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MACHINERY: Jurnal Teknologi Terapan
Published by Politeknik Negeri Sriwijaya
ISSN : 27233359     EISSN : 2776673X     DOI : https://doi.org/10.5281/zenodo.
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
MACHINERY Jurnal Teknologi Terapan was published by Mechanical Engineering Department, Politeknik Negeri Sriwijaya to disseminate in the form of technical and vocational research results of undergraduate (Sarjana Terapan) students of Mechanical Engineering in the fields of Machinery, Manufacturing, Metallurgy Sciences and Engineering, Design Engineering, Heavy Machine to academics, practitioners and students as well as interested parties. MACHINERY accepts article submissions written in Indonesian and welcoming in English. Determination of articles published in Machinery Jurnal Teknologi Terapan is through a review process by best partner of MACHINERY by considering, among others: fulfillment of the standard requirements of journal publications, research methods used, significance, and contribution to the results of research on technical and vocational in Mechanical engineering field study.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 124 Documents
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ANALISA KEGAGALAN ROUND STEEL LINK CHAINS PADA UNDERTOW SYSTEM PT. HINDOLI MILL SUNGAI LILIN Teguh Setiawan; Fenoria Putri; Karmin
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 2 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.12738651

Abstract

Penggunaan tali tambang pada capstan telah digantikan dengan round link chain pada undertow system di PT. Hindoli MSL dengan kepentingan safety. Namun dalam operasionalnya seringkali terjadi kegagalan berupa putusnya chain dengan frekuensi tinggi. Dalam investigasi yang dilakukan, pola patahan chain menunjukkan patah akibat beban fatik. Penggunaan operasional secara SOP tidak mengindikasikan terjadi overload dimana beban tersebut memiliki asumsi life time 7,1 tahun. Namun pada praktiknya, kegagalan telah terjadi sebelum life time berakhir. Hasil peninjauan lapangan, terdapat faktor eksternal yang mempengaruhi kegagalan yaitu roda lori yang abnormal. Roda lori tidak berputar pada rel melainkan hanya menggesek pada rel yang berakibat nilai koefisien gesek gelinding 0,001-0,002 menjadi 0,74 yang berimbas pada meningkatnya tegangan hingga overload. Selain itu terdapat pembebanan melebihi SOP di bawah tegangan overload yang berdampak pada life time yang lebih singkat. Pada faktor internal, terdapat komposisi kimia dengan jumlah persentase lebih rendah dibanding persentase standar.
Wita, Wantri Kasma PENGARUH SUHU DAN KECEPATAN MOTOR MESIN PULTRUSION TERHADAP DIAMETER FILAMEN 3D PRINTING Kasma Wita, Wantri; Irawan Malik; Sairul Effendi
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 2 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.12736097

Abstract

3D printing technology enables the creation of 3D objects from 3D CAD designs using various types of thermoplastic materials, such as PLA, ABS, PET/-G, TPU, PP, and Nylon. Among these materials, PET stands out as an ideal choice for 3D printing applications due to its advantages, namely clarity and strength. The process of producing 3D objects involves the use of filaments that can be generated through either extrusion or pultrusion methods. While the pultrusion method with Arduino Uno control settings shows promise, further research is required to enhance the quality of the produced filaments. In this study, the filament production process involves process parameters, including temperatures of 140°C, 145°C, 150°C, and motor speeds of 75 rpm, 80 rpm, 85 rpm, and 90 rpm. Based on the research findings, the smallest filament diameter was observed at a temperature of 150°C and a motor speed of 90 rpm. Conversely, the largest filament diameter was found at a temperature of 140°C and a motor speed of 75 rpm with a nozzle diameter of 1.75 mm. The highest filament quality was achieved using a nozzle diameter of 1.6 mm, resulting in an average filament diameter of 1.75 mm. Through non-linear regression analysis, it can be concluded that each process parameter has a simultaneous impact on the filament diameter. The results of this study provide insights into optimizing process parameters in the pultrusion method to produce high-quality filaments in 3D printing technology.
Unjuk Kerja Desain Prototype Penepat Las dan Bor Bermagnet Berdasarkan Analisis Ergonomi dengan Metode Quick Exposure Checklist Piyata Wira Yonatan Sitohang; Irawan Malik; Sairul Effendi
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 2 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.12738743

Abstract

This study aims to develop a prototype design for an ergonomic welding and drilling clamping tool and evaluate its performance by analyzing relevant ergonomic aspects using the Quick Exposure Checklist method. The data utilized encompasses primary data obtained through observations, literature reviews, questionnaires, and field studies. The findings of this research indicate that the resulting prototype design for the welding and drilling clamping tool exhibits a good level of ergonomics, with the ergonomic evaluation test results reaching 37%. This value is slightly below the recommended action limit of 40%, indicating that the tool meets the safe ergonomic criteria based on the Quick Exposure Checklist method.
ANALISIS TERMAL SOKET LAMPU MOBIL KOMPOSIT EPOXY SERAT NANAS DENGAN PENDEKATAN METODE FEA Fachriza, Andry; Prabowo, Bambang; Dicky; Zohari, Ahmad; Saputra, Eka Bima
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 1 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.10728590

Abstract

The function of the car light socket is to connect electricity to the car lights. The car lights would result in high temperatures and melt if it is used continuously. The electrical short circuits and light sockets made from plastic can also cause melting. This research aims to find a new material for lamp sockets that has high-insulating characteristics. The researcher uses composite materials of epoxy resin and pineapple leaf fiber to make car light sockets. The thermal simulation uses Solidworks software and its parameters obtained from research journals. The maximum and minimum temperatures that resulted from the thermal simulation are 110.916 ℃ and 74.849 ℃. The melting temperature of the car light socket in the thermal simulation (pineapple fiber-epoxy resin) is higher than the previous light socket material (plastic) and the temperature when a short circuit occurs. Therefore, the pineapple leaf fiber-epoxy resin composite can be used as for car light sockets.
PERANCANGAN DAN PEMBUATAN ALAT UJI BENDING DENGAN AKUISISI DATA BERBASIS ARDUINO Taufiqurrahman, Muhammad; Ivanto, Muhammad
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 2 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.12738752

Abstract

Pengujian mekanik pada material sangat diperlukan sebagai penentu nilai kekuatan dan sifat mekanik yang terdapat pada material tersebut. Salah satu dari pengujian mekanik adalah pengujian bending yang dapat menentukan nilai dari flexural strength dan modulus elastisitas dari material yang diuji. Untuk itu, alat uji bending yang telah dibuat, memiliki ketelitian akurat, dan mampu menyesuaikan standar pengujian sangat diperlukan. Tahap perancangan alat yaitu melakukan desain rangka dan pemilihan material, selanjutnya pembuatan dan pengujian untuk dapat melihat sejauh mana alat uji tersebut dapat menghasilkan nilai yang diinginkan. Dari hasil perancangan ini, menghasilkan alat uji bending kapasitas penekanan 500 kg, dengan pembacaan sensor dalam satuan gram, kecepatan penekanan ±5 mm/menit, serta mampu menghasilkan nilai serta kurva bending dari akuisisi data saat pengujian. Dari hasil pembuatan alat tersebut, menghasilkan alat uji bending dengan metode pengujian three point bending, mampu mendapatkan nilai flexural strength dan modulus elastisitas yang diharapkan dengan metode pengujian yang dapat disesuaikan dengan standar pengujian material yang ada. Dalam tahapan pengujian dengan menggunakan alat ini, menghasilkan ketelitian sebesar 82,86 %.Dengan memperhatikan ketelitian pada pengukuran dimensi spesimen dan jarak antar tumpuan bawah untuk mendapatkan nilai yang lebih akurat.  
MICROGRID EBT MEWUJUDKAN ENERGI BERKELANJUTAN DALAM AKSES LISTRIK MERATA DI INDONESIA Badzlina Zaataamani, Cahya Maharani; Imam Supriyadi; Muliahadi Tumanggor; Fajar bayu Nugroho; Dzilal Iksan
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 2 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.12738758

Abstract

Energi merupakan kebutuhan pokok yang mendukung berbagai aktivitas dan pilar utama kesejahteraan masyarakat. Dengan meningkatnya kebutuhan energi dan tantangan yang terkait dengan sumber energi fosil, pengembangan teknologi microgrid Energi Baru Terbarukan EBT menjadi solusi, tidak hanya berpotensi mengurangi emisi tetapi juga mendukung energi berlanjutan yang ramah lingkungan. Sumber energi baru terbarukan yang terintegrasi dalam sistem microgrid seperti solar, angin, air, dan bioenergi. Microgrid EBT sangat penting untuk mendukung diversifikasi sumber energi dan membantu memberikan akses listrik yang merata ke wilayah yang tidak memiliki jaringan listrik konvensional. Penelitian ini menggunakan metode kualitatif. Data diperoleh melalui penelitian literatur, analisis dokumen, dan informasi dari berbagai sumber ilmiah. Hasil penelitian menunjukan microgrid berbasis EBT memiliki potensi besar untuk memenuhi kebutuhan energi di Indonesia, mendukung pembangunan energi berkelanjutan yang ramah lingkungan, serta mempercepat akses listrik merata di Indonesia
Analisis Kekuatan Sambungan Pada Belt Conveyor Dengan Metode Mecanical Fastener dan Cold Splicing Apridiansyah, Apridiansyah; Putri, Fenoria; Hendradinata, Hendradinata
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 3 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.14242107

Abstract

Belt conveyor is a material transportation tool that uses a belt (belt) as a means of transportation. Belt conveyors were chosen because of their versatile function and ability to work continuously and easy maintenance. The damage factor that often occurs on conveyor belts is tearing and breaking caused by rubbing the belt with the pulley. When the belt breaks or is replaced the connection commonly used is a mechanical fastener and cold splicing connection. In this study, it discusses the strength of the two connections for mechanical fastener connections using flexco and cold splicing connections using 3 different types of adhesives (sunpat eco glue, aibon glue, and dextone glue) drying time of 3 hours. The belt specifications used in this study are EP-100 x 2P x 3.0 x 1.5. to determine the strength of the connection, a tensile test was carried out on the belt connection. From the test results obtained the average value of each connection, mechanical fastener 7.72 MPa, cold splicing glue sunpat eco 8.86 MPa, aibon glue 2.09 MPa, and dextone glue 4.79 MPa. Where the highest tensile strength is obtained by cold splicing joints using sunpat eco glue 8.86 MPa. So from the test results it can be concluded that the cold splicing connection with sunpat eco glue is stronger than other types of conveyor belt connections.
Wulandari, Sri OPTIMALISASI DESAIN GROOVE UNTUK MENINGKATKAN KINERJA BUSHING PADA RODA BOGIE BERBASIS SIMULASI CFD wulandari, Sri Wulandari; Fatahul Arifin; Irawan Malik
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 3 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.14242112

Abstract

Optimization is a process of maximizing an object to find the best results from a set of alternative solutions that exist, so as to increase its effectiveness, such as profits, minimize process time and so on. This thesis aims to conduct CFD (Computational Fluid Dynamics) simulation analysis on bushings with different grooves in an effort to improve lubrication efficiency. This research uses CFD (Computational Fluid Dynamics) simulation analysis on bushings with different grooves in an effort to improve lubrication efficiency. This research uses CFD (Computational Fluid Dynamics) simulation where a method is used to model, analyze, and related phenomena in the system using a numerical approach. The addition of grooves or grooves on the bushing surface can affect the flow of lubricant around it. Through CFD simulation, the author will compare the performance of various groove designs to identify models that provide better lubrication. The results of this research are expected to provide valuable insights in the development of more lubrication-efficient bushings.
Perancangan Miniatur Conveyor Berbasis Mikrokontroller Dengan Penggunaan Barcode GM66 Dan Pengaruh Kinerja Servo Samuel Tegar Eka Putra; Putri, Fenoria; Almadora Anwar Sani
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 3 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.14242117

Abstract

In industrial life, one of the efficient personnel of transporting goods is a conveyor that is needed in industry, such as currently sorting goods to be delivered to each city and province. The target position is placed in the barcode sensor room where there is an infrared proximity sensor, then the material is then spilled to the conveyor head. Analysis of the results is carried out by reading information from the data obtained and the same literature, so that the research can run well. Through experiments it can be known that the final time of the specimen with parameter conditions: weight variation 100.gr 170 gr, 200 gr, 220 gr, 240 gr at a speed of 20 rpm data average efficient time 53.92 seconds, 40 rpm data average efficient time 26.25 seconds, 60 rpm data average efficient time 20.19 seconds and 80 rpm data average efficient time 18.87 seconds that there is a significant difference in the results of the final time of the specimen. The results of the linear regression method show the relationship between the specimen end time value and the positive specimen distance between the y equation 0.3211x – 21.138 in other words, the lower the specimen end time value the mean time will increase, Thus, it can be used as a reference to determine the specimen end time value.
T TEKNOLOGI PENYANGRAI BIJI KOPI DENGAN ALAT UKUR MASSA SISTEM DIGITAL BERBASIS MIKROKONTROLER ARDUINO Surya Palas; Sailon, Sailon; Ahmad Zamheri
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 3 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.14242120

Abstract

Roasting coffee is a crucial process to produce high-quality coffee beans. However, the coffee roasting process is still often done manually. To address this issue, an automatic coffee roasting machine has been designed using various components such as Arduino Mega as the main controller, MLX 90614 sensor to measure temperature, load cell sensor to track the weight of coffee beans, DC motor as the coffee bean agitator, and LPG as the heating source for the roasting chamber. The research has shown that the coffee roasting machine functions well. Testing of the machine indicates that the heating temperature inside the roasting chamber can reach 150°C in an average time of 6.52 minutes. The load cell sensor has an accuracy rate of 99.5%, while the temperature sensor has an accuracy rate of 98.6%. With this automatic coffee roasting machine, it is expected to improve the efficiency of coffee roasting on a household scale. The machine allows for better temperature control and stable agitation, thereby helping to enhance the quality and production efficiency of coffee

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