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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
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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 115 Documents
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The Influence of Compositional Variations in Kecombrang (Etlingera elatior) Stem Fiber and Epoxy Resin on Impact Strength: Pengaruh Variasi Komposisi Serat Batang Kecombrang dan Resin Epoxy terhadap Ketahanan Impak S, Syahri; Safriwardy, Ferri; Putra, Reza; Muhammad; Islami, Nurul
Malikussaleh Journal of Mechanical Science and Technology Vol. 9 No. 2 (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.v9i2.26252

Abstract

This research aims to evaluate the effect of variations in fiber type and volume fraction of torch ginger (kecombrang) stem fibers on the impact toughness of epoxy resin-based composite materials. The method used in the composite fabrication process was the Hand Lay-Up technique. Based on the test results using the Charpy Impact method, the first specimen—with a volume fraction composition of 70% torch ginger stem fiber and 30% epoxy resin—demonstrated the highest energy absorption capacity at 11.513 Joules. The second specimen, consisting of 65% torch ginger stem fiber and 35% epoxy resin, produced an energy absorption of 10.294 Joules, slightly lower than the first specimen. Meanwhile, the third specimen recorded the lowest energy absorption at 9.511 Joules with a composition of 60% torch ginger stem fiber and 40% epoxy resin, indicating that this specimen possesses the lowest impact toughness among the three tested configurations.
Influence of Laminate Orientation Ratio on the Tensile Strength of Sisal Fiber Composites Widekso, Ahmad Kholili Kuthut; Bahtiar, Ahmad Dony Mutiara; Halimi, Ahmad Dzulfikri
Malikussaleh Journal of Mechanical Science and Technology Vol. 10 No. 1 (2026): 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.v10i1.23032

Abstract

The development of natural fiber-based composite materials continues to increase due to their lightweight, environmentally friendly properties, and ability to provide good mechanical performance. Sisal fiber is one of the potential reinforcing candidates because it has high tensile strength and abundant availability; however, the performance of sisal fiber composites is greatly influenced by the lamination angle orientation, while research on lamination angle variations in epoxy composites is still limited. This study was conducted to examine the effect of sisal fiber lamination angle variations on the tensile strength of epoxy composites with orientations of 0°/90°/0°, 30°/-30°/30°, and 45°/-45°/45°. The composites were made using the hand lay-up method with a fiber volume fraction of 50%, while tensile testing was carried out in accordance with the ASTM D3039 standard. The results showed that the lamination angle had a significant effect on the mechanical properties of the composites. The 0°/90°/0° orientation provided the highest performance with a tensile strength of 98.403 MPa, strain of 9.457%, and elastic modulus of 1.061 GPa. The 30°/-30°/30° orientation produced a tensile strength of 9.957 MPa and a modulus of 0.577 GPa, while the 45°/-45°/45° orientation achieved 30.662 MPa and a modulus of 0.722 GPa. These findings confirm that fibers aligned parallel to the tensile direction contribute most significantly to the increase in the mechanical strength of composites. This research is expected to serve as a reference in selecting the optimal lamination configuration and support the development of strong, lightweight, and more sustainable natural fiber composite materials.
Performance Evaluation of Pump and Specific Energy Consumption (SEC) in a Seawater Reverse Osmosis (SWRO) Desalination System Suwarno, Devina Qinthara Siti Zulfaa; Bambang Puguh Manunggal; I Made Wiwit Kastawan
Malikussaleh Journal of Mechanical Science and Technology Vol. 10 No. 1 (2026): 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.v10i1.23545

Abstract

Seawater holds immense potential as a water resource in the region; however, its high Total Dissolved Solids (TDS) content—ranging from 35,000 to 45,000 ppm—renders it unsuitable for direct use. According to the World Health Organization (WHO), potable water must have a TDS level below 500 ppm. Consequently, desalination technologies have emerged to convert seawater into usable water. One such method is Sea Water Reverse Osmosis (SWRO), which is implemented by a company located in the Badung region of Bali. The SWRO initiative has received substantial support as a solution to address water scarcity, prompting this study to analyze its operational performance as a reference for future developments. The process begins with raw seawater undergoing pre-treatment, reverse osmosis, and post-treatment stages. A process flow diagram is constructed to map the flow rate across components. The primary components of the SWRO system are the High Pressure Pump (HPP) and the Reverse Osmosis (RO) membrane. The performance of the HPP is evaluated based on the ratio between hydraulic energy output and electrical energy input, while the Specific Energy Consumption (SEC) is calculated for the pump components throughout the process. For the RO membrane, the focus is placed on recovery rate and reflux ratio. The results show that the HPP achieves an efficiency of 74%, compared to the standard value of 78%. The system’s SEC is 2.58 kWh/m³, which lies within the acceptable range of 2.5–4.0 kWh/m³. The membrane demonstrates a recovery rate of 47%, aligning with the standard range of 40–50%, and a reflux ratio of 1.06, slightly below the optimal range of 1.2–1.5. Keywords: SWRO, High Pressure Pump (HPP), Specific Energy Consumption (SEC), recovery rate, reflux ratio.
An Integrated Analysis of Maintenance Management Effectiveness Based on Reliability, Maintainability, and Sustainability in Modern Industrial Systems tik, Sutikno; ainun, Muhammad Ainun Azid
Malikussaleh Journal of Mechanical Science and Technology Vol. 10 No. 1 (2026): 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.v10i1.26869

Abstract

This study aims to analyze the effectiveness of maintenance management systems from the perspectives of Reliability, Maintainability, and Sustainability (RMS) in modern industrial systems. A quantitative descriptive-analytical approach was employed using data from ten production units, including key performance indicators such as MTBF, MTTR, availability, OEE, maintenance cost, and energy consumption. The findings indicate that higher reliability and maintainability significantly contribute to improved system availability and operational performance. In addition, effective maintenance strategies are associated with reduced downtime, lower maintenance costs, and improved energy efficiency, highlighting the importance of integrating sustainability into maintenance management. However, the study also reveals limitations in the implementation of predictive and condition-based maintenance, as well as insufficient integration of data systems such as CMMS and energy monitoring. This research contributes by providing an integrated RMS-based evaluation framework that supports data-driven decision-making in maintenance management.
Design of a Two-Wheel Tractor Workshop Using Systematic Layout Planning (SLP) and Activity Relationship Chart (ARC) Jaya, Gigieh Henggar; Ramadhani, Tiara; Rakeisya Maulida, Nadia; Nurbayti, Nabilah; Adelia Putri, Tantri; Dwi Pratiwi, Sinta; Hari Kuncoro, Purwoko; Permana Sutisna, Setya
Malikussaleh Journal of Mechanical Science and Technology Vol. 10 No. 1 (2026): 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.v10i1.27102

Abstract

The increasing utilization of two-wheel tractors in agricultural mechanization necessitates the availability of adequate maintenance and repair facilities. However, a major issue frequently encountered is the absence of workshops with effective layouts and installations, which results in inefficient workflows and heightened occupational safety risks. This study aims to design the layout and installation of a two-wheel tractor workshop that emphasizes spatial efficiency, workflow organization, ergonomics, and occupational health and safety (OHS). The research method employed is descriptive quantitative, utilizing the Systematic Layout Planning (SLP) approach and the Activity Relationship Chart (ARC). The proposed design consists of a 120 m² workshop layout divided into ten main zones, applying a one-way straight-line workflow pattern. Comparative analysis demonstrates that the proposed layout significantly improves operational efficiency, as indicated by a 42.8% reduction in unit transfer distance (from 28 m to 16 m), a decrease in spare part retrieval time from 5 minutes to 2 minutes, and an increase in effective workspace utilization from 62% to 85%. The design also fully integrates OHS aspects into the spatial arrangement and employs part catalog analysis to optimize the placement of work equipment. In conclusion, the application of SLP and ARC approaches successfully produces a workshop facility design that is more efficient, organized, and safe, making it suitable for both operational needs and educational practice in agricultural machinery and equipment.

Page 12 of 12 | Total Record : 115

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