SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin is an open access, peer-review journal which publishes original and review articles that advance the understanding of both the fundamentals of engineering science and its application to the solution of challenges and problems in mechanical engineering systems, machines and components. The editorial team aims to publish high quality and highly applied research and innovation that has the potential to be widely disseminated, taking into consideration the potential mechanical engineering that it could generate.
Articles
269 Documents
<![CDATA[Development of new renewable energy hybrid system for simple home electricity purposes ]]>
<![CDATA[Rahmatullah Kasim]]>;
<![CDATA[Khairul Umurani]]>
<![CDATA[ SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL ]]>
Publisher : <![CDATA[University of Muhammadiyah Jakarta ]]>
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DOI: 10.24853/sintek.16.1.46-52
<![CDATA[The need for energy has now become a major problem that is increasingly complex in all countries in the world to support their economic growth. These various conditions require the need for new renewable energy that can answer these challenges. Wind energy and solar cells have become one of the solutions to reduce dependence on fossil energy. Wind energy and solar energy are actually the most promising sources of energy considering their sustainable nature and very large amounts to be used as electrical energy for lighting in simple people's homes. A wind turbine is a prime mover that utilizes wind energy to drive the turbine blades which are then transformed in the form of mechanical energy to rotate the turbine shaft. Solar energy is energy in the form of light and heat from the sun, which technology can be applied to a variety of energies, including solar thermal electrical energy. New and renewable energy with hybrid or combined systems for home-scale power plants is very much needed to ensure the continuity of the existence of electrical energy and efficiency. The combined and hybrid system models that have been developed and applied are hybrid solar cells and wind turbines.]]>
<![CDATA[Penambahan sr pada aluminium paduan a356 dengan metode lost foam casting (lfc) ]]>
<![CDATA[Suherman Suherman]]>;
<![CDATA[Ilmi Ilmi]]>;
<![CDATA[Amirsyam Amirsyam]]>;
<![CDATA[Abdan Syakura]]>
<![CDATA[ SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL ]]>
Publisher : <![CDATA[University of Muhammadiyah Jakarta ]]>
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DOI: 10.24853/sintek.16.1.18-22
<![CDATA[The casting process and cooling rate determine the morphology of the authentic silicon particles produced in aluminum alloys. The slow cooling rate of aluminum alloy through the Lost Foam Casting (LFC) method a result of low mechanical properties. The purpose of this study was the effect of added Strontium (Sr) modifier to aluminum A356 on the microstructure and mechanical properties of the LFC method. The Aluminum A356 alloys are melted using a crucible and poured at a temperature of 730 oC on the surface of the polystyrene pattern which has been coated with refractory materials. The addition of the Strontium modifier was studied for its effect on changes in microstructure and mechanical properties (hardness, impact strength, and tensile strength). The results of this study indicate a change in the authentic silicon particles from an acicular to a filamentous form. The value of hardness, maximum tensile strength, and impact strength on the castings increased after the addition of Sr modifier to aluminum alloy A356.]]>
<![CDATA[Peningkatan konduktivitas termal oli sintetis sebagai fluida pemindah panas melalui pencampuran serbuk besi ]]>
<![CDATA[Adian Rahmat]]>;
<![CDATA[As Natio Lasman]]>;
<![CDATA[Dwi Rahmalina]]>
<![CDATA[ SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL ]]>
Publisher : <![CDATA[University of Muhammadiyah Jakarta ]]>
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DOI: 10.24853/sintek.16.1.53-60
<![CDATA[Utilization of renewable energy that is specifically sourced from the sun is a good choice to be applied in Indonesia considering the high intensity of the sun and an even supply throughout the year. Utilization of this energy can be focused on solar thermal energy which is produced using solar thermal power. One of the most important parts of solar thermal power is the heat transfer fluid which functions to absorb the heat from the source and transfer it to a thermal load or heat engine. This research focuses on the process of changing the function of heat transfer fluid sourced from synthetic mineral oil. The choice of synthetic mineral oil has many advantages, especially in terms of price and availability. The main problem is the nature of synthetic mineral oil which has low thermal conductivity; thus, improvements are needed to increase thermal conductivity through the addition of sensible materials. Three samples of synthetic oil were prepared, namely oil 10W-30, 10W-40 and 20W-40 and mixed with iron powder in the range of 4 - 6% by mass. The 10W – 40 synthetic oil has the best heat transfer performance due to the low Total Base Number value. The addition of Fe powder (6 wt%) can accelerate the process of absorption and heat dissipation in synthetic lubricant base hybrid fluid. This research also obtains a critical line graph that can be used as a reference in determining the working balance of hybrid fluid in solar thermal system applications.]]>
<![CDATA[Wear resistance of abradable-conductive powder deposited by using hvof with different surface preparation and spray distance ]]>
<![CDATA[Hendy Roesma Wardhana]]>;
<![CDATA[Rd. Dadan Ramdan]]>;
<![CDATA[Budi Prawara]]>;
<![CDATA[Erie Martides]]>;
<![CDATA[Riza Wirawan]]>;
<![CDATA[Bambang Widyanto]]>;
<![CDATA[Rochim Suratman]]>;
<![CDATA[Irma Pratiwi]]>
<![CDATA[ SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL ]]>
Publisher : <![CDATA[University of Muhammadiyah Jakarta ]]>
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DOI: 10.24853/sintek.16.1.23-29
<![CDATA[Along with many material failures due to worn steel components, HVOF (High Velocity Oxygen Fuel) coating based abradable material can be solution to overcome this problem. However, abradable-conductive material is still rarely used for coating, therefore it needs investigation to find out the optimum parameters of process. In this work, the surface treatment on substrate was carried out by the different methods such blasting, etching, and blasting-etching to obtain the rough surface. The spraying distance of HVOF process was varied on 20 cm and 30 cm. Blasting-etching are able to achieve the roughest surface of substrate. Meanwhile, the spray distance of 20 cm produces thicker layer than the longer spray distance. The combination of blasting-etching and the shorter spray distance are able to reach the optimum wear resistance as presented in pin-on-disc test.]]>
<![CDATA[Pengaruh quenching terhadap uji kekerasan dan uji impact disc brake cessna grand caravan 208b ]]>
<![CDATA[Moh. Ilham S. Pilisi]]>;
<![CDATA[Indreswari Suroso]]>;
<![CDATA[Noviana Utami]]>
<![CDATA[ SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL ]]>
Publisher : <![CDATA[University of Muhammadiyah Jakarta ]]>
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DOI: 10.24853/sintek.16.1.61-67
<![CDATA[Disc brake is a disc in the braking system (brake system) which is located on the landing gear. During braking, friction occurs between the disc brake and brake lining, resulting in high heat and deformation resulting in decreased service life of the disc brake. To overcome this problem, a research was conducted by providing quenching heat treatment using several cooling media, namely sea water, well water, oil SAE 40, and then carried out a vickers hardness test and a charpy impact test in order to determine the strength of the disc brake material. The results of this study show changes in the characteristics of the material that has been treated with heat quenching. Quenching produces a hard but brittle martensite phase. Quenching using seawater cooling resulted in the highest hardness of 584 VHN or an increase of 71%. The results of the Charpy impact test show that the highest impact price on raw material is 0.801 J/mm2 and the impact price on quenched material has decreased. This is due to the formation of a large amount of martensite phase, so that the quenched material produces high hardness and is brittle.]]>
<![CDATA[Pembuatan peralatan two in one (hand sanitizer dan hand dryer otomatis) ]]>
<![CDATA[Prantasi Harmi Tjahjanti]]>;
<![CDATA[Ali Akbar]]>;
<![CDATA[Rachmat Firdaus]]>;
<![CDATA[Alfiansyah Satrio Wicaksono]]>;
<![CDATA[Mohammad Afif Fajar]]>;
<![CDATA[Ajitiyo Dananjoyo]]>
<![CDATA[ SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL ]]>
Publisher : <![CDATA[University of Muhammadiyah Jakarta ]]>
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DOI: 10.24853/sintek.16.1.1-5
<![CDATA[The development of the Corona virus or COVID-19 in Indonesia is still developing until now. The best way of prevention to avoid the factors that can cause this viral infection, one of which is routine hand washing with soap and water or hand sanitizer. The problem is hand sanitizer that exist now always using hand power to squeeze or spray them like holding/pressing, we can think if this hand sanitizer is for the public, how many hundred hands of different people will hold it, and of course this actually causes infected with the Corona virus. Aim of the study is make two in one equipment (hand sanitizer and handdryer automatic), which means that the equipment can be used for hand sanitizer without having to hold/press/squeeze the hand sanitizer and also have the dryer. The results obtained when the fingers are closer to the hand sanitizer, it will release the liquid in ± 3 seconds, and if the liquid is a gel it will come out in about ± 5 seconds. For the handdryer, it takes ± 2 seconds to remove the hot air.]]>
<![CDATA[Rancang bangun mesin pengiris tempe otomatis ]]>
<![CDATA[Hasan Hariri]]>;
<![CDATA[Muhammad Al Fathar]]>;
<![CDATA[Ivan Bachtiar]]>
<![CDATA[ SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL ]]>
Publisher : <![CDATA[University of Muhammadiyah Jakarta ]]>
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DOI: 10.24853/sintek.16.1.30-40
<![CDATA[Tempe slicer is one of the food industry machines that is still developing, however, in various parts of Indonesia the machine still uses the manual method for slicing tempe as its main raw material. With that, to maximize the production of tempe by developing an automatic tempe slicer to increase the capacity of the tempeh slices. The fabrication process of this machine includes planning, drawing design, frame assembly and others. The manufacture of this automatic tempe slicer goes through various stages such as: measuring, cutting, welding, painting, assembling and testing. The tempe slicer is designed using the main actuation, namely an electric motor and a knife to slice the tempe. This automatic tempe slicer is equipped with a blade driven by a shaft that generates power from an electric motor transmitted by the pulley and v-belt.]]>
<![CDATA[Fabrication and simulation studies on sound absorption coefficient of natural microfibers reinforced silicone rubber ]]>
<![CDATA[Afira Ainur Rosidah]]>;
<![CDATA[Vuri Ayu Setyowati]]>
<![CDATA[ SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 2 (2022): SINTEK JURNAL ]]>
Publisher : <![CDATA[University of Muhammadiyah Jakarta ]]>
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DOI: 10.24853/sintek.16.2.104-111
<![CDATA[Silicone rubber (SR) is known as stable and able to get through an extreme environment. Moreover, the combination of SR and natural fiber as the composite for the sound absorption application is still limited. For this reason, this study was aimed to fabricate the natural fiber-reinforced porous SR for the sound absorption material. Then, the composites were simulated using multilinear regression method to predict the sound absorption coefficient and its factor influence. The composite fabrication was started with the alkalization of oil palm fiber treatment. Furthermore, the porous SR were prepared using NaCl filler to form the pores. Then, the specimen containing NaCl was soaked in warm water and all specimens were dried at 110 °C to remove the remaining water. The addition of fibers enhances the density value to the highest value of 1.061 g/cm3 with 6 wt% microfibers. The higher the microfiber addition led to the higher α value in low frequency, it occurred at SR/6 wt% microfibers with the α value of 0.356. Additionally, the most suitable equation with the smallest error is Equation 6 which has the RMSE and values of 0.05234 and 0.6138, respectively.]]>
<![CDATA[Coolant circulation improvement on the chip tub of the machine lnc okuma 0002 pt. komatsu undercarriage indonesia ]]>
<![CDATA[Muhammad Aditya Artha Prastama]]>;
<![CDATA[Iwan Nugraha Gusniar]]>
<![CDATA[ SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 2 (2022): SINTEK JURNAL ]]>
Publisher : <![CDATA[University of Muhammadiyah Jakarta ]]>
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DOI: 10.24853/sintek.16.2.143-148
<![CDATA[In general, coolant is a cooling medium used to cool workpieces and cutting tools during the machining process. In PT Komatsu Undercariage Indonesia, the LNC OKUMA 0002 chip crankcase contained a lot of stagnant coolants. The factor that causes the coolant to stagnate is that the growl is wasted through the chip conveyor and the coolant is carried along with the growl to the chip. Changing the coolant fluid needs to be done in a certain phase because the use of the coolant for too long causes sand to accumulate. Excessive sand can close the cooling duct system. The quality of the coolant can deteriorate due to heat and a dirty environment. In addition, corrosion on the radiator can also result in the deposition of dirt on the coolant. When this happens, the engine overheats easily and triggers a stall. The repairs that have been carried out are examining and repairing the components of the coolant system by adding a coolant channel and a pump that functions to suck the coolant so that the coolant returns to the LNC OKUMA 0002 engine.]]>
<![CDATA[Perancangan dan analisis struktur statis terhadap fuselage versi maritim dari prototipe uav v5 produksi ]]>
<![CDATA[Gabriel Sutantyo]]>;
<![CDATA[Sheila Tobing]]>;
<![CDATA[Budi Atmoko]]>
<![CDATA[ SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 2 (2022): SINTEK JURNAL ]]>
Publisher : <![CDATA[University of Muhammadiyah Jakarta ]]>
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DOI: 10.24853/sintek.16.2.68-76
<![CDATA[PT. Famindo Inovasi Teknologi (PT. FIT) is a company that works in the drone industry, and currently PT. FIT receives a request from Badan Keamanan Laut Republik Indonesia (BAKAMLA) to design a drone that can float on water. Therefore, my purpose is to design a fuselage of the maritime version from UAV V5 prototype produced by PT. FIT that have a lower fuselage volume of 30 liters and able to withstand a 5G loading. The lower fuselage is designed at 30 liters because the mass of the finished drone is 25 kg. The design will include the shape of the fuselage, rib structure and support structure. After the design is complete, the next step is simulation using Solidworks with static simulation features. The fuselage simulation is done with a mesh size of 8 mm according to the mesh independence test method and 5G loading. The result of the fuselage simulation shows a maximum stress of 17.142 MPa and a maximum displacement of 0.614 mm, so the fuselage of the maritime version from UAV V5 prototype produced by PT. FIT design can be declared as safe.]]>
