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Jurnal Polimesin
Published by Politeknik Negeri Lhokseumawe
ISSN : 16935462     EISSN : 25491199     DOI : http://dx.doi.org/10.30811/jpl
Core Subject : Science, Engineering,
Automotive Engineering Control & Systems Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering
Polimesin mostly publishes studies in the core areas of mechanical engineering, such as energy conversion, machine and mechanism design, and manufacturing technology. As science and technology develop rapidly in combination with other disciplines such as electrical, Polimesin also adapts to new facts by accepting manuscripts in mechatronics. In Biomechanics, Mechanical study in musculoskeletal and bio-tissue has been widely recognized to help better life quality for disabled people and physical rehabilitation work. Such a wide range of Polimesin could be published, but it still has criteria to apply mechanical systems and principles. Exceeding the limitation has been a common reason for rejection by those outside the scope. Using chemical principles more than mechanical ones in material engineering has been a common reason for rejection after submission. Excessive exploration of the management within the discipline of Industrial Engineering in the manufacturing technology scope is also unacceptable. The sub-scope biomechanics that focuses on ergonomics and does not study movement involving applied force on the bio-tissue is also not suitable for submission.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 503 Documents
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Pendekatan terpadu meningkatkan kemampuan menulis dalam bahasa inggris mahasiswa teknik mesin politeknik negeri lhokseumawe M.Nasir - M.Nasir
Jurnal POLIMESIN Vol 8, No 1 (2010): Februari
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jp.v8i1.1334

Abstract

Dalam mempelajari sebuah bahasa, seperti bahasa Inggris, menulis (writing) merupakan skill yang dianggap paling sulit untuk dipelajari. Ini disebabkan karena mereka harus mempunyai latarbelakang pengetahuan tertentu baik tentang rhetorical organizations, kesesuaian bahasa yang digunakan atau lexicon spesifik dengan siapa mereka akan berkomunikasi (sebagai pembaca). Dalam rangka membantu instruktur bahasa Inggris untuk meningkatkan kemampuan menulis mahasiswa dan agar dapat menulis dengan baik dalam bahasa Inggris, maka artikel ini mengarah untuk menyajikan kombinasi gaya (genre), produk, dan proses pendekatan dalam pengajaran menulis (writing). Agar lebih terfokus, artikel ini dibagi menjadi dua bagian. Bagian pertama membahas tentang literature review dari setiap pendekatan yang meliputi kelebihan dan kekurangan (strengths and drawbacks)nya. Bagian kedua meliputi pentingnya menggunakan pendekatan secara terpadu untuk meningkatkan kemampuan menulis mahasiswa teknik mesin, Politeknik Negeri Lhokseumawe
Development of MQL (minimum quantity lubricant) automation in applying cutting fluid on lathes Aris Zainul Muttaqin; Mahros Darsin; Yohan Rizal Kharisma; Ahmad Syuhri; Muhammad Trfiananto
Jurnal POLIMESIN Vol 20, No 2 (2022): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v20i2.2618

Abstract

It is normal to apply cutting fluid to machining, but using it excessively will harm the environment. One of the efforts to reduce it is to apply minimum quantity lubrication (MQL). This study aims to minimize the use of cutting fluid by designing a cutting fluid delivery system with Arduino Uno control. The developed MQL system can be controlled both based on temperature and time. This MQL system was a development from the previous system by replacing the limit and temperature sensor, nozzle, and mini compressor with a sprayer. The performance of this new MQL system was compared to a flooded cutting fluid feeding system. The experimental design of Taguchi L9 (3^4) with additional varied factors such as depth of cut, cutting speed, and feed rate. Each factor consisted of 3 levels. The measured output was cutting fluid consumption. S/N ratio analysis showed that the method of giving the cutting fluid most dominantly affected the outcome. ANOVA showed that more than 97.56% of the factors were dominated by the method. The combination of factors that would produce a minimum burst at a rate of 180 ml/hour if applying a combination of factors and a level of depth of cut 1.8 mm and a cutting speed of 120.89 m/min, provision of cutting fluid with the periodic MQL method and feed rate of 0.122 mm/rev. Meanwhile, the metal removal rate (MRR) analysis recommended the use of periodic cutting fluid methods at a depth of cut of 2.2 mm. The development of the new MQL either temperature control or periodic system control, both were able to comply with the MQL criterion, i.e. the maximum spray of 500 ml/h.
The effect of friction spot stir welding in double rivet lap joint installation of aluminum 2024-T3 on the strength of shear tests Ahmad imam Nawawi
Jurnal Polimesin Vol 21, No 5 (2023): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i5.4112

Abstract

The process of joining materials is very necessary to facilitate the manufacture of industrial products. Among these connections are rivets, bolts, nails, glue, and welding which is mostly done on metal materials. The aircraft skin is usually connected with rivets through a drilling process. Joining metal materials, especially aluminum, uses many welding techniques. The welding method currently being developed is Friction Stir Welding (FSW). FSW developed the Friction Stir Spot Welding (FSSW) process in joining metals, especially in this study using 2024-T3 aluminum. The purpose of combining the rivet method with FSSW is to see the material’s mechanical characteristics when applied to aluminum material. The FSSW method uses a 2500 RPM engine speed milling machine using a blunt tool holder with a pin dimension of 2.5 mm.  It is carried out using a pneumatic drill using a drill bit with a dimension of 2.5 mm. Aluminum 2024-T3 has of 200×20×2 mm dimensions, a hole spacing of 15 mm with double rivet lap joint installation. The results showed that the FSSW variation had a higher tensile shear strength of 2.8% than the drilling variation. However, the hardness value in the drilling variation is 56.3% higher than the FSSW variation in the Heat Affected Zone (HAZ). Microstructural observations also indicate differences in the HAZ region, where the FSSW is reduced in size and longer. This is due to the heat treatment process due to friction between the pin tool and the aluminum, thus changing the structure.
Ketangguhan retak dinamik komposit gfrp sebagai bahan dasar pembuatan helmet industri Zu haimi
Jurnal POLIMESIN Vol 6, No 2 (2008): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jop.v7i2.1379

Abstract

AbstrakKetangguhan rertak komposit Glass Fiber Reinforcement Plastic (GERP) salah satu sifat-sifat mekanik yang perlu diketahui, terutama pada produk yang mengalami benruran seperti helmet industri. Dalam kajian ini, harga ketangguhan retak dinamik diperoleh melalui proses simulasi elemen hingga dan membandingkannya dengan hasil eksperimen yang telah dilakukan oleh peneliti sebelumnya. Simulasi dilakukan melalui analisa dinamik menggunakan software MSC/NASTRAN dengan membentuk kontur spesimen setengah geometri untuk memudahkan proses analisa. Standar spesimen ASTM E-399 dengan ketebalan 4 mm yang terdiri dari susunan dua lapis serat penguat. Parameter ketangguhan retak ditentukan berdasarkan faktor intensitas leganan kritis (K)). Hasil simulasi menunjukkan harga ketangguhan retak sama dengan metode eksperimental dan dengan demikian cara simulasi juga memberikan tingkat akurasi yang tinggiKata kunci: Komposit GFRP, Ketangguhan retak. Simulasi elemen hingga
Design of Feed Rate Control System on Loss in Weight Feeder using Programmable Logic Controller Wardhana, Asepta Surya; Nurin Hamdani, Chalidia; Kusuma Dewi, Astrie; Ravy, Javier Umar; Aji, Ferro; Hendrawati, Dwiana
Jurnal Polimesin Vol 21, No 1 (2023): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i1.3184

Abstract

In the industrial world where there is a material process or solid product, it definitely requires a consistent material distribution process to be used in the next process. And to move material from the main storage area, it is necessary to use a tool commonly called a feeder machine or Loss In Weight Feeder. This tool has a feeder system consisting of a hopper and a feeder mounted on a load cell with high accuracy. So in this study, a feed rate control system was designed on the Loss In Weight Feeder to keep the feed rate process at the desired value, so there is a controller to regulate the motor speed in the feeder. To run the control system, a parameter control is needed, namely PID. In this study, in designing the PID controller using Direct Synthesis tuning which will be carried out using two methods in producing a plant model, namely the process model, the proportional gain (Kp) value is 38.7, integral gain (Ki) is 0.6, and derivative gain (Kp) is 0.6. Kd) of 8.12. And the plant structure model of the Auto Regressive eXogenous (ARX) model, the proportional gain (Kp) value is 13, the integral gain (Ki) is 0.78, and the derivative gain (Kd) is 12.85. Based on direct testing, the PID controller parameter that is suitable and reliable with the desired process response from the feed rate output from the Loss In Weight Feeder prototype is the PID controller parameter using Direct Synthesis tuning based on the plant process model. In the system test without disturbance, it produces a time constant (τ) of 3 seconds, settling time (ts) of 5 seconds, delay time (td) of 1.5 seconds, overshoot (Mp) of 79.92% and steady state error (ess) of 0%. And when testing the prototype by providing interference, it shows a fairly good interference rejection
Evaluation Of Category III Overhead Tools Inspection Rig X PT. BMS Suranta, Bambang Yudho; Rahman, Muhammad Hafiz; Sofyan, Akhmad
Jurnal Polimesin Vol 22, No 1 (2024): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i1.4223

Abstract

Overhead tool inspection is an important process in the oil and gas well drilling and maintenance industry. In harsh and hazardous environments, it is important to regularly monitor the physical condition and functionality of overhead tools. The use of overhead tools in the oil and gas industry has the advantage of lifting and moving heavy loads easily and safely. However, the use of heavy equipment also carries the risk of dangerous work accidents. The methodology in this research involves problem identification, literature review, research design, data collection, interpretation, analysis, and findings. The discussion emphasizes the meticulous inspection required for overhead tools, exemplified through the evaluation of traveling block, hook block, crown block, elevators, and elevator links. Each inspection, guided by API standards, ensures compliance, identifies potential hazards and prevents incidents in the inspection of overhead tools, various methods are used to ensure accurate inspection results and reduce the risk of failure during operation. This inspection involves techniques such as visual inspection and Non-Destructive Test (NDT) to test each overhead tools component which is guided by API SPEC 8A, API RP 8B and also API SPEC 8C. The main objective is to ensure that every aspect of the overhead tools has been carefully inspected and produces accurate inspection results. Thus, the risk of failure when inspecting overhead tools can be significantly reduced.The results indicate that the overhead tools inspected at PT. BSM meets API SPEC 8C standards. However, crucial findings, such as defects in crown block bearings and elevator safety pin issues, underscore the need for immediate attention. The conclusion emphasizes the importance of swift action to maintain safety and prevent further damage.
Perancangan dan pembuatan prototipe robot bermain bola takraw (software). Ariefin Ariefin
Jurnal POLIMESIN Vol 3, No 2 (2005): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v3i2.1449

Abstract

Bagian elektronik robot adalah hardware dan software yang mutlak harus ada agar robot lebih sederhana dan lebih mudah memodifikasinya. Software robot bermain bola takraw menggunakan hardware board DT51 dengan mikrokoatroler AT89C51. Part 1 dari AT89C51 digunakan untuk menggerakkan motor, Port A untuk sensor limit switch dan sensor jalur, Port B umuk sensor posisi keranjang Software-nya menggunakan bahasa assembly dirancang mampu memberikan  respon kepada  4(empat) buah motor DC, 2(dua) motor untuk pergerakan maju, mundur, belok kiri, belok kanan dan berhenti. 2(dua) motor untuk penembak bola dan pengambil bola. Software dirancang untuk menunda 3 detik dan kemudian memberi respon terhadap penyimpangan jalur; agar robot tidak terlalu bergoyang saat kembali berbelok ke jalur yang benar. 9(sembilan)  buah sensor photo transistor: 3(tiga) buah untuk sensor jalur dan 6(enam) buah untuk sensor posisi keranjang, 3(tiga) buah sensor limit switch 2(dua) buah untuk tanda pengambilan bola dan l(satu) buah untuk tanda bahwa bola sudah ditembakkan. Sebuah software pengendali robot yang  dihasilkan dengan menggunakan bahasa pemograman tingkat rendah (low level language) yaitu bahasa assembly di loading Ice board DT51 dengan menggunakan software DT51L. Kemudian software dan board DT51 dioperasikan dalam model Stand Alone yang dapat menjalankan program secara otomatis fika power pada DT51 dihidupkan.
Mechanical Properties Analysis of ASME SA-106 Grade B Pipe Material Welded Joints in Combination of SMAW and GTAW Welding Marzuki Marzuki; Turmizi Turmizi; Bukhari Bukhari; Nawawi Juhan; Akhyar Ibrahim; Aris Khatami
Jurnal POLIMESIN Vol 21, No 1 (2023): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i1.3557

Abstract

Investigation of pressure distribution in an Archimedes Screw Turbine with head below one meter using CFD Maulana, Muhammad Ilham; Sary, Ratna; Syuhada, A.; Mayasari, Siska; Yusmanizar, Yusmanizar
Jurnal Polimesin Vol 22, No 2 (2024): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i2.4901

Abstract

In the shift from fossil fuel-based energy, the imperative of tapping into water resources as a renewable energy reservoir is underscored. This study delves into the potential of low-head water for small-scale power generation, specifically focusing on the Archimedes turbine designed for operation in such conditions. The primary objective is meticulously examining pressure characteristics at varying heads (0.7 m, 0.8 m, 0.9 m, and 1 m) using Computational Fluid Dynamics (CFD). These parameters play a crucial role in defining the turbine's performance landscape. Data analysis reveals a notable reduction in the Archimedes turbine's efficiency as the head diminishes. Interestingly, the double-screw Archimedes turbine demonstrates optimal performance at higher flow rates, particularly at a volumetric flow rate of 0.025 m3/s. Despite the peak performance at a 1-meter head, discernible pressure patterns suggest sufficient kinetic energy within lower head flows (down to 0.7 meters) to facilitate turbine rotation. This study contributes to a more rigorous understanding of the Archimedes turbine's performance under varied head conditions, emphasizing the potential for practical power generation at lower head levels.
Rancang ulang mesin penyayat daging sapi untuk bahan baku membuat abon menggunakan motor listrik 1 HP Hasrin Hasrin; Zuhaimi Zuhaimi; Sumardi Sumardi
Jurnal POLIMESIN Vol 16, No 1 (2018): Februari
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v16i1.548

Abstract

The high consumption of processed beef products is a separate business opportunity to be developed. The shifting consumption pattern of the people in consuming processed beef products from fresh meat to processed products ready to encourage some parties to develop technology in terms of processing beef. In making abon now it is still traditional by using hands, knives or forks to cut the meat after the boiling process until cooked to be made abon. By using such manual equipment of course the process of making abon will take a long time, greater energy, and besides also slicing meat by pounding using a fork is considered less safe for workers. The purpose of this research is to get a tool / machine penyya beef is simpler for raw materials to make abon using electric motor 1 hp. Changes in the redesigned construction consist of: cylinder casing design, inlet and outlet ducts, container tubs and placemats. The result of the test has been tested by 1 kg of beef, thus showing the measured fiber texture measurement results consist of: 0.5 mm thickness, 30 mm length; 1 mm thick, 35 mm long and 1.5 mm thick, 35 mm long. Capacity of beef cultivation yields are: 3.3 ounces / minute or 1 kg / 3 minutes. So it can be concluded the closer the gaps in the cassing, then the result of the incision the better (smoother). Keywords: Meat meat machine, inlet hopper, cylinder case

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