cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Asnawi
Contact Email
mjmst@unimal.ac.id
Phone
+6282162006677
Journal Mail Official
mjmst@unimal.ac.id
Editorial Address
Malikussaleh Journal of Mechanical Science and Technology (MJMST) Mechanical Engineering Laboratory, 2nd Floor, Kampus Bukit Indah, Universitas Malikussaleh, Aceh, Indonesia Jl. Kompleks Bukit Indah, Muara Satu, Kota Lhokseumawe, Provinsi Aceh, Indonesia, 24352 Email: mjmst@unimal.ac.id | Homepage : https://ojs.unimal.ac.id/mjmst/index
Location
Kota lhokseumawe,
Aceh
INDONESIA
Malikussaleh Journal of Mechanical Science Technology
Published by Universitas Malikussaleh
ISSN : 23376945     EISSN : 28282922     DOI : 10.29103
Core Subject : Science, Engineering,
Automotive Engineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
MJMST (Malikussaleh Journal of Mechanical Science and Technology) is a national research journal and invites contributions of original research articles as well as review articles in several areas of mechanical and material science. Published by Department Mechanical engineering, Faculty of engineering, Malikussaleh University, MJMST has been register as journal publication with ISSN number for printed version 2337-6945. The journal aims to publish refereed, high-quality research papers with significant novelty and short communications in all branches of mechanical science. Manuscripts which describe the novel theory and its application to practice are welcome, as are those which illustrate the transfer of techniques from other disciplines. Malikussaleh Journal of Mechanical Science and Technology is applying double-blind peer-review process for the publication. Both the reviewer and author are anonymous. Each article is at least reviewed by two reviewers, which has high competency in the field of Mechanical Engineering MJMST calls for papers that cover the following fields: Materials & Mechanics Materials & Processing Fluids Engineering Thermal Engineering Engine Systems Power & Energy Systems Dynamics, Measurement & Control Robotics & Mechatronics Micro-Nano Science & Technology Computational Mechanics Machine Design & Tribology Design & Systems Manufacturing & Machine Tool Manufacturing Systems Information, Intelligence & Precision Equipment Bioengineering and Biomechanics Sports Engineering and Human Dynamics Environmental Engineering Industrial & Safety Transportation & Logistics Space Engineering Technology & Society Law & Technology
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 108 Documents
 7   8   9   10   11 
Rancang Bangun Kompor Burner Menggunakan Bahan Bakar Oli Bekas Butar Butar, Iqbal Duarda; Yusuf, Muhammad; Nayan, Ahmad; Aljufri, Aljufri
Malikussaleh Journal of Mechanical Science and Technology Vol. 8 No. 2 (2024): Malikussaleh Journal of Mechanical Science and Technology
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v8i2.18836

Abstract

Kompor merupakan salah satu teknologi yang berperan penting dalam penggunaan energi skala rumah tangga. Oli merupakan salah satu sisa produk minyak bumi yang memiliki dua macam oli bekas yaitu oli bekas industri dan oli hitam. Membuat kompor menggunakan oli bekas sebagai bahan bakar kompor. Pengujian kompor menggunakan metode water boiling test (WBT), yang merupakan pengujian Fuel Consumtion Rate (FCR) yaitu pengujian untuk mengetahui perbandingan jumlah bahan bakar yang dipakai dengan waktu yang telah ditentukan yang didapat hasil 0,526 kg/jam, dan panas spesifik pada nozle yang digunakan ialah 0.470 J/g-°C. Karakteristik nyala api pada kompor memiliki warna biru setelah kompor dinyalakan dan dilakukan pemanasan selama kurang lebih 5  menit.
Fabrikasi dan Analisis Kekuatan Impak Safety Helmet dari Material Komposit Berpenguat Serat Bambu Mengunakan Resin Epoxy Subahgia, Jeroh Miko; Abubakar, Abubakar; Amani, Yasir; Aljufri, Aljufri; Rahman, Abduk
Malikussaleh Journal of Mechanical Science and Technology Vol. 8 No. 2 (2024): Malikussaleh Journal of Mechanical Science and Technology
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v8i2.17418

Abstract

Safety Helmet adalah salah satu jenis alat pelindung diri (APD) yang dikenakan di kepala dan biasanya terbuat dari logam atau bahan keras lainnya seperti Kevlar, serat resin, atau plastik. Berkenaan dengan penggunaan APD sebagai upaya perlindungan tenaga kerja, untuk mengindari faktor yang berpotensi membahayakan pekerja seperti: kecelakaan kerja, terpeleset dan terjatuh. untuk itu perlunya dilakukan tindakan seperti pelatihan, pembuatan work instruction (WI), standard operating procedure (SOP) sebagai upaya terakhir untuk menghindari kecelakaan kerja. Seiring dengan pesatnya kemajuan teknologi dibidang material membuat perkembangan material berpenguat serat alam (natural fiber) yang melimpah dan ramah lingkungan bisa menjadi opsi untuk menggantikan material plastik, logam maupun keramik. Bambu juga memiliki serat yang berpotensi untuk dikembangkan menjadi bahan biokomposit dalam dunia industri, khususnya pada helm pelindung (safety helmet) dikarenakan mudah didapat dan ramah lingkungan. Pemilihan serat bambu sebagai bahan penelitian dengan mempertimbangkan potensi serat bambu di Indonesia yang berlimpah dan belum termanfaatkan secara baik. Safety helmet di cetak menggunakan metode hand lay up. Uji impak komposit merujuk pada pengujian kekuatan dan ketahanan material komposit terhadap beban tiba-tiba atau benturan. Berdasarkan hasil penelitian yang dilakukan diperoleh kesimpulan sebagai berikut. nilai kekerasan spesimen dengan variasi fraksi volume 70% serat bambu memiliki nilai kekerasan rata-rata tertinggi sebesar  dan variasi fraksi volume 50% serat bambu memiliki nilai kekerasan rata-rata terendah yaitu  yang memiliki selisih  dengan variasi fraksi volume 70% serat. Nilai harga impact tertinggi didapat pada fraksi volume serat bambu 70% dengan harga impact rata-rata , sedangkan harga impact komposit serat bambu terendah adalah pada fraksi volume serat bambu sebanyak 50% dengan harga impact .
Fabrikasi dan Uji Karakteristik Material Serat Bambu Apus untuk Bucket Seat Mobil Listrik Hemat Energi Hadi, Dodi Alfarasi; Nayan, Ahmad; Rizki, Muhammad Nuzan; Zulmiardi, Zulmiardi; Yusuf, Edy
Malikussaleh Journal of Mechanical Science and Technology Vol. 8 No. 2 (2024): Malikussaleh Journal of Mechanical Science and Technology
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v8i2.18233

Abstract

Penelitian ini bertujuan untuk mengevaluasi potensi penggunaan serat bambu apus sebagai material komposit untuk fabrikasi bucket seat pada mobil listrik hemat energi. Penggunaan serat bambu apus dipilih karena sifat mekaniknya yang baik serta ketersediaannya yang melimpah di Indonesia. Proses fabrikasi dilakukan dengan metode vacuum infusion, sedangkan karakteristik mekanik material diuji melalui uji tarik. Selain itu, dilakukan simulasi pembebanan statis menggunakan metode elemen hingga (Finite Element Method) untuk menentukan nilai safety factor dari bucket seat yang dihasilkan. Hasil penelitian menunjukkan bahwa material komposit serat bambu apus memiliki kekuatan tarik yang cukup tinggi dengan nilai ultimate tensile strength (UTS) sebesar 24,77 N/mm², yang memenuhi standar keselamatan. Simulasi menunjukkan bahwa bucket seat memiliki nilai safety factor yang memadai untuk diaplikasikan pada kendaraan listrik hemat energi. Penelitian ini memberikan kontribusi terhadap pengembangan material komposit ramah lingkungan yang dapat digunakan dalam industri otomotif.
Pengaruh Minyak Nabati Sebagai Pendingin Terhadap Temperatur dan Kekasaran Permukaan Baja ST 42 pada Proses Pembubutan Rangkuti, Mhd. Saleh; Aljufri, Aljufri; Rizki, Muhammad Nuzan; Rahman, Abdul; Muhammad, Muhammad
Malikussaleh Journal of Mechanical Science and Technology Vol. 8 No. 2 (2024): Malikussaleh Journal of Mechanical Science and Technology
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v8i2.17669

Abstract

In the machining process, selecting the appropriate tool and coolant significantly affects the surface roughness of a product to be manufactured. The purpose of this research is to compare between soluble oil and vegetable oil as coolants in reducing roughness values and dissipating heat generated during the machining process of ST 42 steel. Carbide tools and vegetable oil coolants, namely cooking oil and castor oil, are used in this study, with soluble oil used as a reference. The machining process in this study employs conventional machining with a spindle speed of 1200 rpm, a cutting depth of 0.2 mm and 0.4 mm, and a cutting speed of 0.04 mm/minute. Temperature data collection during the machining process is carried out using a thermogun, and surface roughness testing is conducted using a Mitutoyo SJ-310 surface roughness tester. From the test results, the lowest roughness and temperature values are obtained at a cutting depth of 0.2 mm for all types of coolants used. The use of soluble oil yields the lowest average roughness and temperature values, which are 35.2 °C and 0.9 µm, respectively. Meanwhile, in the use of vegetable oil to minimize surface roughness, the lowest average value is found in cooking oil, which is 1.5 µm, and to minimize surface temperature during machining, castor oil coolant is the most effective, with a temperature of 40.1 °C.
Perancangan dan Pengujian Sistem Pendingin untuk Pengolahan Cokelat Pasca-Tempering Suhanto, Rhesti Nurlina; Fatwasauri, Icha; Dharmawan Hadi, Bagus; Septyansyah
Malikussaleh Journal of Mechanical Science and Technology Vol. 9 No. 1 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST)
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v9i1.21509

Abstract

The post-tempering cooling process in chocolate production is critical for achieving the desired quality attributes, including gloss, texture, and the stability of cocoa butter crystals. An essential aspect of the food processing industry is the demand for reliable cooling systems to maintain product quality, particularly in chocolate processing. This research focuses on designing and evaluating a cooling system based on an air cooled mini chiller integrated with an Air Handling Unit (AHU). The system gradually lowers the temperature of chocolate from 50°C to 27°C. The process involves creating a system based on cooling load calculations and thermal efficiency analysis, assembling it with a thermally insulated cabin, and conducting experimental testing to evaluate its performance. The testing environment was maintained at 31°C with relative humidity between 70% and 80%, without the use of a dehumidification system. The result indicates that the system can reduce the product temperature to 27°C in 38 minutes, with an efficiency of 63%. This represents an improvement compared to initial design efficiency, which was only 52%. Moreover, the cooling system operates effectively and stably, making it suitable for application in small-scale chocolate processing industries with a production capacity of 1–5 kg per cycle. This innovative solution is effective, stable, energy-efficient, and tailored for small scale chocolate production, and also offers future advancements in automated cooling technologies.
Initial Crack Analysis on 175 Nm Torque Differential Helical Gear Using Finite Element Method for Structural Failure Prediction Fauzan, Fauzan; Harmin, Amalia; Isra, Muhammad; Rizqullah, Akbar; Rizki, Muhammad Nuzan
Malikussaleh Journal of Mechanical Science and Technology Vol. 9 No. 1 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST)
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v9i1.21607

Abstract

Differential helical gears are critical components in power transmission systems of vehicles, responsible for transmitting torque from the engine to the drive wheels. These components operate under continuous high torque loads and are susceptible to failure due to material fatigue and the presence of initial cracks. This study aims to predict the initial crack location and evaluate the potential failure of a differential helical gear subjected to a 175 Nm torque using the Finite Element Method (FEM). The gear was modeled with actual dimensions and simulated using ANSYS software under two conditions: without cracks and with an initial crack. The simulation results show that the maximum shear stress without a crack is 45.82 MPa, while with an initial crack, it increases to 66.14 MPa, exceeding the allowable shear stress of ASTM A36 material at 45.45 MPa. This significant increase in stress due to the crack indicates a high risk of structural failure. Therefore, finite element analysis proves to be an effective tool for early crack detection and stress distribution evaluation, which is essential for improving the reliability of gear design and material selection.
Feasibility Analysis and Implementation of FreeCAD Open Source Computer-Aided Design (CAD) Software as an Alternative Replacement for Inventor Student Version Software Isra, Muhammad; Zulfri, Muhammad; Fauzan, Fauzan; Harmin, Amalia; Rizqullah, Akbar; Rizki, Muhammad Nuzan
Malikussaleh Journal of Mechanical Science and Technology Vol. 9 No. 1 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST)
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v9i1.21740

Abstract

Industry 4.0 is supported by nine foundational pillars, including Big Data and Analytics, Autonomous Robots, Simulation, Horizontal and Vertical System Integration, the Industrial Internet of Things (IIoT), Augmented Reality, Cloud Computing, Additive Manufacturing, and Cybersecurity. This study focuses on horizontal and vertical system integration, which enables seamless information flow across departments, suppliers, and customers through smart systems and IoT devices. One important tool in supporting industrial integration is Computer Aided Design (CAD), which plays a key role in product design and the generation of blueprints that bridge design and manufacturing functions. Most widely used CAD software such as AutoCAD, SolidWorks, Inventor, and CATIA are commercial and come with high licensing costs. At Samudra University, Autodesk Inventor Student Version was previously utilized for educational purposes; however, due to its feature limitations and temporary license, an alternative was sought. In collaboration with the Mechanical Engineering Department, FreeCAD was explored as an Open Source solution. This research aims to identify a free and open-source CAD software that offers features comparable to commercial CAD tools and can be further developed without licensing constraints. The methodology involves collecting various Open Source CAD applications, establishing evaluation criteria, testing core functionalities, and selecting the most suitable application to support academic and industrial design needs.
Analisis Temperature Humidity Index (THI) terhadap Kenyamanan Termal dengan Penambahan Tumbuhan Hijau pada Gedung Bertingkat Harmin, Amalia; Isra, Muhammad; Fauzan, Fauzan; Bravikawati, Marini; Naziah, Afrahun; Kasim, Bukhari
Malikussaleh Journal of Mechanical Science and Technology Vol. 9 No. 1 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST)
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v9i1.21763

Abstract

Aceh Province is experiencing rapid changes in infrastructure along with population growth and globalization and urbanization. This development and growth has led to a significant increase in the construction of high-rise buildings in urban areas. In multi-storey buildings, the use of materials that have a low albedo against solar radiation, so that a lot of radiation is absorbed and stored in the form of heat in the building so that it can increase the temperature of the building up to 12 °C. The absence of heat absorbers such as green plants around the building affects the thermal comfort of building occupants. Thermal comfort can be measured using various parameters, one of which is the Temperature Humidity Index (THI). The use of green plants of the type of Sansevieria Ttrifasciata which is used as a building envelope for 7 days on the 2nd floor of the Samudra University Laboratory building to measure the temperature difference after being absorbed first by the (Sansevieria Ttrifasciata) in the photosynthesis process. The results show that the THI thermal comfort index is reached at 25°C to 26°C with the conditions shown based on the ASHRAE 55 standard is thermally comfortable.
Implementation of IoT in the Design of Arduino-Based Solar Panel Monitoring System Karyadi, Karyadi; Nanda, Rizki Aulia; Tukino, Tukino; Suhara, Ade; Amalia, Amalia; Patya, Dhea Intan; Oganda, Decut Della
Malikussaleh Journal of Mechanical Science and Technology Vol. 9 No. 1 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST)
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v9i1.21790

Abstract

In order to develop literature studies on this research, solar panel monitoring systems to track the efficiency of solar energy conversion processes into electrical energy have been developed. The aim of this study was to build an IOT monitoring system on a mini solar panel to examine the impact of storing data in a microcontroller or IOT manner on the Thingspeak website. However, in this study, the same research was conducted, the difference being the use of a mini solar panel with a voltage capacity of 5V and a current of 60mA with a series or parallel assembly to obtain a voltage in the process of charging a 12V battery and a current of 5Ah. When using circuit design techniques, creating connectivity testing tools, data comparison, data processing, and finally, the test results, data is generated in the form of voltage, current, and power. The test results show that data storage using the microcontroller is faster than data storage using the IOT, which is due to the slow wifi signal speed. The error trend between the IOT and microcontroller from 10:00 to 11:00 o'clock decreased from the difference of 0.563 watts to 0.011 watts, indicating that the storage error between the IOT and the microcontroller is not too bad.
Karakteristik Biobriket Dari Campuran Limbah Kulit Kopi (Coffea Husk) Dan Limbah Ampas Tebu (Bagasse) Menggunakan Perekat Natrium Silikat Supia, Dede Irawan; Sayuthi, Muhammad; Amani, Yasir; alchalil, Alchalil; Nayan, Ahmad; Suryadi, Suryadi
Malikussaleh Journal of Mechanical Science and Technology Vol. 9 No. 1 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST)
Publisher : E-Journal Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v9i1.23237

Abstract

Pemanfaatan limbah pertanian sebagai sumber energi alternatif merupakan salah satu upaya mengurangi ketergantungan terhadap bahan bakar fosil dan berdampak negatif terhadap lingkungan. Penelitian ini bertujuan untuk mengkaji karakteristik biobriket dari campuran limbah kulit kopi dan ampas tebu dengan menggunakan perekat natrium silikat, serta menganalisis pengaruh variasi komposisi bahan terhadap sifat fisik dan termal biobriket. Komposisi bahan divariasikan dalam lima perbandingan kulit kopi dan ampas tebu (80:20, 70:30, 50:50, 30:70, dan 20:80) gram dengan 15% perekat Natrium Silikat. Hasil uji proximate menunjukkan bahwa kadar air tertinggi sebesar 4,336%, kadar abu tertinggi 0,69% ,karbon terikat tertinggi mencapai 17,946% dan untuk hasil pengujian nilai kalor tertinggi sebesar 6231,715 kal/gram pada komposisi 80 kulit kopi dan 20 gram ampas tebu dan nilai kadar zat terbang tertinggi sebesar 87,218% dengan perbandingan 20 gram kulit kopi dan 80 gram ampas tebu. Penelitian ini membuktikan bahwa campuran kulit kopi dan ampas tebu dengan perekat natrium silikat memiliki potensi besar sebagai bahan bakar alternatif, dengan dominasi kulit kopi menghasilkan karakteristik biobriket yang lebih optimal. Tetapi untuk penambahan ampas tebu disarankan tidak lebih dari 30 gram agar mendapatkan nilai kalor yang memenuhu SNI 1-6235-2000.

Page 10 of 11 | Total Record : 108

 7   8   9   10   11 

Filter by Year

2014 2025


Reset
Filter By Issues
All Issue Vol. 9 No. 2 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST) Vol. 9 No. 1 (2025): Malikussaleh Journal of Mechanical Science and Technology (MJMST) Vol. 8 No. 2 (2024): Malikussaleh Journal of Mechanical Science and Technology Vol. 8 No. 1 (2024): Malikussaleh Journal of Mechanical Science and Technology Vol. 7 No. 2 (2023): Malikussaleh Journal of Mechanical Science and Technology Vol 7, No 1 (2023): Malikussaleh Journal of Mechanical Science and Technology Vol 6, No 3 (2022): Malikussaleh Journal of Mechanical Science and Technology Vol 6, No 2 (2022): Special Issue in Material and Transportation - Malikussaleh Journal of Mechanica Vol 6, No 1 (2022): Malikussaleh Journal of Mechanical Science and Technology Vol 5, No 2 (2021): Malikussaleh Journal of Mechanical Science and Technology Vol 5, No 1 (2017): Malikussaleh Journal of Mechanical Science and Technology Vol 4, No 2 (2016): Malikussaleh Journal of Mechanical Science and Technology Vol 3, No 2 (2015): Malikussaleh Journal of Mechanical Science and Technology Vol 3, No 1 (2015): Malikussaleh Journal of Mechanical Science and Technology Vol 2, No 1 (2014): Malikussaleh Journal of Mechanical Science and Technology More Issue