Untuk Pengembangan Sistem Electro Pneumatic Berbasis Programmable Logic Controller (Plc) Pada Mesin Semi Otomatis Tester Coding Battery Aditya Luhur Wicaksono, Chandra; Lawi, Ansarullah; Mardiansyah, Yopy
Teknosia Vol. 19 No. 1 (2025): Vol. 19 No. 01 (2025): June 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v19i1.41182

Abstract

This research aims to develop a semi-automatic battery voltage testing machine using electro-pneumatic technology controlled by a Programmable Logic Controller (PLC) at PT VARTA Microbattery Indonesia. This machine is designed to enhance the efficiency and accuracy of testing lithium round cell 2/3 AA batteries, which were previously tested manually. The machine development utilizes the Quality Function Deployment (QFD) method, which identifies user needs through interviews and questionnaires, then translates them into technical characteristics within the system. The analysis using the House of Quality (HoQ) showed that the main priorities are testing accuracy, speed, ease of operation, and safety. This system integrates electro-pneumatic components, sensors, and PLC to control the machine's movements, ensuring a more efficient and consistent production process. The results indicate that the implementation of this semi-automatic machine can reduce the testing cycle time and improve battery production productivity.
Desain Sistem 5-Axis Robotic Arm untuk Otomatisasi Quality Control dengan Infrared Aufarizag, Habib; Wilujeng Nugroho, Handi; Hamidi, Kurniawan
Teknosia Vol. 19 No. 1 (2025): Vol. 19 No. 01 (2025): June 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v19i1.41396

Abstract

This study aims to design an optimized 5-Axis Robotic Arm system for Quality Control (QC) applications utilizing infrared sensor technology. The research process involved a comprehensive literature review to explore the latest developments in robotic systems and automation technologies. Benchmarking similar products was conducted to identify strengths and weaknesses as a foundation for innovation. The preparation of the Bill of Material (BoM), Operation Process Chart (OPC), and Assembly Chart (AC) was essential for systematic production planning. The final design was developed using Inventor 2024 software to ensure precision and component compatibility. The results demonstrate that the selection of aluminum materials, servo motors with a lifting capacity of up to 10 kg, Arduino Uno R3, and Pixy Cam significantly enhanced the system’s flexibility, durability, and efficiency. Structural modifications improved the mechanical stability and operational lifespan of the robotic arm. This system is expected to serve as an effective solution to improve the accuracy and speed of Quality Control processes in modern industrial environments.
Simplifikasi Desain Robotic Arm 6-Sumbu untuk Penyemprotan Cat Otomotif Berbasis Benchmarking dan Autodesk Inventor Ozzie Finerkwook, Alfred; Gabriel, Gabriel; D. P. Lie, Alvin; Wilujeng Nugroho, Handi; Hamidi, Kurniawan; Dani Eka Putra, Rama; Zulenia Fitri, Tessa
Teknosia Vol. 19 No. 1 (2025): Vol. 19 No. 01 (2025): June 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v19i1.41397

Abstract

This research aims to optimize the design of a 6-axis robotic Arm for spray painting processes in the automotive industry. The main problem identified is the complexity of the structure and the presence of non-functional components, which complicate the manufacturing process. Through benchmarking methods, analysis of the Bill of Materials (BoM), creation of an Operation Process Chart (OPC), and Assembly Chart (AC), the design was simplified without reducing its core functionality. Design development was carried out using Autodesk Inventor software to create a more efficient 3D model. An evaluation was conducted on the new design, including a Cost of Goods Manufactured (HPP) analysis to ensure cost efficiency. The research results show that eliminating non-functional parts improves production speed, reduces costs, and maintains the robotic Arm's balance and safety. Thus, the developed robotic Arm is simpler, more effective, and more economical to support increased industrial productivity.
PENGARUH DESAIN RUANGAN TERHADAP PERILAKU ANAK JALANAN PADA RUMAH SINGGAH ; STUDI KASUS KAMPUNG ANAK NEGERI Zahrameidina Yusuf, Nadiah; Wahyudie, Prasetyo
Teknosia Vol. 19 No. 1 (2025): Vol. 19 No. 01 (2025): June 2025
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v19i1.41488

Abstract

Shelters act as an important transition space for street children to get protection, coaching, and psychosocial reinforcement. The room's design in the halfway house can affect children's behavior, ranging from emotional aspects to social behavior. This article presents a literature review of various recent studies related to the relationship between spatial design and the behavior of street children in the context of shelters in Indonesia. The study stages are carried out systematically using scientific sources from 2019-2024. The review results found that design elements such as layout, natural lighting, ventilation, color selection, and space flexibility significantly impacted comfort, security, and children's participation in social activities. This study emphasizes the importance of a behavior-based design approach to create spaces that are not only functional but also support the holistic recovery and growth of street children.

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