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Scientific Journal of Mechanical Engineering Kinematika
Published by Universitas Lambung Mangkurat
ISSN : 26559048     EISSN : 2655903X     DOI : http://dx.doi.org/10.20527
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Scientific Journal of Mechanical Engineering Kinematika (SJME Kinematika) is a mechanical engineering journal that focuses on Energy, Applied Mechanics, Materials, Manufacturing Processes. SJME Kinematics journal publish in Indonesian and receive in English. Scientific Journal of Mechanical Engineering Kinematika (SJME Kinematika) is an Open Access Journal that is available for free on online media. We are not only accept journals that focus on the derivatives of the four fields below, but also the possibility of an integrated focus of fields from several fields.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 133 Documents
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ANALISA PRODUKTIVITAS EXCAVATOR KOMATSU PC 2000 PADA OVERBURDER REMOVAL DI PT. JHONLIN BARATAMA I Wayan Wawan Mariki; Duan Arpilanoor; Heldayanti
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 2 (2021): SJME Kinematika Desember 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i2.194

Abstract

In mining activities, one of the overburden activities is heavy equipment working at PT. Jhonlin Baratama in digging and loading using a PC 2000 excavator for the productivity process. With the company's production target of 865 BCM/hour. This research aims to determine the data of the cycle time in the excavator productivity of the excavator PC 2000 by using the calculation method match factor. The results of the calculation of the total average cycle time of the excavator is PC 200030.33 seconds, with a Bucket capacity of 12 BCM, Fill factor 0.9%, Swell Factor 0.8 with efficiency work 0.79%, while the total average HDK conveyance is Komatsu 78510.61 seconds and HDK Komatsu 465 is 9.99 minutes, from the calculation of the productivity of the excavator PC 2000 of 810 BCM/hour so that the production target has not been achieved optimally because in processing the macth factor is 0.74.
SIMULASI KARAKTERISTIK TERMAL PADA RUMAH BANJAR BUBUNGAN TINGGI DENGAN KOMPUTASI DINAMIKA FLUIDA M Rizki Ikhsan; Madschen Sia Mei Ol Siska; Nur Hidayah
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 2 (2021): SJME Kinematika Desember 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i2.195

Abstract

The Banjar traditional house with a high roof (Bubungan Tinggi) is a traditional house for the royal aristocracy. In modern times, this type of building is used as an architectural design for government buildings. Traditional house as a cultural heritage of local wisdom, where the house is designed to be able to adapt to the environment, so that people who are in it can feel comfortable. In this study, the thermal characteristics of the Banjar high ridge house were studied, using the CFD simulation method. The results obtained that the high ridge roof design is very beneficial in terms of absorption of solar energy, where the roof has a small geometric coefficient (Rb), so it is not exposed to much frontal sunlight. The shape of the high roof will also create a lot of shadows that shade the maximum. In the CFD simulation results, it was found that the high ridge roof became a cumulated place for hot air, due to the difference in pressure and bouyancy force, so that hot air would rise and collect on a higher roof. To avoid the accumulation of more hot air, mechanical modification that can be done is to install a blower that can blow hot air into the environment, so that it can help circulate air in the room.
PENGARUH VARIASI BENTUK (SILINDER PENJAL DAN SILINDER BERONGGA), UKURAN PARTIKEL DAN TEKANAN TERHADAP KARAKTERISTIK PEMBAKARAN BRIKET LIMBAH ARANG ALABAN-SEKAM PADI akhmad syarief; Fadliyanur; Dhanu Suryanta; Hansen Rivaldo Napitupulu; Aulia Aufa Ramadhasari; Defrihans Galang Putranto; Lukmanul Hakim
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 2 (2021): SJME Kinematika Desember 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i2.196

Abstract

The purpose of this study is to determine which shape of alaban bark charcoal waste briquettes is the most efficient according to its combustion characteristics. This research was conducted using experimental methods in the laboratory. It starts from filtering the charcoal waste, compressing into the wanted shapes and then combustion characteristics test. The manufactured briquettes are using 20 and 40 mesh of particle sizes, 50 kg/cm2 and 100 kg/cm2 holding pressure. The ratio between alaban charcoal waste and rice husk is 90 : 10, with 22 gram as the weight each. The shapes are solid cylinder and hollow cylinder. Combustion characteristic test used to determine the initial ignition, combustion rate and combustion temperatur. The results showed that hollow cylinder briquettes with 40 mesh particle size and 100 kg/cm2 holding pressure had the most efficient initial ignition and combustion rates with the combustion rate of 0,22 g/min. Meanwhile solid cylinder briquettes with 40 mesh particle size and 50 kg/cm2 holding pressure had the lowest initial ignition and combustion rates which is 0,14 g/min for the latter.
UJI KEKERASAN PADUAN Al-6,7% Cu DENGAN VARIASI TEMPERATUR TUANG DAN TEKANAN HASIL PROSES SQUEEZE CASTING Rudi Siswanto; Ma’ruf; Galih Aprianto
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 2 (2021): SJME Kinematika Desember 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i2.198

Abstract

Pure aluminum has good castability but mechanical properties not good. Therefore, to improve its mechanical properties, other alloying elements such as magnesium, copper, manganese, silica and some are added. The research was conducted to determine the effect of pouring temperature and pressure on the hardness value of the metal casting material. The casting material uses an aluminum-copper alloy (Al-6.7%Cu). The casting method uses squeeze casting, where the molten metal is allowed to cool in a closed metal mold and is pressurized. The pouring temperature was varied 710°C, 730°C and 750°C. Mixing time for molten metal is 90 seconds with a stirring rotation of 600 Rpm. The metal pressure in the mold was varied from 0 MPa, 2.5 MPa, 5 MPa and 7.5 MPa, with a pressing time of 60 seconds. The temperature of the metal mold used is 250°C. Based on the results of the Brinell scale hardness test (HBN) that the highest hardness value is at a pouring temperature of 710°C with a pressure of 7.5 MPa, the hardness value is 68 HB and the lowest hardness value is at a pouring temperature of 750°C with a pressure of 0 MPa, the hardness value is 34. HB. The results showed that the higher the pouring temperature, the lower the hardness value and the greater the pressure, the higher the hardness value
EFEKTIVITAS PENGGUNAAN ARANG TEMPURUNG KELAPA, ARANG AMERIKA, ARANG KAYU LABAN DAN ARANG KAYU GALAM TERHADAP PEMURNIAN BIOGAS Achmad Kusairi Samlawi; Hasan Sajali
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 2 (2021): SJME Kinematika Desember 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i2.200

Abstract

One of the problems contained in biogas is carbon dioxide that can reduce the burning calorific value of biogas. It is necessary to purify. This research aims to reduce the levels of carbon dioxide in the biogas. This research was conduct with passing biogas from sanitary landfills to biogas purification insulators containing charcoal adsorption media. After the adsorption process, the biogas is continued and collected in the tube until the pressure reaches 2 bar and then tested the carbon dioxide level bypassing biogas to the chamber for carbon dioxide reading using CO2 analyzer. The result of reduction of carbon dioxide from biogas testing without purification was 13955,03 ppm and after purified by coconut shell charcoal decreased to 8713,78 ppm with effectivity purification equal to 37,56% and density of 0,688 gr/cm3, with American Charcoal decreased to 7399,41 ppm with the effectiveness of purification by 46.98% and density of 0,817 gr/cm3, with laban wood charcoal decreased to 11310.07 ppm with the effectiveness of purification of 18.95% and density of 0,448 gr/cm3 and with Glam wood charcoal decreased to 12867.84 ppm with the effectiveness of purification of 7.79% and density of 0,446 gr/cm3. So that the effectiveness of purification of the highest biogas is by using American Charcoal with the absorption of 46,98% and has the highest density value of 0,817 gr/cm3, for the magnitude value of charcoal density is directly proportional to the magnitude absorption of carbon dioxide and also related with the magnitude surface area, where the higher the surface area then, the greater the adsorption capacity to carbon dioxide.
PERFORMANSI MOTOR BAKAR 6 TAK DENGAN 2 KALI PEMBAKARAN MENGGUNAKAN BAHAN BAKAR PERTAMAX DAN ETANOL Elandi; Eko Siswanto; Agung Sugeng Widodo
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 2 (2021): SJME Kinematika Desember 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i2.203

Abstract

The six-stroke combustion engine is a refinement of the four-stroke engine by adding 2 steps from the four-stroke combustion engine. The 2 steps in question are the second compression stroke and the second expansion stroke, so in one work cycle, there are 2 compressions and 2 combustions. The method used is a direct experimental research method by testing the intended object. Based on previous research, different fuels affect performance (torque, power, and fuel consumption). This study aims to obtain the performance value of Pertamax and Ethanol fuel in a six-stroke engine, the fuel used is Pertamax fuel with a purity of 100% and Ethanol with a purity of 99.7%. Based on the research, analysis, and discussion results, the performance of a six-stroke combustion engine with 2 combustions using Pertamax and Ethanol fuels concluded that the maximum torque using Pertamax fuel is 8.15 N.m at 7200 rpm engine speed. For comparison, Ethanol fuel is 6.59 N.m at 7200 rpm engine speed, the average torque of Pertamax fuel is 1.16% higher than Ethanol fuel. Maximum power for Pertamax fuel is 8.25 HP at 7200 rpm engine speed. For comparison, Ethanol fuel is 6.67 HP at 7200 rpm engine speed.
PENGARUH DAYA PEMANASAN MICROWAVE OVEN TERHADAP KEKUATAN TARIK KOMPOSIT SERAT DAUN NANAS BERMATRIK EPOXY Redi Bintarto; Moch. Syamsul Ma’arif; Fransisca Gayuh Utami Dewi; Sugiarto Sugiarto; Nurkholis Hamidi; Pudya Heryana
Scientific Journal of Mechanical Engineering Kinematika Vol 6 No 2 (2021): SJME Kinematika Desember 2021
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v6i2.207

Abstract

This study aims to determine the effect of microwave oven heating power on pineapple leaf fiber on the tensile strength of epoxy matrix composites. In this study, the composite reinforcement used was pineapple leaf fiber without treatment and pineapple leaf fiber heated using a microwave oven with 250W, 440W, and 715W power for 15 minutes after being given 6% NaOH immersion for 2 hours. The composite manufacturing method used is the vacuum assisted resin infusion method. Tensile testing was carried out on pineapple leaf fiber reinforced composite specimens according to ASTM D638-01 standard. The results showed that the higher the heating power of the microwave oven, the higher the tensile strength of the composite due to the better adhesion between the fiber and the epoxy matrix. The highest tensile strength was obtained in the pineapple leaf fiber-reinforced composite with a heating power of 715W of 147.9 MPa, then heating with a power of 440W of 136.6 MPa, heating with a power of 250W of 125.5 MPa, and the lowest on specimens of pineapple leaf fiber composite without treatment of 107.1 MPa. In addition, the SEM results also show that the surface roughness of the fiber increases with the addition of heating power and the wettability results also show that the wettability between the fiber and the epoxy matrix is ​​getting better as the heating power of the microwave oven increases.
DESAIN DAN ANALISIS PENGARUH VARIASI GAYA TEKAN PADA ALLEN KEY MENGGUNAKAN METODE FINITE ELEMENT ANALYSIS Angger Bagus Prasetiyo; Kartinasari Ayuhikmatin Sekarjati; Sigiet Haryo Pranoto; Sutrisna Sutrisna
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 1 (2022): SJME Kinematika Juni 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i1.201

Abstract

Allen key is a tool that is used to tighten, loosen, and remove hexagon head bolts. Auxiliary equipment must be capable of withstanding the weight and contact. To test the effect of deformation and a design's safety factor, an Allen key modelling simulation was used. The ANSYS R19.2 program aids in modelling analysis. The deformation value was about 8.9135mm, the strain was 2.2 x 10-3mm, and the stress was 4.54 x 102Mpa with the greatest value at the load variation of 325N, the deformation value was about 8.9135mm, the strain was 2.2 x 10-3mm, and the stress was 4.54 x 102Mpa. Each loading variation has a safety value of 15, which shows the design, variation, and kind of material that is safe to use up to 325N loading.
STUDI EKSPERIMEN PENGARUH PENGGUNAAN ENDPLATE BERLUBANG PADA TURBIN SAVONIUS Lillahulhaq, Zain; Masfufiah, Ilmiatul; Amirullah, Irsyad
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 1 (2022): SJME Kinematika Juni 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i1.202

Abstract

The Savonius turbine is widely used because it has a simple design. However, the Savonius turbine has a lower efficiency than the Horizontal Axis Wind Turbine (HAWT). Several studies have been conducted to increase the efficiency of the Savonius turbine. Turbine performance can be improved by reducing the negative vortex by creating a flushing effect. This experiment was conducted to determine the impact of circular cut-off end plates on the Savonius turbine. The research results are shown through turbine performance data on wind turbine angular speed, electric power, static torque, and efficiency. The wind turbines with circular cut-off endplates had higher angular velocities than conventional Savonius turbines. The angular velocity measurement is carried out when the turbine is unloading. Meanwhile, the electric power and static torque of a conventional turbine are more significant than a modified turbine. The measurement of electric power and static torque is carried out when the turbine is in a generator-loaded condition (loading).
KONFIGURASI MESIN PRESS PERMEN TERNAK OTOMATIS BERBASIS SISTEM PNEUMATIK DENGAN TIGA AKTUATOR DOUBLE ACTING CYLINDER Ikhwan Taufik; Nur Hidayah; Rahma Wulan Idayanti; Tri Puji Rahayu; Choirul Fatikhin
Scientific Journal of Mechanical Engineering Kinematika Vol 7 No 1 (2022): SJME Kinematika Juni 2022
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v7i1.208

Abstract

This research is an innovation carried out to meet the needs of animal feed. The way is to make feed supplements in the other various forms, like animal candy, molasses block, etc. The manufacture of feed supplements, which has been mostly done manually or by simple pressing machine. The making of animal candy was developed using an automatic animal candy press machine based on a pneumatic system with three double-acting cylinder actuators. This research to determine the schematic diagram of the pneumatic system simulation, design of the machine configuration, and determine the theoretical cycle time in the process of making animal candy using that machine. The method is creating a sequential diagram to determine one cycle time of making a candy and helping of software to make a schematic diagram simulation. The results are the movement system of the machine in one cycle is A- C- A+ B+ B- C+ according to the sequential diagram. The theoretical time required by the three actuators to complete one cycle of making an animal candy is 13.57 seconds (switch and losses are ignored).

Page 8 of 14 | Total Record : 133

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