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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 68 Documents
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Analisa Kekuatan Tarik Serat Tunggal Pelepah Aren Dengan 10% NaOH Edy Yusuf; A Aljufri
Malikussaleh Journal of Mechanical Science and Technology Vol 4, No 2 (2016): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v4i2.10894

Abstract

Pengaruh kadar air terhadap kekuatan tarik interfacial serat pelepah aren yang diberi perlakuan alkali dengan 10%NaOH. Menggunakan satu jenis serat alam yaitu serat pelepah aren. Pengujian kekuatan mekanik dari komposit yang dilakukan dengan menggunakan pengujian tarik (tensile test) yang dilakukan dengan mesin uji tarik pearson panke Equipment Ltd, bentuk dan ukuran sesuai dengan ukuran standar ASTM D 3379-75. Menganalisa dan membandingkan komposit serat pelepah aren dengan NaOH, yaitu 10% kadar NaOH. Analisa nilai yang terbaik dari kekuatan tarik pada serat pelepah aren yaitu dengan perlakuan alkali 10% sebesar menunjukkan bahwa nilai Tegangan tarik yang tertinggi pada Serat pelepah aren yaitu pada perlakuan alkali 10% NaOH dengan nilai 51.2 MPa dan nilai terendah yaitu dengan nilai 24.3 MPa, dan regangan tertinggi 6.4% dan nilai regangan terendah 0.2%, untuk modulus elastisitas tertinggi sebesar 127.93 dan nilai terendah sebesar 4.7 jadi pada penelitian perlakuan NaOH 10% bila diberikan larutan alkali yang semakin tinggi akan menyebabkan berkurangnya kandungan semiselulosa, lignin atau pektin pada serat.
Sifat Mekanis Beton Beragregat Kasar Peluru Plastik Yulius Rief Alkhaly
Malikussaleh Journal of Mechanical Science and Technology Vol 6, No 3 (2022): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v6i3.11027

Abstract

The purpose of this research is to investigate the feasibility of using bullet plastic as coarse aggregate or as a substitute for air bubbles in the production of lightweight concrete. The mechanical properties of plastic bullet-aggregated concrete substituted with 25%, 50%, 75%, and 100% of the gravel volume were evaluated experimentally. The mechanical properties tested were compressive strength, split tensile strength, and flexural strength. The test results show the mixture of 75% and 100% plastic bullets yields an acceptable density value as a lightweight concrete, with compressive strengths of 15.56 MPa and 14.94 MPa. These findings suggest that using plastic bullets as coarse aggregate or as a replacement for air bubbles is feasible regarded to American Concree Institute (ACI).
KEBUTUHAN AIR IRAGASI PADA D.I KRUENG PASEE ACEH UTARA Teuku Mudi Hafli; Adzuha Desmi; F Fadhliani; K Khairullah; Syahri Ramadhan; Batari Putri
Malikussaleh Journal of Mechanical Science and Technology Vol 7, No 1 (2023): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v7i1.12429

Abstract

Water demand is the amount of water volume that must be met for irrigation, in the Krueng Pasee irrigation area of North Aceh has an irrigation network area of 5579 Ha. The purpose ofthis research is to obtain the maximum and minimum irrigation water demand discharge in the study area. This research can be an additional source of knowledge for writers in particular and for readers in general. As well as the results of this study can be known the value of rice planting water needs. The data used in the research is rainfall data sourced from BMKG (Meteorology, Climatology, and Geophysics Agency) Malikussaleh, used to calculate effective rainfall and climate data sourced from BMKGMalikussaleh in the form of temperature data, solar irradiation data, wind speed data and humidity or temperature data used to calculate evapotranspiration (ETo). ETo is a combination of evaporation and transpiration which is defined as the event of water loss from plant tissue and the surface of the soil usedas a place to grow plants. In analyzing ETo using the Penman Modification Methodology. The Penman method by adjusting the wind function according to local conditions produces the best approach to the evapotranspiration rate of the lysimeter results. The consumptive use of plants (ETc) during the land preparation period uses the results of the calculation of water requirements for land preparation (IR). Crop consumptive use (ETc) after land preparation is a calculation between evapotranspiration and cropcoefficient. The calculated irrigation water requirement (NFR) results in water requirement in the form of mm/day. Irrigation water requirements are converted to l/dt/ha with a conversion rate of 1/8.64. The smallest water demand calculation discharge was obtained in November-1 at Q = 4.32 m3/det and thelargest water demand in February -1 at Q = 13.40 m3/det. At the research location, rice planting begins in January-I, with a rice-soybean planting pattern. From the calculation of water demand, Krueng Pasee Irrigation Area has the smallest water demand in November-1 and the largest water demand in February-1.
PENGARUH SURFACE ROUGHNES PADA MATERIAL AISI 1045 DAN AISI 4140 AKIBAT PROSES PEMESINAN BUBUT Wafiq Azhari; Aljufri Aljufri; Abdul Rahman; Reza Putra; Syarifah Akmal
Malikussaleh Journal of Mechanical Science and Technology Vol 7, No 1 (2023): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v7i1.12448

Abstract

Lathe machining is one type of conventional machine tool used for cutting/filling workpieces which is done by making an incision on the workpiece where the tool is moved translationally and parallel to the axis of the rotating workpiece. The result of the components of the turning process that is commonly done is surface roughness which is influenced by tool cutting angle, feeding speed, cutting speed, depth of cut. This study was conducted to determine how much influence the speed of feeding and depth of feeding on AISI 1045 steel and AISI 4140 steel materials used in shafts, conecting roads, gears with carbide chisels. With Vc=140 m/min, Vc=150 m/min, Vc=170 m/min, and Vc=180 m/min, and knowing the surface roughness of the workpiece using a carbide tool.  From the results of research on AISI 1045 and AISI 4140 steel for cutting along 50 mm with engine speed 1200 rpm and cutting depth 0.3 mm, as well as the cutting speed used Vc=140 m/min, Vc=150 m/min, Vc=170 m/min and Vc=180 m/min and the initial cutting distance of 4 mm, the time needed is 1,125 minutes. For the surface roughness value of AISI 1045 steel material and AISI 4140 steel has four variations in lathe feeding speed in this study, which in each variation has a different surface roughness value, the smallest surface roughness value is AISI 4140 steel with a feeding speed vc = 180 m / min surface roughness value of 0.705 μm compared to AISI 1045 steel material. This is due to the greater the movement of the feeding speed of feeding, the smaller the value of the surface roughness of the material
Rancang Bangun Alat Pengiris Bawang Serbaguna Amay Velda Zulkarnaen; Abubakar Dabet; Muhammad Yusuf; Reza Putra; J Jumadi
Malikussaleh Journal of Mechanical Science and Technology Vol 7, No 1 (2023): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v7i1.12591

Abstract

This study aims to obtain the production amount of the slicing process of a multipurpose onion slicer according to the needs of the home industry. This versatile onion slicer uses two ways, namely conventional and unconventional. From the experimental results, the rotation of the cutting disk obtained a speed of 46.05 m / s, the cutting power obtained based on the calculation of 513.9 Watt, smaller than the motor power used. The average working capacity of slicing using an electric motor within 1 hour for shallots, plantains, and cassava is 213 g/min, 590.33 g/min and 474.66 g/min, respectively. While if using the manual method is 125.66 g/min, 128.66 g/min, and 161 g/min. Using a 220 Volt water pump drive engine 0.5 HP 2000 Rpm, which is added to the dimmer to adjust the rotation speed. The frame uses Aluminum with a thickness of 1.2 mm.
Rancang Bangun Mesin Pemisah Limbah Geram Aluminium Hasil Proses Permesinan Agung Wahyudi; Muhammad Yusuf
Malikussaleh Journal of Mechanical Science and Technology Vol 7, No 1 (2023): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v7i1.12369

Abstract

ujuan penelitian ini untuk menghasilkan suatu geram jenis aluminium yang bersih dari logam ferrous dengan menggunakan mesin pemisah limbah geram aluminium, hasil pemisahan nantinya akan digunakan sebagai bahan penelitian pada pengecoran logam. Pengujian : meliputi pengamatan langsung terhadap proses pemisahan geram dengan menggunakan belt conveyor yang memiliki sekat, merancang komponen – komponen mesin seperti rangka, belt conveyor, roller conveyor, dan poros magnetik. Parameter pengujian hasil pemisahan geram memakan waktu selama 4 menit 51 detik dengan dua kali proses pemisahan, tujuan nya agar proses pemisahan geram yang berbentuk spiral akan sepenuhnya terpisah, hal itu dilakukan karena mesin pemisah limbah geram ini hanya memisahkan geram yang berbentuk spiral, oleh karena itu dibutuhkan suatu alat untuk menyempurnakannya. Disini terlihat bahwa pengaruh penyekat terhadap proses pemisahan geram sangatlah penting, karena penyekatlah yang mendorong geram berbahan ferrous yang melekat pada poros magnetik jatuh ke arah penampungan bahan ferrous, jika penyekat tidak ada maka geram yang melekat pada poros magnetik tidak akan bisa terlepas. Kecepatan motor penggerak tidak boleh terlalu kencang karena akan mengakibatkan geram akan terpental dan berhamburan. Motor yang digunakan memiliki kecepatan 24 rpm dan torsi 1,55 Nm
Analisis Kinerja Ruas Jalan Akibat Hambatan Samping: Studi Kasus Pasar Tradisional di Kota Medan Syibral Malasyi; M Mukhlis; Eva Anjella; M Fauzan; T Mudi Hafli; David Sarana; F Fasdarsyah
Malikussaleh Journal of Mechanical Science and Technology Vol 7, No 1 (2023): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v7i1.12602

Abstract

Road of Kapten Muslim Medan City is quite congested. due to the road is located in the area of many shops and trades that are not efficient in conducting buying and selling transactions. Primary data such as road geometrics, traffic volume, side obstacles, and speed. Based on the results and discussion, the highest side obstacle on this section of Jalan Kapten Muslim has an event weight frequency of 1087.8. This value is included in the class of very high side obstacles. The effect of obstacles on capacity is seen from the decrease in capacity before the side obstacle of 6,600 skr / hour with a Dj value of 0.47 and with side obstacles to 6,072 skr/ hour with a Dj value of 0.51. Thus, the level of road service for both is C. Thus, there is a decrease in capacity due to side barriers that can affect the performance of the road.
Pengaruh Fraksi Volume Serat Terhadap Kekuatan Tarik Komposit Serat Daun Nanas dan Sabut Kelapa dengan Polyester Bening 108 M Muhammad; Reza Putra; T Hafli; Nurul Islami; Abdul Malik
Malikussaleh Journal of Mechanical Science and Technology Vol 7, No 1 (2023): Malikussaleh Journal of Mechanical Science and Technology
Publisher : Malikussaleh University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/mjmst.v7i1.12490

Abstract

The goal of this study is to determine the effect of the matrix-to-filler ratio on the characteristic value of composites made from pineapple leaf fiber and coco fiber using clear polyester resin 108 as a matrix. The composite printing process involves combining 70% resin and 5% pineapple fiber: 15% pineapple fiber, 25% coconut fiber: 15% coconut fiber, 25% pineapple fiber, and 5% coconut fiber with 1% catalyst. The Hand-Lay Up method is used to create composites. Tensile strength testing mechanical properties are based on standards (ASTM D-3039). The tensile strength of 25% pineapple leaf fiber is the highest in this percentage variation: 5% coconut fiber with an average value of 44.88 MPa, 3.37% tensile strain, while pineapple leaf fiber 5% has the lowest tensile strength value: 25% coconut fiber with a 25.26 MPa average and a 2.54% tensile strain. According to the findings, the composite of 25% pineapple leaf fiber: 5% coconut fiber immersed in NaOH is suitable for use as an alternative tensile material.

Page 7 of 7 | Total Record : 68

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