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INDONESIA
JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY
Published by Universitas Medan Area
ISSN : 25496220     EISSN : 25496239     DOI : -
Core Subject : Science, Engineering,
Energy Industrial & Manufacturing Engineering Mechanical Engineering
This journal is a publication media of research results in the field of machinery that has been carried out by academics or practitioners by following predetermined rules. The research areas include: manufacturing, engineering materials, energy conversion and renewable energy, as well as other machinery fields, such as: mechatronics, hydraulics, plantation tools, and engine maintenance management systems. Each paper that has been sent will be reviewed by a team of experts in their field, and published online through the http://ojs.uma.ac.id/index.php/jmemme url address. This journal was founded in 2017 and has been registered with a print version of ISSN 2549-6220 and the online version of ISSN 2549-6239.
Arjuna Subject : -
Articles 211 Documents
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INVESTIGATION OF MECHANICAL BEHAVIOR OF POLYMERIC FOAM MATERIALS REINFORCED BY OIL PALM EMPTY FRUIT BUNCHES (OPEFB) FIBERS DUE TO STATIC AND DYNAMIC LOADS Achmad Jusuf Zulfikar; Muhammad Yusuf Rahmansyah Siahaan
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 3, No 1 (2019): EDISI JUNI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v3i1.2416

Abstract

Polymeric composite foam with EFB fiber reinforced is new material that can be utilized as an alternative engineering material. EFB fiber utilization becomes the center of subject in this research. Moreover, these composites are unique with the presence of cavities (foam) in the matrix of unsaturated polyester resin. It results a decrease in density of the material that formed, and obtain a thermoset polymer composite material lighter than any else similar type. The objective of this study is to obtain the best manufacturing techniques of composite material, the mechanical behavior of these materials due to tensile static loading and high strain rate impact, and the distribution of foam that occur in the material that formed as a result of blowing agent (BA) from the type of polyurethane (PU). In this research, the sample formed into standard specimen of testing, such as ASTM D638 for static tensile test, and impact test specimen. Mechanical’s behaviors that are obtained in this research are density, tensile strength, modulus of elasticity (E), the incident stress, and dynamic modulus of elasticity of the material. For static testing was performed according to standard ASTM D638 tensile and impact test using the Kolsky’s method. To know the distribution of foam that occur in the material, were observed using Scanning Electron Microscope instrument (SEM). To determine the stress distribution in this material, then conducted a computer simulation using Ansys. The best result obtained by the composition of this material based on material composition, which resin consumption can be reduced by the presence of BA as well as mechanical strength, good enough for molding. The best composition in this study will be used in subsequent studies, namely the design and manufacture of traffic cones from this material.
Analisis Reliability Centered Maintenance (RCM) Rel Conveyor pada Mesin Oven BTU Pyramax 150N di PT. Flextronics Teknology Indonesia - Batam Sariyusda Sariyusda
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 2, No 1 (2018): EDISI JUNI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v2i1.1656

Abstract

Reliability Centered Maintenance (RCM) atau lebih dikenal dengan the expert system of maintenance merupakan suatu metode desain sistem manajemen perawatan yang mampu memberikan jaminan ketersediaan, keselamatan, lingkungan serta desain sistem applicable dan komprehensif. Rel conveyor oven Btu Pyramax 150N adalah salah satu bagian yang sangat berpengaruh pada proses manufacturing sebuah PCB (Papan Circuit board) pada PT.Flextronics Teknology Indonesia – Batam  (Indonesia). Tujuan yang ingin dicapai ialah melakukan perancangan sistem manajemen perawatan berdasarkan RCM untuk menghindari terjadinya kegagalan (failure) peralatan mesin pada saat operasi yang menyebabkan terganggunya produksi dapat dihindari. Metode yang dilakukan pada penelitian ini mengunakan metode FMEA (Failure Mode and effect analysis) dan penelitian dapat tiga peralatan kritis yaitu rantai conveyor, jaring baja dan alur poros melintang.
Karakteristik permukaan dan struktur mikro Pada bahan aluiminium 6061menggunakan Pahat Karbida dengan metode pemesinan laju tinggi dan pemesinan kering bobby umroh
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 1, No 2 (2017): Edisi Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v1i2.1172

Abstract

Penelitian pemesinan laju tinggi  dan kering dengan tujuan untuk kemasan permukaan yang meliputi corak permukaan cacat (defect) yang diakibatkan oleh kondisi pemesinan  pada  bahan aluminium 6061 menggunakan pahat karbida. Pengumpulan data pengujian pemesinan ini dilakukan menggunakan metode faktorial data sebanyak 8 kali percobaan dengan 3 variabel utama yaitu laju pemotongan(V), laju pemakanan (f) dan kedalaman potong (a) pada tiga tiga tingkat besaran. Dari percobaan yang telah direkomendasikan dengan kondisi pemesinan terbaik  maka didapati beberapa Nilai kekasaran permukaan sangat ditentukan oleh aus pahat yang tinggi. Aus pahat yang tinggi (0.129-0.247)sangat berpotensi terjadi cacat berupa koyak permukaan (tearing surface) permukaan benda kerja termesin, pada laju pemakanan yang tinggi terjadi feed mark goresan karena laju pemakanan yang tinggi .Lebar butiran pada mikrostruktur sangat ditentukan oleh kecepatan potong, dimana pada kecepatan potong V= 1000 m/min besarnya butiran terlihat lebih melebar sedangkan pada V=1250 m/min besar butiran terlihat lebih rapat
Analisa Pengaruh Waktu Dan Turbulensi Asap Pada Mesin Pengering Ikan Lele Darianto Darianto
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 3, No 2 (2019): EDISI DESEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v3i2.3029

Abstract

Indonesia kaya akan sumber hayati, salah satunya adalah gudang sumber penghasil protein hewani khususnya ikan. Pengasapan adalah salah satunya cara pengawetan ikan yang dapat dilakukan dengan peralatan yang sederhana dan mudah didapat serta harganya murah.Tujuan penelitian ini adalah mendapatkan waktu ideal utuk proses pengasapan ikan dengan suhu 60ºC sampai dngan 70ºC waktu pengasapan 8 jam.Berat ikan yang diasapi dalam penelitian ini adalah 500 kg.Dan bahan bakar yang digunakan untuk pengasapan ikan adalah kayu jati.Dimana kayu ini dipilih sebagai bahan bakar karena sifatnya yang keras, sehingga dapat menghasilkan asap yang tebal dan mengeluarkan aroma yang cukup baik untuk ikan asap.Berdasarkan hasil pengujian dan perhitungan serta analisa data dapat diperoleh bahwa waktu pengasapan ideal yang dibutuhkan untuk mengasapi atau mengeringkan ikan lele sale adalah 8 jam.Dimana dengan menggunakan waktu 8 jam dapat menurunkan kadar air pada ikan sebesar dengan 70 %.Penurunan kadar air sebesar 70 % dipengaruhi oleh waktu pengasapan dan pemilihan bahan bakar yang bersifat keras dan pengkontrolan suhu pengasapan yang dilakukan secara rutin.
ANALISA RESPON MEKANIK GENTENG DARI BAHAN BETON BUSA DIPERKUAT SERAT TKKS AKIBAT BEBAN IMPAK HUJAN ES DENGAN MENGGUNAKAN IMPACTOR BATANG ALUMINIUM Ade Irwan
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 3, No 1 (2019): EDISI JUNI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v3i1.2498

Abstract

Untuk mengurangi beban mati pada konstruksi rumah, dikembangkan produk genteng dari bahan Concrete foam (Beton busa) diperkuat serat tandan kosong kelapa sawit (TKKS) sebagai bahan ringan alternatif. Beton busa merupakan jenis beton ringan yang menggunakan foam dan serat TKKS sebagai agregat ringannya. Beton busa telah diteliti dan dikembangkan menjadi berbagai produk bangunan ringan, salah satunya ialah genteng ringan. Fenomena hujan es dapat merusak pesawat, mobil, dan tentu saja atap rumah. Penelitian ini bertujuan untuk menganalisa respon mekanik produk genteng dari material komposit beton busa diperkuat serat TKKS akibat beban impak yang diakibatkan hujan es. Untuk memverifikasi hasil pengukuran, dilakukan pula simulasi beban impak menggunakan software Ansys. Pengujian impak hail (hujan es), dilakukan menggunakan alat uji kompresor impak (KOMPAK) dengan batang aluminium sebagai impactor-nya. Pengukuran tegangan pada spesimen diukur dengan menggunakan strain gages untuk beton. Pengujian divariasikan dengan jarak impak striker dan impactor. Dari penelitian ini diperoleh hasil bahwa produk genteng tidak mengalami kegagalan hingga kecepatan impak 14 m/detik. Pada jarak impak 60 mm (kecepatan impak 16,09 m/detik) genteng mulai mengalami kerusakan, dengan tegangan yang terukur pada strain gage sebesar 1,07 MPa. Dari hasil simulasi beban impak dengan Ansys, diperoleh tegangan normal arah sumbu X sebesar 1,0726 MPa.
Manufacture of Water Pipe From Clampshell Powder Materials Abdul Rahmansyah; zulfikar zulfikar; bobby umroh
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 2, No 2 (2018): Edisi Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v2i2.2105

Abstract

In general, household waste water pipelines use plastic pipes of PVC type that are not environmentally friendly and are relatively expensive. Therefore, this research will design molds and manufacture of composite pipes using raw materials of clampshell powder. The raw material used is clampshell powder with the composition of MgO and CaO compounds which is about 22.28% and 66.70%. The mixture of materials used consisted of clampshell powder with a size of 40 mesh, catalyst, and unsaturated polyester resin as a matrix. The objective of this study is manufacture of water pipes made from polymer composites reinforced by clampshell powder. Composite pipe manufacturing is carried out using the casting method. Pipe molds are made of stainless steel with a diameter of 40.46 mm (1.6 in) and an outer diameter of 50.8 mm (2 in). This mold size follows SNI 06-0084-2002 standards. The results of the study, water pipes from polymer composite material reinforced by clampshell powder with an inner diameter size of 40.64 mm and varying outside diameter. This variation depends on the composition of the clampshell powder in composite materials. The greater the clampshell powder composition, the more easily the maximum pipe wall thickness can be obtained. The average wall thickness variation is 3.35 mm. This variation is still included in the polymer water pipe requirements, which is a minimum of 2 mm.
Heat Transfer Simulation on the Wall of Rotary Cast Iron Smelting Furnace Capacity of 1 ton/hour Amir Syam; zulfikar zulfikar; Muhammad Idris Hutasuhut
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 2, No 1 (2018): EDISI JUNI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v2i1.1650

Abstract

The rotary smelting furnace is a cast iron smelting furnace with the working principle of raw material rotated in a melting drum. The difficulty of this type of furnace is if the furnace wall is damaged, it will be very difficult to determine the appropriate conduction coefficient material as a replacement material. Numerical simulations are required to obtain the heat transfer information that occurs on the furnace wall. This analysis aims to (1) obtain the temperature distribution occurring in the furnace wall, and (2) obtain the heat transfer coefficient on the wall surface on the inside, center, and outside of the melting furnace. Calculation of numerical simulation in this research is assisted by using Ansys software. The theoretical basis of numerical heat transfer simulation analysis can be determined by using the conduction temperature equation in each node. The load conditions in this case are assumed as thermal loads. The result obtained temperature distribution on the inner wall is 1590 oC, middle 1470 oC, and outside 1104 oC.
DESIGN AND MANUFACTURE OF SKATEBOARD FROM BANANA STEM Achmad Jusuf Zulfikar; Muhammad Yusuf Rahmansyah Siahaan
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 3, No 2 (2019): EDISI DESEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v3i2.3022

Abstract

A skateboard is a small piece of wood shaped like a surfboard with four wheels attached to it that is used to glide on a certain track. In general, this tool is made using wood material taken from nature and vulnerable to environmental damage issues. In this research, the waste of banana stems will be processed into the main raw material for skateboarding. The type of material chosen is the type of composite material with banana stem waste selected as reinforcement and polyester resin as the matrix material. The purpose of this research is to design and manufacture a skateboard made of composite fiber reinforced banana stem fibers and to test its flexural strength to obtain the characteristics of the material formed. The design was carried out with the help of the 2007 version of Autocad software by following commercial skateboard standards.  Flexural testing was carried out at the Impact and Fracture Research Center laboratory, Faculty of Engineering, University of North Sumatra. Static static testing of polymer composite board specimens from banana stems obtained the average value data for the composition of 5% banana stems is 9.81 MPa, for the composition of 10% banana stems an average of 13.60 MPa, and composition of 15% banana stems the average is 27.20 MPa. 2. The analysis shows that the best composition is 15% of banana stems, with an average flexural strength value of 27.20 MPa. Therefore, the composition used in this study is the composition of 15% reinforcement of banana stems.
ANALISA MAMPU KERAS BAJA ST 60 DENGAN METODE ALAT JOMINY TEST indra yadi
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 1, No 1 (2017): EDISI JUNI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v1i1.1192

Abstract

Mampu keras baja merupakan petunjuk penting untuk menentukan pola laku panas dan sifat bahan yang akan dilakukan dalam menghasilkan produk komponen. Salah satu cara untuk mengetahui hardenability baja, yaitu dengan menggunakan metode  uji  jominy.  Penelitian  ini,  menggunakan  metode  uji  jominy,  dengan parameter temperature austenisasi, waktu penahanan, media pendingin, kemudian diverifikasikan dengan hasil prediksi menggunakan metodepersamaan numerik tidak linear. Berdasarkan hasil penelitian diperoleh, bahwa makin tinggi temperatur austenisasi dan makin lama waktu penahanan, nilai kekerasan akan semakin meningkat. Sedangkan untuk baja dengan laju pendiginan cepat kekerasannya lebih tinggi dibanding dengan baja pendinginan lambat.Data dari hasil penelitian ini, dapat digunakan dalam penentuan laku panas yang sesuai dengan sifat mekanik yang diinginkan dan untuk menghindari terjadinya distorsi.terutama menggunakan bahan st  60  sebagai  bahan  uji  dalam  penelitian  ini,  karana  bahan  tersebut  banyak digunakan dalam  konstruksi–kontruksi  maupun  mesin-mesin  industi  sebagai material pembuat alat tersebut.
ANALISIS KEKUATAN STRUKTUR RANGKA MESIN PENGERING BAWANG MENGGUNAKAN PERANGKAT LUNAK ANSYS APDL 15.0 Azwir Sofyan; Jean Glusevic; Achmad Jusuf Zulfikar; Bobby Umroh
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 3, No 1 (2019): EDISI JUNI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v3i1.2417

Abstract

Typical technology for processing red onion affects the quality of red onion produced. The process of drying red onion is one of the important factors in producing the best quality of red onion. Environmentally friendly and easy operation and maintenance technology is the desired technology. In the process of engine design, the strength of the material and structure are the main factors of the building of the machine. Calculation with finite element method (FEM) is the best choice to obtain information on stress distribution on a machine structure. In this study, the calculation of the FEM method was assisted by Ansys APDL 15.0 software. The objectives of this study were: (1) calculation of the load on the tray structure, (2) the distribution of stress on the tray structure, seat, and frame for red onion dryers, and (3) analyzing the strength of the material using the Tresca and Energy Distortion methods. The input load comes from the weight of the tray and red onion. The analytical method used is the finite element method with the type of structural analysis and Beam 3Node 189 element type. Based on the FEM simulation results, the maximum stress that occurs in the tray is 1.22 MPa and the maximum deflection is 0.0055 mm. The maximum stress in the tray support structure is 33.25 MPa and the maximum deflection is 0.014 mm. The maximum stress on the frame structure of the onion drying machine is 0.89 MPa and the maximum deflection is 0.000235 mm which occurs in the middle of the machine structure. Using the Tresca and Distortion Energy theories, it is found that the stresses that occur are still far from the failure criteria for all structures. Likewise, the deflection that occurs is very small so that the construction of the onion drying machine is safe to use.

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