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PROGRAM STUDI TEKNIK MESIN - JURUSAN TEKNIK MESIN DAN INDUSTRI - FAKULTAS TEKNIK - UNIVERSITAS SYIAH KUALA, Jln. Syech Abdul Rauf, No. 7, Darussalam, Banda Aceh 23111, Aceh INDONESIA
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INDONESIA
Jurnal Teknik Mesin
Published by Universitas Syiah Kuala
ISSN : 23018224     EISSN : 26230747     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Arjuna Subject : -
Articles 106 Documents
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Penggunaan Accelerometer dan Strain Gauge Sebagai Sensor Untuk Mendeteksi Kerusakan Pahat Potong Nanda Aulia; Muhammad Rizal; Amir Zaki Mubarak
Jurnal Teknik Mesin Unsyiah Vol 7, No 1 (2019)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v7i1.14908

Abstract

The damage of cutting effect the product a lot, thus reducing the quality and dimensional change of the product. This research aims to monitor damage of cutting tool throught the accelerometer and strain gauge sensors on the process of turning Rod hydraulic cylinder SAE 1045 using cutting carbide coated. The machining process is carried out by the variation of cutting parameters, depth of cut 0,5 and 1,0, feed rate o,5 and 0,7 mm/min, and constant cutting speed of 1300 rpm. This experiment is conducted on three cutting tool condition they are new, medium wearing (0,15 mm) and critical wearing (0,3 mm). The censors used are accelerometer and strain gauge which are placed in the holder. The result show that kurtosis, RMS and standard deviation parameters are influenced by the tooling condition. Have the relation toward the wearing change of tooling, this case is showed by the existence of progress from the new, medium and critical tooling test. As for amplitude strain gauge signal also showed a significant change when there is damage to the wearing tools. This showed that the bigger wearing happening the higher signal out going.
Pengaruh Penerapan Metode Ripping pada Penambangan Batubara Terhadap Produktivitas Crushing Plant (Studi Kasus: PT Mifa Bersaudara, Aceh Barat) Haqul Baramsyah; T. Zulfikar; Nurul Kamal; Melya Gusnira Nilda
Jurnal Teknik Mesin Unsyiah Vol 8, No 1 (2020)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v8i1.18245

Abstract

PT Mifa Bersaudara is a coal mining company that operates in Meulaboh, Aceh Barat. The main activities are extracting coal from the ground, loading, hauling, and crushing the coal to a specific size. There are two crushing plants that currently running at the site, Fix Crusher 01 (FC01) and Fix Crusher 02 (FC02). The production target for these crushers are 550 tons/hours and 450 tons/hours, respectively. However, the crushers could not meet the target. The main problem is the number of boulder materials from mining front almost 8.22 %, exceeding the optimum percentage of crusher’s input. In order to fix this matter, the application of ripping method in mining the coal is needed. This method utilizes Bulldozer CAT D8R, equipped with ripper, to break down the coal seam. Based on the calculation, this method could decrease the percentage of boulder materials from 8.22% to 3.04%. It enhances the productivity of excavator from 229.71 tons/hours to 284.05 tons/hours. Then, the productivity of the crushers also increase from 545 to 552 tons/hours for FC01 and from 347 to 452 tons/hours for FC02. Therefore, the application of ripping method in excavating the coal seam could increase the productivity of coal crushing plant.   
Peningkatan Kadar Dissolved Oxygen pada Area Tambak Mengggunakan Windmill Aerator Tipe Savonius 4 Blade Darwin Harun; Syarizal Fonna; Ika Wahyuni
Jurnal Teknik Mesin Unsyiah Vol 7, No 2 (2019)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v7i2.18233

Abstract

The aeration process is a method  to increase the dissolved oxygen levels in the water environment. In the pond area has a minimum requirement of dissolved oxygen content in the water so that fish can live and develop. The minimum value of dissolved oxygen in the pond area is 4 mg / l, but the higher the level of dissolved oxygen in the pond area, the better the results of the pond. Previous research conducted by Rizki was Analysis of the Potential of Wind Energy for Windmill Aerator Performance of ponds in Alue Kumba in East Aceh Regency, and the results of these studies showed that the wind energy in the Alue Kumba Village had the potential to operate windmill aerators. However, this study has not shown the results of the dissolved oxygen value of the windmill aerator system, therefore this study aims to obtain results and the area that can be reached by a diffuser. The method used is data collection of dissolved oxygen from the diffusser installation with a distance of 1.5 meters and data collection at 3 times, morning, afternoon and evening. Installation of windmill aerator in the morning produces dissolved oxygen value of 7.42 mg / l with a maximum distance of 18 meters, then in the afternoon the oxygen value of 6.23 mg / l with a maximum distance of 15 meters, and for the afternoon conditions the value of dissolved oxygen is 5.16 mg / l with a maximum distance of 16.5 meters. The dissolved oxygen value after the installation of the windmill aerator increased with an average increase of 1-2 mg / l at each measurement point with the highest dissolved oxygen highest value of 7.42 mg / l up from 5.52 mg / l with a maximum distance of 18 meters on the measurement morning. From the results of this study explain that this method can produce a good area of dispersed dissolved oxygen with an average distance of 16.5 meters with a minimum dissolved oxygen condition that is good for fish to develop in the area of the pond
Perencanaan Dan Pembuatan Alat Uji Pemipaan untuk Menganalisis Kehilangan Tekanan dengan Menggunakan Software Pipe Flow Expert Dinni Agustina; Ratna Sary; Martunis Martunis
Jurnal Teknik Mesin Unsyiah Vol 6, No 1 (2018)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v6i1.18223

Abstract

The most dominant water distribution system used is the preparation system, in which each system has its respective advantages and disadvantages, where the weakness of the piping system is the unavoidable pressure loss caused by the connection factor and the surface roughness of the material used. Head losses are a flow loss phenomenon within the piping system. Head losses overall on 12.1 m piping system, This value can be from the sum of head losses on the pipe diameter of 25.4 mm with a length of 3400 mm of 0.0786 m. Head losses on pipe diameter 19 mm with length 3800 mm at 1.52 m and head losses at pipe diameter 12,7 mm with length 2800 mm equal to 10,59 m. The pressure in main pipe is 1,12 atm and pressure at output valve Water 1 atm based on the calculation method, the flow velocity in the main pipe 1 m/s, the speed in the second pipe 1.76 m/s, the speed in the last pipe of 3.34 m/s. Pipe used is PVC with diameter 1 inch, ¾ inch, and ½ inch. While the model pipe flow expert program 5.12 pressure on the main pipe of 1.18 atm, the pressure at the end of the valve 1 atm, the speed in the main pipe 1.077 m/s, the speed in the second pipe of 1.79 m/s, and the speed In the last pipe 3.3 m/s. The difference in velocity between modeling and calculation is due to the difference in internal diameter of the model by calculation, where the difference in value is 0.2 mm. The water debit generated from the test equipment is 1.3 m3/h, while using the software of 1.8 m3/h. The difference between the results of the experiment and modeling if the percentage of 270/0 is suppressed.
Perancangan Sistem Kendali Prosthetic Arm Penggerak Motor Servo dan Sensor Flex Berbasis Mikrokontroler Udink Aulia; Syahriza Syahriza; M. Rival Abizar
Jurnal Teknik Mesin Unsyiah Vol 8, No 1 (2020)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v8i1.18240

Abstract

This study examines about Prosthetic robotics technology which gradually continue to develop so that its use is wider. In this research author designed a control system on Microcontroller to move Prosthetic Arm. Prosthetic is an artificial device to replace the missing part of the body, this condition can occur through the condition at birth (abnormalities), illness and trauma. The purpose of this research is to create a Prosthetic Arm Prototype that can perform motion gripping, squeezing and removing. Prosthetic Arm was designed by using several control systems such as NANO Arduino, servo motor, flex sensor and Bluetooth as the main component. The Prosthetic Arm movement can only be operated based on the input of the control system that has been designed so that the movement operating on the Prosthetic Arm is desired. The result of this study shows that Prosthetic Arms can do gripping motion at 155° – 173° servo degree, squeezing motion at 180° servo degree and removing motion at 0° servo degree.
Optimasi Bentuk Hip Stem Prosthesis untuk Kondisi Heel Strike dan Flat Foot dengan Menggunakan Topology Optimization Berbasis Metode Elemen Hingga Syifaul Huzni; Syarizal Fonna; Heri Faisandra
Jurnal Teknik Mesin Unsyiah Vol 6, No 2 (2018)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v6i2.18228

Abstract

The objective of this research is to analyze the results of the topology optimization model Hip Stem Prosthesis in heel strike and flat foot conditions. The simulation is done using software based on finite element method ANSYS Release 18.0. Analysis of heel strike and flat foot conditions was carried out on the design of the artificial pelvic bone AML (Anatomical Modullary Locking) model. The ball head diameter used in this research was 38 mm and stem length was 140 mm. The analysis is done by optimizing the hip stem prosthesis step by step according to the condition when walking. Loading is given to the hip stem prosthesis during heel strike and flat foot with a time history of 0,01 seconds and 0,2 seconds starting from the initial position of heel strike and ending with the flat foot position. The simulation results show that the stress distribution is evenly distributed and the size of the volume of the design region varies.
Produksi Baling-Baling Kapal dari Logam Daur Ulang melalui Teknik Pengecoran Logam Akhyar Akhyar; Khairil Khairil; Ahmad Farhan; Masri Ibrahim; Suhaeri Suhaeri
Jurnal Teknik Mesin Unsyiah Vol 8, No 2 (2020)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v8i2.20679

Abstract

The boat propellers are needed for fishing boats in Aceh Province, considering that most Acehnese people geographically live along the coastline. Their income apart from farmers is fishermen. Currently, the metal ship propellers are imported from outside Aceh Province, so metal casting technology is needed to produce these ship propellers. There is already a small-scale industrial for metal casting, and the location is in Baet Lampuot - Aceh Besar District. The metal casting industry is currently producing rencong souvenirs to support tourism. However, when the Covid-19 Pandemic hit Aceh in particular and Indonesia in general, there are needed an alternative metal production business with other types of product variants, one of which was a ship cast-propeller. Based on this, Mechanical Engineering and FKIP Physics Department of Universitas Syiah Kuala improve the rencong metal casting industry to develop its products, to produce ship propellers through the Higher Education Leading Community Empowerment Program (PPMUPT) funded by the Ministry of Research and Technology /National Research and Innovation Agency of the Republic of Indonesia (RISTEK/ BRIN). The ship propeller product developed from waste metal, it recycled through metal casting technology. So the program and technology developed, is very useful not only for growing the regional economy but also in terms of handling the environment by recycling waste metal. Therefore, the community service program carried out by Mechanical Engineering and FKIP Physics Department of Universitas Syiah Kuala is right on target and in line with expectations.
Kaji Eksperimental Unjuk Kerja Mesin Diesel Memanfaatkan Campuran Biodiesel Dari Biji Alpukat (Persea Americana) Muhammad Ilham Maulana; Khairil Khairil; Rizal Aiyubi
Jurnal Teknik Mesin Unsyiah Vol 7, No 2 (2019)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v7i2.18234

Abstract

The availability of fossil fuels is increasingly decreasing, so some researchers have to look for alternative fuels, namely biodiesel. The raw material used as biodiesel was avocado seeds planted in Indonesia. Avocado seed oil content ranges from 15-25%. The purpose of this study was to determine the characteristics of biodiesel and diesel engine performance testing. This biodiesel is obtained through the esterification and transesterification process. This research uses a mixture of avocado seed oil biodiesel fuel with Pertamina dex fuel namely (B-5) 5%:95%, (B-15) 15%:85%, and (B-25) 25%:75% and (B-0) as a comparison. The test was carried out at the Engine and Propulsion System Laboratory at Mechanical Engineering Department, Universitas Syiah Kuala. The diesel engine was used is RUGGERINI HT-51 with a maximum power of 3 kW/3600 rpm. Biodiesel from avocado seed was tested physicochemical characteristics; the result is in accordance with National Standard (SNI) for biodiesel fuel. Performance results show the B-15 fuel produces the best engine performance at 3500 rpm. At this cycle a maximum power of 1.90 kW is obtained, the lowest specific fuel consumption rate of 2000 rotation (rpm) is 0.34 kg / kW hour on B-15 fuel, and the highest thermal efficiency on B-15 fuel with 2000 rotation (rpm) is 14.05%.
Studi Potensial Korosi pada Sistem Proteksi Katodik Beton Bertulang Dengan Variasi Jarak Anoda Syarizal Fonna; Syifaul Huzni; Muhammad Rizky
Jurnal Teknik Mesin Unsyiah Vol 6, No 1 (2018)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v6i1.18224

Abstract

The  objective of this study is to study the influence of  anode-cathode displacement to corrosion potential distribution of reinforced concrete cathodic protection system. Reinforced concrete speciments with a length of 1000 mm, width of 100 mm, and a height of 100 mm were used. Three variations of anode-cathode displacement for the specimens were 5 mm, 10 mm, and 20 mm. Specimens were immersed in a solution of NaCl 3.5 % and treated by wet-dry cycle. Profometer 5 + was used to find the location of reinforcement without damaging the surface of the concrete. Half-cell potential digital meters was used to measure the corrosion potential value of steel reinforcement. The corrosion potential measurements after 12 weeks of wet-dry cycle shows that the most negative corrosion potential was obtained for 10 mm anode-cathode displacement, i.e-391 mV. While for 5 mm and 20 mm anode-cathode displacements were -374 mV and -378 mV. Therefore, the anode-cathode displacements might affect the distribution of corrosion potential on reinforced concrete cathodic protection system. 
Pengaruh Variasi Bentuk Plat Terhadap Performansi Solar Water Heater Darwin Harun; Muhammad Ilham Maulana; Teuku Syahrul; Masri Ibrahim
Jurnal Teknik Mesin Unsyiah Vol 8, No 1 (2020)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v8i1.18241

Abstract

Thermal energy is one form of energy that is very crucial for human being. It can be obtained through the sun, i.e, that is solar energy. Solar energy is used widely both in industry and houshold. One of the most important component of solar water heater is thermal energy collector or known as absorber. Solar collector is a device utilized to convert sun radiation to thermal energy. This research wanted to examine the effect of different shapes of collector. The methodolody used is by varying the shapes of plat plate, where plate A has a square shape and plate B has has isosceles shape. Collector dimension is 1.5x0.8 m with these two shapes constructed from stainless steel. Pipe used for fluid is made from copper with 1 in diameter and 1.4 m length. Thermal insolation is used from rubber to decrease heat loss from pipe. Plate B collector with isosceles shape showed the highest efficiency compared to plate A collector with square shape. The highest outlet fluid temperature from plate B is 670C with sun radiation 1198 W/m2. The highest useful energy is 209.91 Watt from plate B at 13.30 and efficiency is 16.23% at 13.00WIB.

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