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Program Studi Teknik Mesin Universitas Tarumanagara Kampus 1, Gedung L lantai 5 Jl Let. Jend. S. Parman No. 1 Jakarta Barat 11440 Indonesia
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INDONESIA
Jurnal Ilmiah Teknik Mesin Poros
Published by Universitas Tarumanagara
ISSN : 1410684     EISSN : 24424501     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Focus and Scope Jurnal ini fokus pada hasil penelitian para dosen dan akademisi dalam bidang keilmuan: - Perancangan Mekanikal - Otomasi, Robotika - Konversi Energi - Energi Terbarukan - Proses Manufaktur - Material dan Metalurgi - Mekanika Komputasi (CFD, FEA)
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 7 Documents
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Search results for , issue "Vol. 18 No. 1 (2022): Jurnal Ilmiah Teknik Mesin Poros" : 7 Documents clear
USULAN DESAIN STOPPER SEBAGAI ALAT BANTU PROSES GROOVING PADA PART SUCTION COVER POMPA SENTRIFUGAL TIPE Y DI PT X Ricky Soleman Manikari; Steven Darmawan
POROS Vol. 18 No. 1 (2022): Jurnal Ilmiah Teknik Mesin Poros
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v18i1.18031

Abstract

Centrifugal pumps have a design consisting of an impeller rotor and an inlet channel in the middle. When the rotor of impeller rotates, the fluid will flow into the casing due to the centrifugal force. Suction Centrifugal pump casing is designed in the form of a diffuser that surrounds the pump impeller. This diffuser is more commonly known as the volute casing. In accordance with the function of the diffuser, the volute casing serves to reduce the flow velocity of the fluid entering the pump. The stopper is a fixture that is used as a support for the suction cover part during the grooving process. Stopper is used so that the surface turning results are not oval . Grooving is a process to form a groove on a workpiece by using a lathe or milling machine and others . To give the results of the groove surface on the suction cover, it is necessary to carry out a grooving process. The grooving process is used to smooth the grooves on the suction cover surface. However, because the diameter of the suction cover is quite large, an additional fixture is needed to support the suction cover so that it remains in an even position during the grooving process. The stopper is important thing in the process of grooving suction cover type E-100 50 with a spindle speed of 180 rpm. The dimensions of the proposed stopper are 155.88 mm long, 150mm wide, and 150m high. So this stopper fixture must be strong and stable during the machining process. The purpose of this paper is to propose a 3D fixture design during the process of grooving the suction cover E 100 50. This research was carried out theoretically using data machining and parts  obtained during observation. Compilation of observational data in the form of images and strength analysis in 3 dimensions using Autodesk Fusion 360 software. The results of this study are divided into 2 parts, 3D design and strength analysis including von mises stress, displacement and safety factor. From the results of the simulation von mises in picture 8, it shows that the stress that occurs is 32.59 MPa at the most critical part. The critical part is the upper support section which is the center of support. From the results of the simulation displacement in picture 9 it shows that the change (displacement) in the design stopper maximum so that deformation occurs, which is indicated by a red color of 0.002668mm. Changes above 1mm the material will break. This shows that the shape and dimensions of the stopper are said to be in the safe category. From the picture of the results of thesimulation Safety Factor in picture 10, it shows that the value of the safety factor for a sufficient level of safety is 6.353. If it is less than the value of the safety factor, the material has been deformed or broken because the maximum stress is comparable to or greater than the yield strength of the material.
PENGARUH VARIASI CAMPURAN BAHAN BAKAR BIODISEL MINYAK JELANTAH TERHADAP UNJUK KERJA MOTOR DISEL SATU SILINDER GENERATOR SET Ruzaki Fatra Jaya; Lathifa Putri Afisna; M.Riyan Kaspari; Krisna Pratama Wibisono
POROS Vol. 18 No. 1 (2022): Jurnal Ilmiah Teknik Mesin Poros
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v18i1.18601

Abstract

Meningkatnya konsumsi energi bahan bakar fosil menjadi permasalahan yang perlu ditinjau ulang ditandai dengan ketidak seimbangan antara kebutuhan dan sumber energi yang tersedia. Pemanfaatan minyak jelantah sebagai bahan bakar biodiesel dipengaruhi oleh peran dari proses pencampuran dan penambahan katalis yang digunakan. Beberapa metode yang digunakan mulai dari proses esterifikasi, transesterifikasi hingga pemurnian bahan bakar. Penelitian ini bertujuan untuk menganalisa unjuk kerja motor diesel satu silinder dengan variasi beban heater 370, 740, 1110,1480, dan 1850 watt dengan interval kenaikan 370 watt dan putaran mesin konstan 1500 rev/min berbahann bakar dengan formulasi digunakani BMJ0 (dexlite murni), BMJ10, dan BMJ20. Didapatkan hasil daya efektif generator terbesar sama yaitu 1,92 (kW), konsumsi bahan bakar spesifik (sfc) terendah BMJO sebesar 0,05 kg/kW.jam, torsi terbesar yaitu pada bahan bakar BMJ20 sebesar 12,25 (N.m), efisiensi thermal terbesar pada bahan bakar BMJ0 sebesar 1,56%, dan BMEP terbesar pada bahan bakar BMJ20 sebesar 47,36 kPa.Kata Kunci: minyak jelantah, esterifikasi, transesterifikasi, performa motor diesel
SOLAR PHOTOVOLTAIC DAN PENERAPANNYA MENJADI POWER BANK 10000 MAH Goklas Miracle Siahaan; Lathifa Putri Afisna; Fransisco Dino Permadi; Oktavirnanda Oktavirnanda P
POROS Vol. 18 No. 1 (2022): Jurnal Ilmiah Teknik Mesin Poros
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v18i1.18626

Abstract

Consumers of mobile devices expect manufacturers to produce devices that will be an efficient source of electrical energy. The battery currently used in the smartphone allows the device to operate for several hours. PowerBank  extends the operating time of the device without the need to charge it through a charger that is connected to the mains and the most important feature that determines the quality of a power bank is its capacity. This paper first analyzes the effect of the number of solar cells on the application of a 10000 mAh PowerBank. It has been shown in this study that the capacity of the 10000 mAh PowerBank can charge a series of 2, 4, and 8 solar cells. What has also been investigated is Then testing it for several types of mobile devices. The results show that using a 2, 4, and 8 solar cell circuit type can only charge handheld cell phones with a battery capacity of 2000 mAh.
OPTIMASI PARAMETER 3D PRINTING TERHADAP WAKTU DAN WARPING DENGAN PENDEKATAN METODE TAGUCHI Mase Hideaki; Agus Halim; Erwin Siahaan
POROS Vol. 18 No. 1 (2022): Jurnal Ilmiah Teknik Mesin Poros
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v18i1.19143

Abstract

Fused Deposition Modeling (FDM) is one of the most popular 3D printing technology that used at academic and business purposes due to the easiness of the manufacture process that it held. But, one of the most major problems that usually occur in the industry is the frequentness of damaged and deficiency on the result of printing, especially when it is printed using the ABS filament. Although, ABS is one of the filaments which has a lower cost compared to others, but has a bigger value per gram on the printing sectors compared to PLA filaments. It could be a good business prospect if it can be handled on the problems. Therefore, the knowledge on how to prevent the problems, and finding an efficiency on the various of infill pattern, would be one of the key of success in this industry. In this article, a research on finding optimum parameters against the time and quality of the product using the Taguchi method, and also ASTM D-638 is also needed to find the best infill pattern against the tensile strength that an ABS filament have on the mechanical properties. As a result, the parameters, nozzle temperature and bed temperature have a small impact on producing time, but have a greater impact on the quality of printing product. Besides, the infill pattern which has the biggest tensile strength on smaller density is Trihexagon. Meanwhile, the Lines infill has the biggest standard of deviation, which endure the most stress on the bigger density compared to Triangles and Trihexagon.
AERODYNAMICS CHARACTERISTICS DEVELOPMENT of TARUMANAGARA ECO-VEHICLE (MOBIL IRIT UNIVERSITAS TARUMANAGARA) USING CFD METHOD Steven Darmawan; Harto Tanujaya; Janssen Paolo Yorkie
POROS Vol. 18 No. 1 (2022): Jurnal Ilmiah Teknik Mesin Poros
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v18i1.20805

Abstract

Vehicles experience the forces of aerodynamics at various degrees and magnitude. The impact of aerodynamic must be considered because it affects the efficiency of the object. Because aerodynamic forces highly affect a vehicle’s efficiency, improvement in aerodynamics characteristics will improve the vehicles efficiency. However, the aerodynamic characteristic involves vehicle profile, dimensions. Designers now have the option of using a CFD software to simulate and calculate the aerodynamic properties of an object before production. The 2 objects on this research are an improved version of Mobil Irit Universitas Tarumanagara body by modifying its length therefore reducing the angle of the body, the body is named 3a and 3b. CFD simulation of body 3a and 3b is used to determine whether the flow characteristic is improved by the length modification of the object, and will be done using ANSYS Workbench R1 Academics Version at 5 different inlet velocity (1,39 m/s; 2,78 m/s; 4,17 m/s; 5,56 m/s; and 12,5 m/s) and will use a 3D simulation with single phase fluid. Subject 3a has 42699 nodes 234941 elements, subject 3b has 49535 nodes 272509 elements. The result shows a reduction in wake size at the back of subject 3b, whereas wake size increased in subject 3a. The drag coefficient result in reduction on 3b and an increase in 3a.
KONTROL POSISI PUTARAN MOTOR DC MENGGUNAKAN ARDUINO DAN PID Adhitiya Satiawan Suryadata; Agus Halim; Rosehan Rosehan
POROS Vol. 18 No. 1 (2022): Jurnal Ilmiah Teknik Mesin Poros
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v18i1.23224

Abstract

The development of industrial technology is growing rapidly, especially in the field of control systems, one of the controllers that is often used, namely PID which is composed of proportional, integrals, and derivatives, each control has a different role and to determine the value of each control sometimes trials are needed to find the right value. The advantages of this type of controller are that the algorithm used is simple but with accurate output, in this study a potentiometer is used for determining the set point and then an encoder which is useful for reading DC motor rotation and arduino.uno as a medium in implementing the PID system. This journal aims to be a learning medium to determine the parameters on the PID. The method used is a systematic method that starts with making a literature study that will determine the detailed requirements. After that, it is continued with the design of the microcontroller circuit using the Tinkercad website and doing 2D and 3D designs. The results of the design obtained that this circuit can work perfectly because every input given by the potentiometer can drive the motor smoothly and accurately through the encoder reading.
OPTIMASI SAMBUNGAN ROTARY FRICTION WELDING (RFW) PADA ALUMINIUM DENGAN VARIASI UKURAN DIAMETER Yustiasih Purwaningrum,; Aldino Data Pratama,; Fathurohman Fatha
POROS Vol. 18 No. 1 (2022): Jurnal Ilmiah Teknik Mesin Poros
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v18i1.23291

Abstract

Sambungan las banyak digunakan pada konstruksi dan alat permesinan. Silinder pejal salah satu bentuk material yang sulit disambung dengan menggunakan pengelasan konvensional. Hal tersebut diatasi dengan menggunakan pengelasan Rotary Friction Welding (RFW). Tujuan penelitian ini adalah mendapatkan sifat fisik dan mekanik yang optimum pada sambungan las RFW dengan variasi diameter logam induk. Material yang digunakan adalah Aluminium 4017 dengan variasi diameter 10 mm, 13 mm, dan 16 mm.Proses pengelasan RFW dilakukan menggunakan mesin bubut dengan kecepatan putar spindle mesin bubut yaitu 1170 RPM dan jarak penekanan yaitu 10 mm. Dari hasil pengamatan metallografi makro hasil sambungan terdapat sedikit porositas pada berbagai variasi diameter. Dari pengujian mekanik diketahui bahwa specimen dengan diameter 16 mm mempunyai sifat yang getas karena mempunyai nilai kekerasan tinggi, kekuatan tarik tinggi dan nilai regangan yang paling rendah. Hasil pengujian tarik, nilai tegangan maksimum dan nilai regangan tertinggi yaitu dengan diameter 10 cm , dengan nilai tegangan tarik 165,36 MPa dan nilai regangan 29,81%. Untuk pengujian bending di peroleh tegangan tertinggi adalah diameter 10 mm yang nilainya adalah 209,99 MPa diikuti oleh diameter 13 mm yaitu 158,36 MPa dan nilai kekuatan bending terendah terdapat pada hasil las dengan diameter 16 mm dengan nilai

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