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EKO BUDIYANTO
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INDONESIA
ARMATUR : Artikel Teknik Mesin dan Manufaktur
Published by Universitas Muhammadiyah Metro
ISSN : 2722080X     EISSN : 27220796     DOI : https://doi.org/10.24127
Core Subject : Engineering,
Aerospace Engineering Automotive Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering
ARMATUR : Artikel Teknik Mesin dan Manufaktur [ISSN (online) : 2722-0796, ISSN (cetak) : 2722-080X], merupakan jurnal terbitan berkala yang diterbitkan oleh Program Studi Teknik Mesin, Fakultas Teknik, Universitas Muhammadiyah Metro. ARMATUR terbit 2 kali dalam setahun bulan Maret dan September, memuat hasil-hasil penelitian dalam bidang Teknik Mesin dan Manufaktur. Dalam sekali penerbitan, ARMATUR memuat 5-10 artikel dengan 5-10 halaman per artikel. Proses penerimaan naskah jurnal sepenuhnya dilakukan melalui Online Journal Sistem (OJS).
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 13 Documents
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Search results for , issue "Vol 4 No 1 (2023): Jurnal Armatur" : 13 Documents clear
Desain dan analisis chassis tipe tubular space frame M. Wildanul Kahfi; Nely Ana Mufarida; Kosjoko Kosjoko
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3266

Abstract

Automotive is one of the mainstay products in the world today, especially in 4-wheeled vehicles and 2-wheeled vehicles. One of them is electric cars whose main driving force uses electric power. Some of the advantages possessed by electric vehicles with oil-fueled vehicles include free air police from exhaust fumes, no odor and a smoother motor sound. The development of electric cars in Indonesia, which is now growing rapidly, especially among university students, is being held with competitions to make electric cars that are worthy of being marketed. For that we need an energy-efficient car chassis design that is in accordance with the regulations of the Indonesian Electric Car Competition (KMLI). Research on the design chassis in previous studies has been done with different dimensions, materials, and types of chassis used. The purpose of this research is to design and analyze chassis type Tubular Space Frame using Solidworks 2019 Software in the hope of producing a chassis that is strong, lightweight and has flexibility properties while still paying attention to the Factor of Safety (FOS) when used. The chassis designed using Solidwork 2019 software has dimensions, including: Length = 1883.40 mm, Height = 1033.40 mm, Width = 721.34 mm. The results of the analysis and determination of the material between Aluminum 6061-T6 and Aluminum 6063-T6 used with a comparison of the values ​​of stress, displacement, and safety of factors that occur in the frame, it can be concluded that the chassis is a tubular type with the use of pipes 34.4 x 26.64 3.38 mm thick and 21.36 x 15.50 mm thick 2.77 mm is the most secure chassis and the weight is quite light.
Pengaruh variasi campuran bahan bakar plastik polypropylene (PP) dan pertalite terhadap performa unjuk kerja motor injeksi 110 cc Aji Sangjoko; Nely Ana Mufarida; Kosjoko Kosjoko
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3267

Abstract

The worldwide generation of plastics evolved over the years due to the use of plastics in various sectors. This increase affects the availability of petroleum resources because plastic is a petroleum-based material. The research method used is the experimental method. In this study, observations and tests were carried out on the performance of the 110 cc injection motor, namely torque and power. Data collection begins with 3000 RPM rounds and ends with 8000 RPM rounds according to the standard. The mixing variations between pertalite fuel and polypropylene plastic fuel are as follows: 30% pertalite and 70% polypropylene, 40% pertalite and 60% polypropylene, 50% pertalite and 50% polypropylene. The results showed that the fuel mixture of 30% pertalite and 70% polypropylene experienced an increase in torque from 5.77 N.m to 14.06 N.m, and an increase in power from 1.9 HP to 7.4 HP.
Laboratory tests of blade radius variation on vertical shaft savonius turbine performance Kurniawan Kurniawan; Tri Pratomo; Nurhaidah Nurhaidah; Devi Andriani; Supandi Supandi
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3292

Abstract

Wind turbines are one of the machines that are currently still used to convert wind kinetic energy so that they can be used by humans such as to drive pumps in agriculture and produce electrical energy. Savonius turbine is a vertical axis turbine that is currently widely used as an electrical energy generator, this wind turbine is a type of drag type wind turbine that has a simple design that is in the form of a semicircular curved blade side. Therefore, the author is interested in researching the resulting performance including turbine rotational speed, power generated, and wind turbine efficiency against the variation of the blade radius. The method used is experimental, the stages of this research are in the form of literature studies, making savonius turbines, testing savonius turbines with variations in blade radius as well as data retrieval, data processing, and analysis. Based on the data obtained, the rotating speed of the turbine is influenced by variations in the radius of the blade. The larger the blade radius, the smaller the turbine rotational speed. The maximum turbine rotation speed at blade radius 63 is 173 rpm, while at blade radius, 88 is 118 rpm and at blade radius 113 is 115 rpm. So the highest turbine rotating speed at a radius of 63.
Studi eksperimen rumah pengering ultra-violet (solar dryer) sistem hibrid tungku biomassa melalui variasi kecepatan aliran udara panas Verdy A. Koehuan; Margaretha Kewa Unarajan; Defmit B.N. Riwu; Muhamad Jafri
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3296

Abstract

The ultra-violet dryer integrated with the biomass furnace is a drying method with a forced mechanism. In this study, an experimental study was carried out. The drying process of porang tubers uses a hybrid system ultra violet plastic dryer (UV solar dryer) through varying the speed of the inlet air to obtain efficient drying results and porang tuber products. The results showed that the final moisture content of porang tubers after drying per day for each variation of air speed obtained the lowest value of 10.50%bb with the highest drying rate of 0.3373 kg/hour from the assumption of an initial moisture content of 70%bb, which occurs in variations airspeed of 1.8 m/s. while the speed is 1.3 m/s with the lowest drying rate of 0.330 kg/hour with a final moisture content of 11.74%.bb) Drying efficiency for variations in the speed of hot air flow into the hot air duct of the biomass furnace shows the highest value at a speed of 1.3 m/s of 16.76% with the lowest specific energy consumption (KES) of 51975.7 kJ/kg.
Rancang bangun mesin pengering buah pinang tipe rotari dengan sumber panas api kompor berbahan bahar oli bekas Iman Iman Syahrizal; Irma Fahrizal Butsi Ningsih; Kurniawan Kurniawan
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3297

Abstract

This study aims to describe the working system and test the performance of the machine, to find out an overview of reducing the moisture content of betel nut dried with a rotary type betel nut dryer machine with a heat source from a used oil-fueled stove fire. The methods used in the study consist of the design stage and the performance test stage. The design stage was to carry out the construction design process, material selection, and fabrication process. While the performance test stage aims to determine the ability of the machine to carry out the betel nut drying process. The results of the design of the rotary type betel nut dryer machine consist of a heating system and a drive system. The heating system uses heat from the used oil-fueled stove and the drive system uses an electric motor connected to the reducer gearbox to rotate the cylinder of the drying chamber. The maximum air temperature generated during the 7-hour performance test process was 108oC with an air flow speed of 3,8 m/s. The results of the design of the drying machine are able to reduce fruit mass by 5.5 kg with a drying rate of 0.785 kg / hour on wet betel nut. The reduction in the moisture content of dried betel nut is directly proportional to the reduction in mass. During the 7-hour drying process, the moisture content of the betel nut is reduced by 55% with a reduction rate of 7.85% / hour
Development of welding discontinuity identification system using statistical texture feature extraction and ANN classification on digital radiographic image Haerul Ahmadi; Dandi Arifian; Tasih Mulyono; Bangun Pribadi; Risse Entikaria Rachmanita
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3330

Abstract

Discontinuity in welds is one of the causes of the quality of a connection in the material decreases function. Undamaged test with radiographic method is one of the tests to see the quality of a weld. The test results are radiograph images and evaluated by a radiographer. So this research is designed by optimizing a system to help the work of a radiography expert in identifying discontinuities by utilizing the Matlab Application. On this system uses the method of characteristic extraction and classification of neural networks (AAN). The system uses a characteristic extraction method with geometric invariant moment (GIM) algorithms and a gray level co-occurenece matrix (GLCM) as identification values used in the classification process. The calcification process uses a backpropagation-type multilayer Artificial Neural Network. The types of discontinuities used as data in this system are incompleted of penetration, crack, wormhole, and distributed porosity using a total of 800 datasets of radiograph imagery data. This data sharing is organized using k fold cross validation. The study conducted 15 experiments in system testing to prove the truth in identifying. The results of the experiment resulted in the highest average performance score reaching 93.33%
Uji performa dan konsumsi bahan bakar menggunakan kombinasi bioetanol Manihot Utilissima Dani Hari Tunggal Prasetiyo; Djoko Wahyudi
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3340

Abstract

Advances in technology have an impact on increasing the population of vehicles as a means of transportation. Currently the vehicle's work system to produce energy still uses internal combustion. The fuel used as an energy source is still dominated by fuel oil. If exploitation continues without using alternative fuels, it is predicted that there will be a fuel crisis in the future. Therefore, efforts are needed to conserve fossil fuels. One way to do this is by adding bioethanol. This research was conducted by adding bioethanol from cassava to gasoline type fuel with an octane rating of 92. This study aims to determine the performance and fuel consumption. Tests varied the fuel composition by 5%, 10%, 15%, 20% with engine speed of 1,000 to 8,000 rpm. The test results show that the composition of Pertamax 80% with 20% bioethanol produces the highest power and torque of 8.87 hp and 8.32 N.m, but for the lowest fuel consumption the fuel composition is Pertamax turbo 100% with a fuel consumption value of 38.8 ml/min.
Pengaruh waktu aging terhadap perubahan sifat fisik paduan ingat bentuk (shape memory alloy) Cu-Zn-Al Rico Josua; Budiarto Budiarto
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3343

Abstract

Cu-Zn-Al alloy is a shape memory alloy (SMA) that is widely used due to its high transformation temperature. This study aimed to determine the effect of variations in aging time (1.3 and 5 hours) on physical changes (crystal structure and hardness) in Cu-Zn-Al alloys. The method used in this study is powder metallurgy by combining Cu, Zn, and Al powders. Followed by mixing them and then compacting the alloy. The alloy was sintered at 400°C and quenched at room temperature for 24 hours. Then the alloy was given various heat treatments (aging) for 1.3 and 5 hours at 200 °C. Microstructure and hardness tests were carried out on Cu-Zn-Al alloys to determine the properties of the alloy after being treated. From the test, it was found that the hardness value increased from 303 HBN to 375 HBN (1 hour), 351 HBN (3 hours), and 320 HBN (5 hours), and there was a change in crystal size, dislocation density, and lattice strain.
Pemodelan dan simulasi pengeboran pada proses pengeboran tulang dalam pembedahan ortopedi Eko Wahyu Saputra; Yanuar Burhanuddin; Suryadiwansa Harun
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3359

Abstract

Dalam pembedahan ortopedi, mata bor berfungsi sebagai alat bantu membuat lubang untuk sekrup dalam upaya perbaikan fraktur atau pemasangan perangkat prostetik. Selama proses pengeboran berlangsung akan meyebabkan peningkatan suhu pada area pengeboran, kenaikan suhu melampaui batas yang diijinkan akan mengakibatkan matinya sel-sel tulang akibat kehilangan suplai darah yang disebut dengan nekrosis. Untuk mencegah peningkatan suhu berlebihan tersebut, salah satu cara yang dapat dilakukan adalah dengan melakukan pemilihan geometri mata bor menggunakan finite-element analysis model tiga dimensi untuk mendapatkan nilai temperatur pengeboran tulang yang serendah mungkin. Penelitian ini berfokus pada nilai point angle 118°, yang dikombinasikan dengan nilai helix angle 13°, 20°, 28° dan 30°. Dari kombinasi tersebut menghasilkan nilai temperatur optimal pada helix angle 28° dengan suhu maksimum pada 38.814° C.
Pengaruh konversi mesin genset 160 cc berbahan bakar bensin dengan converter kit liquefied petroleum gas terhadap emisi gas buang Berto Yusuf Nugroho; Ahmad Arby Trihatmojo; Anggit Bayu Sasongko; Yoga Arob Wicaksono
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3426

Abstract

Usability of portable generators fueled by petroleum as a substitute for the community's primary source of electrical energy when the main electricity source black out is still the best choice for the community, limited space for good air circulation will make emissions harmful to users or community, innovation is needed to reduce the levels of exhaust emissions produced by saving fuel or converting the fuel used, one of which is by replacing the carburetor in portable generators fuel engine with a converter kit using Liquified Petroleum Gas (LPG). In this study, the lowest use of petroleum fuel was obtained at 36.3 ml/minute or 0.406 liters/hour, consumption of LPG fuel is 0.159 liters/hour, exhaust emission test results obtained at 5.3% CO emissions from petroleum fuel and 125 ppm for HC fuel oil emissions, compared to the results of LPG CO exhaust emission tests. of 0.90% and fuel HC emissions ar LPG of 41 ppm, the use of LPG fuel in Portable Generators with a converter kit has the effect of using more efficient fuel and very low fuel emissions.

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