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Jurnal Energi dan Teknologi Manufaktur (JETM)
Published by Politeknik Negeri Malang
ISSN : 26208741     EISSN : 26207362     DOI : 10.33795/ath
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Energi dan Teknologi Manufaktur adalah jurnal bidang Teknik Mesin yang diterbitkan oleh Jurusan Teknik Mesin, Politeknik Negeri Malang. Jurnal Energi dan Teknologi Manufaktur diterbitkan dua kali dalam setahun pada bulan Juni dan Desember. Kami menerima artikel hasil penelitian ilmiah di bidang Teknik Mesin khususnya: Energi Terbarukan, Pemeliharaan Mesin Konversi Energi, Inovasi Teknologi Manufaktur, Pemeliharaan Mesin Manufaktur dan Analisis Sistem Manufaktur.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 7 Documents
 1 
Search results for , issue "Vol 4 No 02 (2021)" : 7 Documents clear
Pemodelan Suspensi Kendaraan Dalam Tinjauan Multi Derajat Kebebasan Pipit Wahyu Nugroho; Mochamad Muzaki
Jurnal Energi dan Teknologi Manufaktur Vol 4 No 02 (2021)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v4i02.78

Abstract

The two most important parameters in vehicle vibration are the level of comfort and stability. To get the best value from that parameter, the vehicle suspension system is very important to reduce vibration due to road waves and keep the wheels attached to the road. This paper studied the effect of the type of suspension on the vibration of a one-wheeled vehicle in terms of comfort and stability. The type of suspension is related to the value of the spring stiffness and the damping. While the vehicle is modeled with one wheel in two degrees of freedom. The test is carried out by loading the vehicle including the mass of the vehicle and passengers for each type of suspension, namely soft, medium and hard. Vibration analysis was performed using Matlab Simulink to obtain the acceleration response and deflection response. The vibration response graph shows the comparison of the level of comfort and stability of the vehicle on the road profile modeled in step, impulse and sinusoidal functions. From the simulation results, it is found that the Soft and Medium Suspension can handle vibration very well, especially from the level of response speed for relatively flat roads. Meanwhile, the Hard type of suspension is very good at dampening vibrations for high bumpy roads.
Pengaruh Perlakuan Permukaan Pengikatan Terhadap Sifat Mekanik Komposit Serat Kaca Dengan Laminasi Almunium Muhammad Fakhruddin; Maskuri Maskuri; Elka Faizal; Bayu Pranoto; Hangga Wicaksono; Hilmi Iman Firmansyah
Jurnal Energi dan Teknologi Manufaktur Vol 4 No 02 (2021)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v4i02.79

Abstract

Fiber metal laminates or commonly known as fiber metal laminates (FML) are composite structures made by combining 2 layers of material as the outer layer with the core material. The outer layer of this composite is called the laminate. Generally, laminated composites are produced by joining techniques under solid-state conditions, such as diffusion bonding, extrusion, friction-stir welding, and roller welding. In this study, glass fiber composites with aluminum lamination were made using the vacuum assisted resin infusion (VARI) method, using epoxy resin. The surface treatment of the aluminum laminate was carried out with the direction of roughing at certain angles and variations of the surface roughening of the laminate to test the mechanical bonding between the composite and the laminate. Mechanical bonding testing using three-point bending test method (three-point bending) and buckling test. The expected result is that by surface treatment on aluminum laminate, the best mechanical bonding to composites with glass fiber is obtained. The TKT to be achieved from this research is TKT level 3, which is an analytical study that supports the prediction of the performance of the effect of the bonding surface treatment on the mechanical properties of glass fiber composites with aluminum lamination.
JIG AND FIXTURE PENGELASAN SUDUT SIKU UKURAN LEBAR PROFIL (3 - 60 mm) DI JURUSAN TEKNIK MESIN POLITEKNIK NEGERI MALANG Marthania Putri Indrayati; Rafik Djoenaidi; Andri Setiawan
Jurnal Energi dan Teknologi Manufaktur Vol 4 No 02 (2021)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v4i02.81

Abstract

The resulting angle deviation is the result of improper welding methods, in addition, there is also a distortion factor in the workpiece during the SMAW welding process at the workshop in the Department of Mechanical Engineering, State Polytechnic of Malang.The purpose of making this tool is to facilitate and provide time efficiency in the welding process, it is necessary to manufacture jig and fixture tools in the angle welding process. The way the angle welding jig and fixture works is by gripping the workpiece to be welded in a plane that forms an angle so that the object to be welded will follow the angled plane.
DESAIN DAN PEMBUATAN JIG AND FIXTURE PEMBENTUK RADIUS LUAR (r = 5 – 20mm) PADA MESIN BUBUT MAXIMAT V-13 DI JURUSAN TEKNIK MESIN POLITEKNIK NEGERI MALANG Andri Setiawan Setiawan; Rafik Djoenaidi; Martha Putri Indrayanti
Jurnal Energi dan Teknologi Manufaktur Vol 4 No 02 (2021)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v4i02.84

Abstract

On a conventional lathe, the process of forming the outer radius on the workpiece (cylinder) can be directly carried out by installing a jig and fixture to facilitate the small-scale machining process that is applied to the tool holder (carriage) instead of the tool position. it is chisel and the holder is removed. Field surveys are needed to support the data collection process, such as the dimensions of the tool post and the distance of the feeding axis of the Maximat V-13 lathe. From this data, it will be correlated in the form of a jig and fixture design with material selection as a comparison. By involving jigs and fixtures in the practicum process, it can provide additional insight regarding work systems and time efficiency in the production process. So that it can help practitioners / students to recognize some of the supporting parts / components in the overall arrangement of jigs and fixtures.
PENAMBAHAN SISTEM KOMPUTERISASI PADA UNIVERSAL TESTING MACHINE DI JURUSAN TEKNIK MESIN POLITEKNIK NEGERI MALANG Rafik Djoenaidi; Andri Setiawan; Martha Putri Indrayanti
Jurnal Energi dan Teknologi Manufaktur Vol 4 No 02 (2021)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v4i02.87

Abstract

Rafik Djoenaidi, Andri Setiawan, Marthania Putri Indrayati ,. 2021. "Addition of Computerized Systems to Universal Testing Machines in the Department of Mechanical Engineering, State Polytechnic of Malang". Tensile testing equipment is an educational laboratory facility that is very important in supporting and supporting the teaching and learning process in the laboratory, especially the Tensile testing machine in the Polynema Mechanical Engineering department still uses manual reading of test results, along with the development of technology, currently the Tensile testing machine will equipped with digitalization tools and integrated into the computer with data acquisition. Tensile test equipment is an educational laboratory facility that is very important in supporting and supporting the teaching and learning process in the laboratory, especially the Tensile testing machine in the Polynema Mechanical Engineering department still uses reading test results manually, along with the development of technology, the current Tensile test machine will equipped with a digitizing device and integrated into a computer with data acquisition. The output of this tensile test is in the form of a tensile force table (F), elongation (ΔL), stress, strain and stress strain graph. The method for recording tensile force data (F) is done by connecting directly using a sonic scale type sp-320 and integrating it into a computer with data acquisition so that it can display a graph.. Keywords: Tensile test equipment, data acquisition, Sonic Scale
PENGARUH PENGATURAN KUAT ARUS DAN VOLTASE TERHADAP KEKUATAN TARIK PADA PENGELASAN BIMETAL PLAT BAJA KARBON RENDAH DAN STAINLESS STEEL 304 DENGAN LAS GMAW Sarjiyana .; Subagiyo Subagiyo; Lisa Agustriyana
Jurnal Energi dan Teknologi Manufaktur Vol 4 No 02 (2021)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v4i02.103

Abstract

A manufactured product in the form of a mixture of dissimilar materials (bimetal) must be considered, including: selecting the right metal, selecting the appropriate filler, setting the current and voltage, etc. For this reason, research related to bimetallic welding using Gas Metal Arc Welding (GMAW) was conducted. The aims were to determine the effect of current on the tensile strength of bimetallic welding of low carbon steel and stainless steel 304 using GMAW welding, to determine the effect of voltage on the tensile strength of bimetallic welding, and to determine the effect of the interaction of current and voltage on the tensile strength of bimetallic welding using welding. GMAW. The research method used is experimental where the results of bimetallic welding are tested by the destructive test method. The results showed that current, voltage, and the strong interaction between current and voltage affect the tensile strength of bimetallic welding of low carbon steel and stainless steel 304 using GMAW welding. The use of amperes between 120A-160A and a voltage of 19V-22V gives a small difference and a tensile strength of 300 MPa-330 MPa.
KAJI EKSPERIMEN MASSA REFERIGERANT TERHADAP OPTIMALISASI FUNGSI AC PADA KENDARAAN INOVA DIESEL 2008 Nike Nur Farida; Wachid Yahya; Khaeratul Mukarramah
Jurnal Energi dan Teknologi Manufaktur Vol 4 No 02 (2021)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v4i02.104

Abstract

One of the functions of the vehicle air conditioner is to provide thermal comfort in the cabin space. Thermal Comfort can provide benefits such as reducing driver fatigue and increasing driving efficiency and safety, so it is important that the temperature of the vehicle is in accordance with human thermal comfort (22.8-26oC). The purpose of this study was to see how much volume and pressure the car air conditioner had in order to get optimal thermal comfort by varying the volume of the refrigerant in the air conditioner and recording the pressure, temperature in the condenser, evaporator and cabin space. The test equipment in this study was a 2008 Toyota Innova Diesel with refrigerant R 134a with a volume variation of 600 grams, 700 grams, 800 grams, 900 grams, 1000 grams and 1,100 grams. The results showed that the more refrigerant volume will make the low pressure and high pressure in the AC system rise. Optimal low pressure (1.5 bar) and optimal high pressure (15.1 bar) were obtained at a refrigerant volume of 700 grams. The relationship between the refrigerant mass and the temperature in the evaporator line has a tendency if the volume of refrigerant plus the temperature in the evaporator line and the cabin will decrease to a certain point the temperature will tend to rise. The pattern which includes the addition of refrigerant mass will reach the optimum cabin temperature (achieve thermal comfort), and then decrease (the temperature will increase). The lowest temperature achieved in the cabin (24.6oC) was at a refrigerant volume of 700 ml.

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