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All Journal V-MAC (Virtual of Mechanical Engineering Article) Jurnal Penelitian Sekolah Tinggi Transportasi Darat
Henry Widya Prasetya
Politeknik Perkeretaapian Indonesia Madiun
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Analisis Kekuatan Alat Pengaman Valblock Pada Coupler Kereta ilham satrio utomo; Dadang Sanjaya Atmaja; Henry Widya Prasetya; Firmansyah Fariz Prasaja
Virtual of Mechanical Engineering Article Vol 5 No 2 (2020): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/v-mac.v5i2.1060

Abstract

The purpose of this study was to analyze the stress, displacement, and factor of safety that occurred in the valblock safety device. With the maximum load that occurs at the knuckle is 7473 N. Testing is done using Solidworks simulation software. The material used is AISI 1045 with allowable stress of 450 MPa. The results of the analysis that came out of the simulation were the maximum stress values, displacement, and the factor of safety. The maximum stress results in static conditions that the tool is only able to withstand loads up to 7000 N with a value of 3,540 , and does not exceed the maximum allowable stress limit of the tool, which is 5,300 . The result of the loading is a change in the shape of the stem, namely displacement or deflection. The results obtained from the deflection of 1.3 mm. For the results of the factor of safety, the tool is worth 1.5 at a load of 7000 N so that the valblock safety device is safe to use up to 7000 N loading. Key Words: Coupler, Valblock, Tegangan, Solidwork 2017
Pengaruh Susunan Laminasi Serat Gelas Terhadap Kekuatan Tarik Komposit Untuk Bodi Lori Inspeksi Henry Widya Prasetya; Dadang Sanjaya Atmaja; Ilham Satrio Utomo
Virtual of Mechanical Engineering Article Vol 5 No 2 (2020): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/v-mac.v5i2.1061

Abstract

Composite material is a type of new, engineered material consisting of two or more materials where the properties of each material differ from one another both in chemical and physical properties and remain separate in the final material. Composite materials have many advantages, one of which is lighter weight and corrosion resistance. In this study, composites made from glass fiber were carried out with variations in the arrangement of laminates, in order to select the material which was then applied to the manufacture of the inspection lorry body. Composites were made using the hand lay-up method. Tensile test specimens made according to ASTM D-638. The results of the tensile test show that the highest tensile strength of glass fiber composite material for the inspection lorry body is 5.45 MPa and the lowest tensile strength is 4.62 MPa. Keyword: composite, glass fiber, tensile test, inspection lorry
Pengaruh Variasi Bentuk Permukaan Forging Dan Suhu Preheat Terhadap Kekuatan Tarik Friction Welding Dimas Adi Perwira; Henry Widya Prasetya
Virtual of Mechanical Engineering Article Vol 5 No 2 (2020): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/v-mac.v5i2.1068

Abstract

Most of the railway facilities use steel as the constituent material. The method of joining (joining methods) of steel materials, especially in the railroad industry, the most widely used is the welding technique (welding) so that knowledge of the welding process is very important for welding enginers and metallurgists as well as for designers, fabricators, users of welding results. The purpose of this study was to determine the tensile strength of the joint resulting from the friction welding method with variations in the shape of the forging surface and preheat temperature. The shape of the forging surface is 8 mm, 10 mm and 12 mm. Variations in preheat temperature of 200 C, 400 C and 600 C. The results showed the highest tensile strength of the friction weld joint with an average tensile stress value of 407, 48 MPa on the forging surface shape of 12 mm and a preheat temperature of 600 C. And the tensile strength of the joint The lowest friction welding with an average tensile stress value of 120 MPa on the forging surface shape of 8 mm and a preheat temperature of 200 C. Keyword: friction welding, forgings, preheat temperature
Analisis Gangguan Hasil Uji Pop Test Sebagai Parameter Kehandalan Mesin Diesel Lokomotif CC 206 Henry Widya Prasetya; Dadang Sanjaya Atmaja; Rochmat Septian Hermawan
Virtual of Mechanical Engineering Article Vol 6 No 1 (2021): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/v-mac.v6i1.1282

Abstract

Locomotive CC 206 is the newest locomotive owned by PT Kereta Api Indonesia. Inside the CC 206 locomotive is equipped with a sophisticated smart display that can monitor all size parameters and damage to the locomotive itself. One of the capabilities of the CC 206 locomotive is the pop test. Pop test is the ability of the CC 206 locomotive to test the performance of each cylinder of the diesel engine. Based on the pop test results, there are various disturbances that often occur during maintenance of the CC 206 locomotive diesel engine.The purpose of this analysis is to analyze the pop test results as a reliability parameter on the CC 206 locomotive diesel engine, to analyze the factors causing the disturbance in the pop test results and analyze the effect of the failure of the pop test results on performance. Based on the results of the pop test, it was found that one of the cylinders was abnormal because the injector was under pressure, the injector spring was damaged and there was a clogged nozzle. Keyword: CC 206 Locomotive, Pop test, Maintenance.
Pengaruh Variasi Diameter Filler Dan Kuat Arus Terhadap Kekuatan Tarik Hasil Pengelasan SMAW Material Stainless Steel 304 Dimas Adi Perwira; Henry Widya Prasetya; Muh. Adib Kurniawan
Virtual of Mechanical Engineering Article Vol 6 No 2 (2021): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/v-mac.v6i2.1519

Abstract

One of the railway facilities uses stainless steel as the main construction material. The method of joining stainless steel materials, especially the most widely used is the SMAW welding technique. The purpose of this study was to determine the tensile strength of SMAW welding joints on stainless steel 304 material with variations in diameter of rod filler as filler material an d variations in current from DC inverter electric welding machine. The diameter of rod filler as filler material is 1 mm, 2 mm and 3 mm. The variation of the current of the DC inverter of the electric welding machine is 70 A, 100 A and 120 A. The results show the highest tensile strength of the 304 stainless steel welded connection with an average tensile stress of 34.48 MPa on the current electric welding inverter. 120 A is used and the diameter of the rod filler is 2 mm. And the tensile strength of the welding connection of the 304 stainless steel material is the lowest with an average tensile stress of 17.01 MPa at the electric welding inverter current used is 70 A and the diameter of the rod filler is 3 mm.Keyword: SMAW welding, filler, current and stainless steel
Kekasaran Permukaan Proses Pembubutan Dry Dan Wet Process Baja ST 90 Dengan Insert Carbide Dimas Adi Perwira; Henry Widya Prasetya; Affan Nur Roja Jendra Prakoso
Virtual of Mechanical Engineering Article Vol 7 No 2 (2022): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

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Abstract

Abstract Railway components especially for parts of that often occur friction and resist when there is a pulling or pushing must have a low roughness to reduce the occurrence wear caused by frictioning and as an indicator good or bad quality of a product. The purpose of this study is to know the effect of roughness level of cutting parameter variation, wet process manufacturing method variation, dry process and nose radius variations of chisel lathe 0.4, 0.8 in the ST 90 The method used in this study is experimental. The independent variables in this study were variations in cutting parameters, nose radius of the tool, and working methods. In cutting parameters, spindle rotational speed (540 Rpm, 800 Rpm, 1500 Rpm), feed speed (0.226 mm/revolution), depth of cut (2 mm) and for nose radius using 0.4 mm and 0.8 mm, there are also variations in wet working methods. process and dry process. After testing is carried out, it shows that on the ST 90 with the wet process working method and nose radius 0.8 turning variation with spindle rotation speed of 1500 Rpm, depth of cut 2 mm, feed speed 0.226 mm/rev has a roughness value of 2.625 µm. Meanwhile, for the highest level of roughness, using the dry process method and chisel nose radius 0.4 with a turning speed of 540 Rpm, a cutting depth of 2 mm, a feed speed of 0.226 mm/rev having a roughness value of 9.223 µm. Keyword: Insert w-series, Wet process, Dry process, Surface roughness.
Pengembangan Alat Bantu Pemasang Dan Pelepas Penambat E-Clip Berbasis Dongkrak Elektrik Dadang Sanjaya Atmaja; Henry Widya Prasetya; Yusuf Adhisuryo
Virtual of Mechanical Engineering Article Vol 7 No 2 (2022): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

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Abstract

Abstract The fastener is one of the most important components in the railway infrastructure that must be inspected and maintained. Installing and removing fasteners nowadays is still using manual tools like hammers and panpullers which take a long time of 12 seconds and can damage the bearings due to the rebound of the tool. And the current tool is a hydraulic pump-based e-clip fastener installation and removal tool that takes 22 seconds to remove the fastener. Therefore, a device is needed to minimize the damage on the bearing so that its use is more effective and its utility is easy because it uses a control switch that is connected to the battery and then connected to an electric jack. This tool is targeted to be able to release the fastening in a period of under 10 seconds.The process of making an electric jack-based e-clip fastener assisting tool can be carried out in several stages, each of which is the design process, the upper frame manufacturing process, the lower frame manufacturing process, the tool pusher frame manufacturing process, the tool balancer frame manufacturing process, and the completion process. The finishing process of the tool manufacturing.The function testing of the electric jack-based e-clip fastener installation and removal assisting tool at Indonesian Railways Company, Rail road unit, Madiun for road and bridge maintenance. Function testing is done twice with two different operators. The results of the tool function test, the tool can perform the process of releasing one fastener for 5 seconds and can speed up the fastening maintenance process at Indonesian Railways Company, Rail road unit, Madiun. Keyword: E-clip Mounting, Rail Maintenance, Electric.
MATERIAL KOMPOSIT LAMINASI SERAT KARBON-NYLON DENGAN ADDITIVE ALUMINUM POWDER UNTUK BODY LORI Henry Widya Prasetya; Dadang Sanjaya Atmaja; Dimas Adi Perwira
Jurnal Penelitian Sekolah Tinggi Transportasi Darat Vol 13 No 2 (2022): December 2022
Publisher : Politeknik Transportasi Darat Indonesia - STTD Bekasi

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Abstract

Dalam proses perawatan prasarana perkeretaapian, dibutuhkan alat transportasi yang mampu mempercepat proses perawatan, efisiensi waktu, dan proses yang mudah dalam pengoperasian. Lori inspeksi merupakan alat transportasi yang sesuai untuk proses perawatan prasarana perkeretaapian. Lori inspeksi adalah kendaraan angkut dengan atau tanpa penggerak sendiri yang dapat diangkat dari rel di jalan bebas oleh tenaga yang ada pada kendaraan tersebut dalam waktu tidak lebih dari 2 menit. Lori inspeksi elektrik PPI Madiun masih memiliki beban total diatas 100 kg. Beban yang berat akan mengurangi nilai efektifitas penggunaan lori dan membahayakan operator, sehingga dibutuhkan beberapa inovasi untuk mengatasi masalah tersebut. Pertama dengan material pembentuk bodi lori, dibutuhkan material yang kuat dan ringan. Komposit adalah material alternatif yang dikembangkan sebagai pengganti material tradisional sejak dua puluh tahun terakhir. Komposit untuk bodi lori ini menggunakan epoxy resin sebagai matriks pengikat, serat karbon-serat nilon dan aluminium powder sebagai filler yang disusun dengan tingkat variasi laminasi. Pembuatan komposit dengan metode hand lay-up. Hasil penelitian menunjukkan bahwa susunan laminasi antar serat didalam penyusun penguat material komposit dengan metode hand lay up akan mempengaruhi kekuatan tarik. Kekuatan tarik tertinggi sebesar 17.82 MPa, pada spesimen 1A yang susunan seratnya dengan laminasi CNCNCN serat karbon, serat nilon, serat karbon, serat nilon, serat karbon, dan serat nilon. Kekuatan tarik terendah sebesar 13 MPa, pada spesimen A3 yang susunan seratnya dengan laminasi NNCCNN serat nilon, serat nilon, serat karbon, serat karbon, serat nilon, dan serat nilon.
Pembuatan Alat Bantu Kerja Pneumatik Pelepas Rubber Journal Spring Pada Bogie K5 Henry Widya Prasetya; Akbar Zulkarnain; Diki Wahyu Arobi
Virtual of Mechanical Engineering Article Vol 8 No 2 (2023): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/v-mac.v8i2.3020

Abstract

One of the facility maintenance performed on the bogie is removing the rubber journal spring. The removal of the rubber journal spring is still done manually, namely slamming it to the floor using a long bolt of about 10 cm which is inserted into the hole in the rubber journal cap to push the rubber so that it can be released from the hat within 8-10 minutes. This research was conducted to innovate tools with the aim of facilitating the maintenance process, shorter time and guaranteed safety in removing the rubber journal spring. The manufacturer of this release tool uses a pneumatic system with the components used in the form of a cylinder with a diameter of 100 mm × 200 mm in length, a 4/2 pust button valve, an air filter, a manometer, and an 8 mm air hose. From the test results, the rubber journal spring removal tool on bogie K5 using a pneumatic system requires 1.2 minutes with a pressure of 5 bar to release 1 rubber journal spring. This tool has dimensions weighing 40 kg, length 50 cm, width 30 cm, height 90 cm. Keyword: rubber journal spring, bogie, pneumatic
Co-Authors Affan Nur Roja Jendra Prakoso Akbar Zulkarnain Dadang Sanjaya Atmaja Damar Isti Pratiwi Diki Wahyu Arobi Dimas Adi Perwira Firmansyah Fariz Prasaja Ilham Satrio Utomo Muh. Adib Kurniawan Rochmat Septian Hermawan Yusuf Adhisuryo