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ROTOR: JURNAL ILMIAH TEKNIK MESIN
Published by Universitas Jember
ISSN : 1979018x     EISSN : 24600385     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
ROTOR merupakan jurnal yang diterbitkan oleh Jurusan Teknik Mesin Universitas Jember yang memuat artikel ilmiah dalam bidang Konversi Energi, Design/Perancangan, Teknik Produksi, Material serta bidang lain yang terkait dengan Teknik Mesin. Semua naskah yang diterima ROTOR diterbitkan secara global dalam bentuk elektronik. Hasil penelitian yang diterbitkan dalam jurnal ini diharapkan dapat menambah khasanah pengetahuan di bidang Teknik Mesin serta menjadikan sarana bagi para profesional baik dari dunia usaha, pendidikan, ataupun peneliti untuk menyebarluaskan perkembangan ilmu pengetahuan dan teknologi di bidang Teknik Mesin melalui publikasi hasil penelitian.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 6 Documents
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Search results for , issue "Vol 14 No 2 (2021)" : 6 Documents clear
ANALISIS KERUSAKAN MESIN AHU MENGGUNAKAN PENDEKATAN METODE FAILURE MODE AND EFFECT ANALYSIS Muhamad Ikhsan Ramadhan; Jojo Sumarjo; Farradina Choria Suci; Deri Teguh Santoso
ROTOR Vol 14 No 2 (2021)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (133.443 KB) | DOI: 10.19184/rotor.v14i2.26460

Abstract

The manufacturing industry is currently experiencing rapid development from various aspects. This aspect develops, it is increasingly necessary to find solutions to get more effective and efficient results. The Air Handling Unit (AHU) machine is a heat exchanger between cold water and air. The method used to identify the damage is the Failure Mode and Effect Analysis (FMEA) method. With this method, it is hoped that the point of damage that occurs can be known and can be planned for further maintenance. The results of the analysis of the FMEA method were obtained from related fields regarding the damage to the AHU engine components. Based on the results of the analysis of the Pareto diagram, it can be seen that there are several types of damage that dominant in the Air Handling Unit engine, namely; Motors & blowers; Pipe; Air Filter; Spray Nozzles. According to the principle of the Pareto diagram, which is 80/20, it means that 80% of damage to the machine is caused by 20% of the causes of damage. In this case damage the motor & blower, pipelines, air filters must be prioritized for maintenance so that the quality and efficiency of the engine is getting better.
PENGARUH TIPE SALURAN PENGECORAN TERHADAP SIFAT MEKANIK DAN STRUKTUR MIKRO ALUMINIUM AL 6061 DENGAN METODE SAND CASTING Heni Hendaryati; Mohamad Irkham Mamungkas
ROTOR Vol 14 No 2 (2021)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (518.169 KB) | DOI: 10.19184/rotor.v14i2.22086

Abstract

Industrial technology is developing very rapidly, one of which is in the field of metal casting. In the foundry case, aluminum is one of the most used types. It happen because of aluminum has many advantages than other types of metal, likely: good corrosion resistance, relatively high mechanical properties, and good formability. The purpose of this study was to determine the effect of variations in the duct system on the tensile strength and impact strength of Al 6061 aluminum using the sand casting method. A variation of this line system was to use a direct line, split line, and split line with an adder. From the results of the study, it was found that the ultimate tensile strength occurred in the specimens using a split channel pattern with an adder, which was 120.25 MPa, while the lowest tensile strength occurred in the specimens using a direct channel pattern which was 65,49 MPa. This also occurs for the highest impact value in the variation of the split pattern system with addition of 0.0081 J/mm2 and the lowest impact value is using the direct channel pattern which results in an impact value of 0.005508 J/mm2
KARAKTERISTIK KEBULATAN TERHADAP PARAMETER PROSES PEMBUBUTAN PADA MATERIAL ST 42 MENGGUNAKAN METODE TAGUCHI DAN ANOVA Hendri Van Hoten; Rijalul Rahman Hakim; Helmizar Helmizar; Nurbaiti Nurbaiti
ROTOR Vol 14 No 2 (2021)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.284 KB) | DOI: 10.19184/rotor.v14i2.27380

Abstract

This research is about the roundness characteristics of the turning process parameters on St 42 material using the Taguchi and ANOVA (Analysis of Variance) methods. A cylindrical product requires a good roundness value to ensure its quality. One of the factors that determine the quality of these products is the machining process parameters. In this study, optimization of the turning process parameters using the Taguchi and ANOVA methods was carried out on the roundness characteristics of the workpiece. The workpiece used is Steel St 42. The lathe used is the Krisbow Precision Gear Head Machine 410X1000MM. After data analysis using the Taguchi method, the parameters with the optimum roundness value of 7.385 µm were 510 rpm spindle rotation, 1mm depth of cut, and coolant opening valve. The results of the ANOVA analysis show the percent contribution of each parameter, respectively, as follows: spindle rotation 26.97%, depth of cut 24.82%, and coolant 38.63%.
IDENTIFIKASI SURFACE RUBBER COVER UNIT INSERT MACHINE BILLING STATEMENT UNTUK MEMINIMALISIR LAJU KEGAGALAN Amam Fachrur Rozie; Sumadi Sumadi
ROTOR Vol 14 No 2 (2021)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (411.032 KB) | DOI: 10.19184/rotor.v14i2.26976

Abstract

A rubber cover flyerroll on an insert machine that has been operating for 3600 hours and is damaged, so an analysis is needed to determine the cause of the damage and a process to overcome the damage and the same failure occurs in the future. This flyer roll functions as a billing statement folder before being inserted into an envelope with dimensions of 28 mm (OD) x 284 mm (L). To find out the cause of the damage, several tests were carried out, namely destructive testing and chemical composition testing. Physical tests carried out include hardness test, tensile strength test, modulus test, elongation break test, density test, and abrasion resistance test. resistance test) and in this study a chemical composition test was conducted. From the test results, it can be seen that the hardness value is still within the tolerance limit, which is 94 shore A with a tensile strength value of 31.7 N/mm2 and the results of the chemical composition are dominated by polyurethane rubber at 62.9% and polystar at 23%. So from the tests that have been carried out, it can be concluded that the cause of the damage that occurs to the rubber cover flyer roll is caused by improper maintenance methods, machine maintenance that is not carried out and standard operational procedures (SOPs) that are not carried out according to the recommended maintenance process
PENINGKATAN KEKUATAN TARIK SAMBUNGAN SINGLE V-GROOVE BAJA ST37 DENGAN VARIASI ARUS PENGELASAN SMAW Alief Muhammad; Dani Hari Tunggal Prasetiyo; Akbar Anugrah Ikhsani; Setyo Pambudi
ROTOR Vol 14 No 2 (2021)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (251.024 KB) | DOI: 10.19184/rotor.v14i2.29471

Abstract

Welding and casting processes have become an important focus in the development of industry 5.0. In improving welding efficiency, increasing the number of tests on many variables is the first step in optimizing production. Welding optimization aims to find the best solution and result in a production process, it takes a lot of welding experimental data to be able to compare it. The Shielded Metal Arc Welding (SMAW) is becoming very common in all industries. SMAW has several variables that can affect welding results, one of which is the electric current used. This study aims as an effort in the current industrial development is to present data on the effect of SMAW welding electric current on its tensile strength for optimization. In this study, the mechanical strength tested was tensile strength and current susceptibility used was 80 to 140 Ampere commonly used using ST-37 Steel. The highest maximum loading value occurred in the sample with a current of 80 A of 72.78 kN. However, the highest maximum stress, fracture, and yield occurred in the sample with a current of 140 A of 734.66; 594.28; 558.29 MPa.
PERANCANGAN BILAH INVERSE TAPER BERBAHAN STYROFOAM DENGAN AIRFOIL NACA 4412 Simon Petrus Sidabutar; Kardiman Kardiman; Rosmawan Arwinda Setyaningrum
ROTOR Vol 14 No 2 (2021)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (317.776 KB) | DOI: 10.19184/rotor.v14i2.26812

Abstract

In the manufacture of wind turbines, there are several parameters that are taken into account, namely the wind speed in the area to be installed. The wind speed in Indonesia ranges from 3m/s – 11m/s, so it is quite difficult to implement a macro-scale wind turbine and the facilities are still inadequate. So this design is a design to make a micro-scale wind turbine that adapts to the characteristics of wind speed in Indonesia. In this design, a blade with the Inverse Tapper type is made which is a blade type with an enlarged shape to the end to get a large sweep at the end of the blade and produce a lift force that is greater than the drag force on the blade so that it can rotate the blade. In the design of this blade, material changes are also made, generally the material used in the blade is made of wood, fiber, and aluminum. In this design, a material made of styrofoam is used, this is to make the mass of the blade lighter and make the blade able to rotate at the smallest wind speed. In this design, the maximum power obtained is 553 watts at 668 rounds of blade rotations . Keywords : Airfoil, Inverse Blade, Cl/Cd, Styrofoam.

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