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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 108 Documents
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Pengaruh Penambahan Karbon Aktif Dalam Katalis Kalium Hidroksida (KoH) Terhadap Performa Generator HHO Tipe Dry Cell Andrean, Rizky; Asnawi, A; Rahman, Abdul
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.v9i1.24349

Abstract

Hidrogen merupakan salah satu jenis energi terbarukan yang memiliki banyak keunggulan dibandingkan sumber energi terbarukan lainnya. Salah satu metode memproduksi hidrogen yang dapat dikembangkan adalah elektrolisis air. Elektrolisis air adalah penguraian senyawa air (H2O) menjadi Hidrogen dan Oksigen dengan menggunakan arus listrik. Pada penelitian ini digunakan generator HHO bertipe dry cell dengan penggunaan katalis berupa KOH dan karbon aktif. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh penambahan karbon aktif sebanyak 2,5%, 5%, 7,5% dan 10% kedalam larutan KOH sebesar 2,5% dengan total massa 1000g terhadap performa generator HHO. Dalam penelitian ini akan dihasilkan data berupa laju produksi HHO, daya saat pengoperasian dan efisiensi generator. Berdasarkan penelitian didapat hasil bahwa penambahan karbon aktif ke dalam larutan katalis KOH meningkatkan laju produksi HHO. Produksi HHO paling optimal adalah pada penambahan karbon aktif sebanyak 7,5% ke dalam larutan KOH 2,5% dengan daya 151,98W yang dapat memproduksi HHO sebanyak 497,51 ml/min
Analisa Laju Korosi Elemen Logam pada Sistem Bahan Bakar Mesin Diesel dengan Metode Celup (Immerse Test) dan Variasi Suhu Pemanasan Biodiesel (B35) Alkhaidir, Alkhaidir; Alchalil, Alchalil; Syahputra, Azhar; Fatwa, Islami; Taufiq, Taufiq
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

Abstract

Penelitian ini bertujuan untuk menganalisa laju korosi material berbahan logam pada sistem bahan bakar mesin diesel dengan metode celup (immerse test) dan variasi suhu pemanasan selama 168 jam (1 minggu) sehingga diperoleh data yang menunjukkan pengaruh penggunaan biodiesel (B35) pada kendaraan mesin diesel sejak pemerintah Indonesia menerapkan program mandatori biodiesel B35 pada tanggal 1 Februari 2023, yang mewajibkan campuran 35% biodiesel dari minyak kelapa sawit dengan 65% solar untuk mengatasi kelangkaan bahan bakar tersebut. Penelitian ini menggunakan metode eksperimen dengan mengukur kehilangan berat (weight loss) sampel, dengan spesimen langsung dari komponen sistem bahan bakar mesin diesel yaitu pipa injection pump PS 125 canter yang dipotong beberapa bagian kecil untuk dicelupkan kedalam cairan biodiesel (B35) yang sudah dipersiapkan pada alat uji korosi sederhana yang dilengkapi dengan thermostat pengatur suhu pemanasan dan termometer sebagai alat pengukur suhu biodiesel yang diinginkan yaitu 80⁰C, 90⁰C, dan 100⁰C. Sebuah pengaduk (Agitator) dipasang pada alat uji tersebut untuk menunjukkan proses korosi yang terjadi selama bahan bakar mengalir (bergerak). Hasil penelitian ini menunjukkan nilai rata-rata kehilangan berat pada spesimen pipa injection pump PS 125 canter dengan suhu pencelupan 80⁰C yaitu 170 mg, suhu pencelupan 90⁰C yaitu 420 mg, serta suhu pencelupan 100⁰C, sebanyak 430 mg dan nilai rata-rata laju korosi pada spesimen pipa injection pump PS 125 canter dengan suhu pencelupan 80⁰C yaitu 8.892 mmpy, suhu pencelupan 90⁰C yaitu 22.312 mmpy, serta suhu pencelupan 100⁰C sebanyak 23.319 mmpy.
Tensile Strength Study of Composite Materials Reinforced with Durian Fiber and Recycled Plastic Using Compression Molding Method Isra, Muhammad; Fauzan; Muhammad Nuzan Rizki; Tjut Rizqi Maysyarah Hadi; Akbar Rizqullah
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.v9i2.24352

Abstract

Efforts to manage waste are being carried out at various levels, ranging from households to large-scale industries that generate waste on a daily basis. The imbalance between waste generation and proper management has turned waste into a serious environmental concern. Among the different types of waste, plastic is one of the most difficult to naturally decompose (non-biodegradable) and represents the largest portion compared to other waste materials. Statistical data show that in several cities across Indonesia, the amount of non-biodegradable waste disposed of at final disposal sites reaches 6,598.23 tons per day. This study was conducted with both general and specific objectives. The general aim was to utilize plastic waste as a composite material, while the specific objective was to analyze the tensile strength properties of composites produced from plastic waste reinforced with durian fibers. By exploring the potential of plastic waste in construction materials, this research seeks to provide a sustainable solution to the plastic waste problem while contributing to environmental preservation. Four different specimens were prepared for testing: Specimen A (80% plastic waste and 20% durian fiber), Specimen B (60% plastic waste and 40% durian fiber), Specimen C (40% plastic waste and 60% durian fiber), and Specimen D (20% plastic waste and 80% durian fiber). The results revealed that Specimen B exhibited the highest average tensile strength of 20.9 MPa, indicating significant potential for enhancing material performance. In contrast, Specimen D showed the lowest average tensile strength of only 1.2 MPa, highlighting the need for further composition optimization to improve mechanical properties. Overall, this study provides valuable insights into the development of recycled composite materials for use in construction and broader industrial applications.
Laser Marking Writing Analysis Using a Character Detection Camera to View Marking Results Nanda, Rizki Aulia; Karyadi; Mulyadi, Dodi; Supriyanto, Agus; Suhara, Ade; Rizki, Muhammad Nuzan
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.v9i2.24917

Abstract

Laser marking has become an industrial trend to label a product to avoid problems arising from errors in product placement, labels can also be other markers depending on needs, laser marking can provide good writing prints on steel sheets. However, problems arise due to poor parameter input errors resulting in marking reading results that cannot be read by the scanner machine, this study aims to provide an analysis of the influence of laser marking input variations that can provide good marking quality, to determine the quality of marking, researchers use a Logitech camera assisted by Open CV programming, to see the quality of laser marking results that can be read by the scanner. This research method begins with inputting 6 parameter variations including speed, laser power and laser frequency, then Open CV programming is carried out to obtain image reading quality with color and line recognition, the reading results will automatically display the error level of the study. The results of the study explain the first test with a high error rate due to low input variables so that the reading is not clear, while the error value is 104040 in color recognition and 69024 in lines that are read with a 100% end range. The lowest error value is in the second test with the highest input variable, namely 1309 in black and white color recognition and 1345 in lines with a range of 100%, therefore the sixth test can be read clearly and well.
Optimization of Multi-Loop PI Control for a 6-DOF Robotic Arm Using Looptune in MATLAB/Simulink Yuli Mauliza; Ghiyalti Novilia; M. Basyir; Muhammad Isra
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.v9i2.25007

Abstract

This study discusses the tuning of a multi-loop control system based on Proportional–Integral (PI) controllers for a six-degree-of-freedom (6-DOF) robotic arm. Each joint is controlled individually but operates in coordination to achieve precise motion. A simultaneous tuning method using the looptune function and the slTuner interface in MATLAB is employed to optimize all six loops simultaneously, considering response time, MIMO stability, and minimal cross-coupling. Simulation results in the Simulink–Simscape model show that this method produces faster, more stable responses with reduced overshoot compared to conventional tuning. The implementation of a 2-DOF controller also eliminates overshoot and improves the performance of the Bicep joint, resulting in smoother and more accurate trajectory tracking.
The Effectiveness of Hanging Ornamental Plants in Absorbing solar Radiation for Enviromental Temperature Control Harmin, Amalia; Muhammad Isra; Fauzan; Marini Bravikawati; Sarah Niaci; Afrahun Naziah; Bukhari Kasim; Akbar Rizqullah
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.v9i2.25013

Abstract

Global climate change, characterized by an increase in the average temperature of the Earth, is an important issue that affects human life. One of the phenomena that occurs is the Urban Heat Island (UHI) phenomenon. This phenomenon occurs due to the lack of green plants that function as absorbers of solar heat. However, the effectiveness of plants in absorbing solar heat can vary. Therefore, experimental scientific studies are needed to determine the extent to which hanging ornamental plants can absorb solar heat. This study tested five types of hanging ornamental plants to obtain heat absorption values, namely Epipremnum aureum, Chlorophytum comosum, Paperomia hopei, Discidia geri, and Tradescantia spatcheae. The results of the study found that Chlorophytum Comosum (spider plant) had the highest heat absorption value of 1 kJ. This study contributes to providing solutions for controlling environmental temperature.
Stress and Strain Analysis of the Front Planetary Sun Gear of a Helical Differential Using the Finite Element Method with Variations in Initial Crack Conditions: Analisis Tegangan dan Regangan pada Front Planetary Sun Gear Diferensial Roda Gigi Miring Menggunakan Metode Elemen Hingga dengan Variasi Kondisi Retak Awal Fauzan, Fauzan; Harmin, Amalia; Isra, Muhammad
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.v9i2.25169

Abstract

This study aims to analyze the stress and strain distribution on the front planetary sun gear of a helical differential using the Finite Element Method (FEM). The analysis was carried out under two conditions: without a crack and with an initial crack of 1 mm placed at the tensile side tooth root, in order to evaluate the effect of defect presence on the mechanical behavior of the gear under an operational torque load of 175 Nm. Three-dimensional modeling and meshing were performed using ANSYS software, with SCM420 steel as the material, which has an allowable stress of 1,300 MPa. The simulation results show that the maximum stress in the uncracked model reached 8,859.6 MPa, while in the cracked model it increased to 15,258 MPa. Meanwhile, the maximum equivalent elastic strain increased from 4.437 × 10⁻² mm/mm to 1.154 × 10⁻¹ mm/mm. This significant increase indicates that the presence of an initial crack intensifies stress concentration and amplifies local deformation, potentially accelerating crack initiation and propagation due to the increased strain energy accumulated near the crack tip. Based on these findings, optimization of the fillet radius and the application of surface treatments such as shot peening or advanced carburizing are recommended to reduce peak stresses and extend gear fatigue life. The results of this study demonstrate that the FEM approach is effective in predicting structural behavior and serves as a basis for the development of reliability-based design and condition monitoring systems in modern automotive transmissions.
The Influence of Spindle Rotation Variation on The Wear of Carbide Cutting Tools Using a Gedee Weiler Lz-330 G Lathe Aljufri, Aljufri; Syahputra, Rio Mandala; Alchalil; Putra, Reza; Setiawan, Adi; Rahman, Abdul; Suryadi
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.v9i2.25326

Abstract

This study was conducted to determine the effect of spindle speed on the wear rate of CNMG 120404 carbide cutting tools using a dry machining process without coolant. The specimens used were AISI 1045 steel shafts, The cutting tool used was a CNMG 120404 carbide with conditions assumed to be the same in each experiment. The machine used was a Gedee Weiler LZ-330 G lathe with fixed parameters of 0.2 mm/revolution feed and 0.4 mm cutting depth, as well as spindle speed variations of 450 rpm and 660 rpm. The cutting time was carried out in stages starting from 5, 10, 15, 20, to 25 seconds. In this study, the parameters observed included tool wear and the surface roughness of the turning results on the AISI 1045 specimen. Tool wear was measured using visual macro documentation, while surface roughness was tested with a surface roughness tester. The results showed that the lowest wear value occurred at 450 rpm with a cutting time of 5 seconds, amounting to 0.012 mm, while the highest wear was achieved at 660 rpm with a cutting time of 25 seconds, amounting to 0.036 mm. In terms of surface quality, the lowest roughness value was obtained at 450 rpm with a cutting time of 5 seconds, amounting to 2.43 µm, while the highest roughness occurred at 660 rpm with a cutting time of 25 seconds, amounting to 4.56 µm. This data shows that the higher the speed and the longer the cutting time, the greater the tool wear and the lower the surface quality due to friction and increased temperature in the cutting zone. Wear on carbide tools is more influenced by friction between the tool and the workpiece and the duration of cutting. The speed factor is not as dominant as the effects of friction and cutting duration.

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