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All Journal Jurnal Teknologi Rekayasa Mesin Metal Indonesia JURNAL KAJIAN TEKNIK MESIN Teknologika ELASTICITY: Journal of Applied Engineering Science
Choirul Anwar
Sekolah Tinggi Teknologi Wastukancana
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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Desain Sistem Pendingin Kemasan Baterai Litium Ion Kapasitas Pengisian Cepat dengan PCM (Phase Change Material) dan Pelat Pendingin Choirul Anwar; Agus Suprayitno
JURNAL KAJIAN TEKNIK MESIN Vol 6, No 1 (2021): Jurnal Kajian Teknik Mesin
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52447/jktm.v6i1.4325

Abstract

Battery performance is affected by the problem of overheating which can cause mechanical damage to the battery and electronic components of the BMS (Battery Management System). With the need for an increase in battery charging time with fast capacity, the internal heat generated by the battery also increases so that the battery pack needs to be equipped with a cooling system. Currently, the cooling system in the battery pack uses a lot of cooling plate, cooling pipe, PCM (Phase Change Material) and cooling fluid. Combining cooling system design based on advantages and disadvantages to produce the best performance was tried using the cooling plate and PCM. The method used is to change the initial design of the battery pack without cooling to a cooling system by making a design and verifying the design. The process of thermal analysis is carried out in the process of charging the battery and removing the battery. The result of the research is the distribution of heat transfer that occurs during the battery charging process and the battery discharge is uniform and the temperature value obtained is the 43,2 °C battery discharge process in the main cooling plate component and the maximum temperature in the charging process is 57,6°C. at BMS. Cooling using a cooling plate and PCM for a closed system is maximized. Keywords: baterai Litium-Ion, Heat Sink, PCM
Perancangan Mesin Auto Spray untuk Cleaning Candle Filter Amri Abdulah; Apang Djafar Shieddieque; Dede Ardi Rajab; Sukarman Sukarman; Choirul Anwar
Jurnal Metal Indonesia Vol 42, No 2 (2020): Metal Indonesia
Publisher : Balai Besar Logam dan Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32423/jmi.2020.v42.52-62

Abstract

Penelitian ini membahas perbaikan proses penyemprotan pada tahap pembersihan candle filter di PT XYZ, yaitu permasalahan proses penyemprotan manual  pada candle filter  yang tidak efisien. Berdasarkan permasalahan tersebut maka perlu dilakukan proses penyemprotan dengan mesin. Penelitian ini membahas tentang perancangan mesin penyemprot otomatis  candle filter untuk mengurangi waktu pengerjaan. Mesin ini dirancang untuk berbagai ukuran candle filter, dan mesin dapat membersihkan candle filter  dari luar dan dalam secara bersamaan. Hasil perancangan yaitu mesin auto spray memiliki  putaran untuk penggerak nosel yaitu 596,1 Rpm dan pemutar candle filter 480 Rpm. Kecepatan putaran dirancang dengan RPM yang dapat disesuaikan dan dikontrol oleh inverter pada panel. Mesin auto spray memiliki konstruksi yang tahan korosi dan kokoh dengan spesifikasi mesin sepanjang 3005 mm x lebar 515 mm x tinggi 1215 mm. Proses penyemprotan menghemat waktu yaitu mencapai 60% yang diperoleh dari perhitungan proses penyemprotan secara manual, dan menggunakan mesin otomatis masing-masing adalah 25 menit 10 menit. Dari segi kualitas, hasil penyemprotan menggunakan mesin juga lebih baik. Dari 40 sampel yang diuji dari setiap proses, nilai rata-rata partikel saat menggunakan mesin, dan secara manual masing-masing adalah 5,36 gram dan 23,6 gram.
ANALISIS PENGARUH RADIUS DIES TERHADAP SPRINGBACK LOGAM LEMBARAN STAINLESS-STEEL PADA PROSES BENDING HIDROLIK V-DIE Sukarman Sukarman; Choirul Anwar; Nana Rahdiana; Khoirudin Khoirudin; Anwar Ilmar Ramadhan
Jurnal Teknologi Vol 12, No 2 (2020): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.12.2.123-132

Abstract

Proses bending merupakan salah satu proses pembentukan material (metal forming) banyak digunakan di proses manufaktur. Penggunaan radius dies bending dan penyetingan sudut bending yang tidak tepat akan berdampak  pada terjadinya kegagalan material dan dimensi.  Penelitian ini menggunakan ekperimental dengan menggunakan material Stainless-Steel (SUS 304) dengan tebal 1.0 mm yang memenuhi standar ASTM A-240. Penelitian ini dilakukan dengan menggunakan parameter sudut bending 90o, yang divariasikan pada radius dies sebesar 1.0 mm dan 1.3 mm. Analisis pengaruh springback telah dilakukan dengan mengatur sudut bending secara hitungan teoritis dan membandingkanya dengan pengaturan sudut aktual. Proses selanjutnya dilakukan analisis dan evaluasi untuk mencapai sudut standar   . Proses bending yang menggunakan sudut bending 93o45” dan 92o30” berturut-turut menghasilkan nilai springback sebesar 0.98 dan 0.97. Sudut benda kerja yang dihasilkan  pada saat  penyetingan sudut  bending 92o30” dan 93o45” berturut-turut adalah 91o30” dan 90O.  Dari data ini didapatkan bahwa proses bending menggukan sudut 92o,30” mendapatkan hasil yang lebih presisi dibandingkan dengan sudut bending teoritis 93o45”.
ANALISIS KEGAGALAN PRODUK PRESERED CONCRETE GIRDER I AKIBAT DEFORMASI CETAKAN DENGAN MENGGUNAKAN METODE ELEMEN HINGGA Eko Teguh Fiji Santoso; Choirul Anwar; Ghani Heryana
Jurnal Teknologika Vol 10 No 2 (2020): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1267.688 KB) | DOI: 10.51132/teknologika.v10i2.79

Abstract

Presered concret I girder merupakan desain bentuk girder yang paling banyak digunakan pada bangunan struktur jembatan dan flyover di Indonesia, Untuk produksi PCI Girder memerlukan cetakan yang cukup kuat untuk menahan tekanan yang terjadi. Namun dalam kondisi aktual cetakan tidak mampu menahan tekanan beton dan getaran vibrator sehingga terjadi deformasi cetakan yang mengakibatkan dimensi produk berubah dari desain awal. Oleh karena itu untuk menganalisis masalah deformasi cetakan perlu dilakukan pengumpulan data aktual kemudian melakukan analisis yang terjadi pada cetakan.Salah satu metode yang dapat dipakai untuk menganalisis pergeseran cetakan yaitu dengan metode elemen hingga. Dari analisis metode elemen hingga yang dilakukan dengan menggunakan Solidworks, dari hasil analisis maka didapatkan tegangan maksimal yang terjadi 477200000 ????/????2 nilai tersebut melebihi yield strength matrial 206807000????/????2 sehingga cetakan mengalami lendutan 2,25mm serta pengaruh dari getaran vibrator dengan nilai lendutan sebesar 0,074 mm.Setelah analisis dilakukan maka tindakan rekomendasi dilakukan dengan cara menambah rangka dengan baja jenis UNP atau clamping untuk dudukan bracing dibagian tengah cetakan, kemudian dilakukan analisis statis sehingga nilai von mises dari cetakan berubah menjani nilai maksimal : 329800000 N/m^2 dan lendutan berkurang menjadi 0,952cm.
Pemilihan Desain Penutup Pintu Menggunakan Metode Pugh TB. U. Adi Subekhi; Fahad Zaqi Mukmin; Choirul Anwar
Jurnal Teknologika Vol 12 No 2 (2022): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v12iNo 2.227

Abstract

Abstract The door is the main access to enter a room, which can also affect the effectiveness and safety of users. This research contains 3 design concepts regarding door closings using the principle of a pure 4 rod mechanism. Of the 3 design concepts, the most superior concept was selected using the Pugh method. Several parameters used in the selection of the Pugh method are mass, ease of processing, kinematic mobility, and yield strength of the system for each concept. A superior concept is a concept that has a small mass and yield strength system but has a large safety factor. Based on the analysis and design concept conclusions, the yield strength of the connecting rod system is 204 MPa and the yield strength of the slider rail system is 27.6 MPa. And the yield strength that occurs does not exceed/exceed the yield strength of the material used. The yield strength of galvanized is 300 MPa and the yield strength of aluminum is 276 MPa. While the safety factor on the connecting rod = 300 / 204 = 1.4. and Safety factor on the slider rail = 276 / 27.6 = 10.
ANALISA DISTRIBUSI KEKERASAN KOMPONEN MOVABLE PULLEY DRIVEN (MPDN) PADA TRANSMISI KENDARAAN Irwan Suriaman; Muhammad Al Makki; Jatira Jatira; Choirul Anwar
Jurnal Rekayasa Mesin Vol. 14 No. 2 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i2.1221

Abstract

Transmission on the vehicle is very important component to ensure maximum power transfer from the engine to the wheels. The speed of four-wheeled vehicles is influenced by the transmission system used. Pulley is the component of continuous variable transmission (CVT) which is currently widely used in the automotive industry. The CVT transmission is type of automatic transmission with  gearshift process that does not use gears, but uses pulley. The pulley is made of stainless steel. For CVT transmission there are two pulleys, both of which are called driven pulleys. The CVT transmission shift operation is controlled electronically from the computer to drive the two pulleys. These two pulleys can move to the right or to the left, respectively, so that the width of the two pulleys can change to narrow or widen. The drive pulley moves away so the belt will move inward and the same time the driven pulley will narrow so the belt will move further out. The pulley diameter becomes the gear ratio in a CVT transmission. In the CVT transmission process there will be friction between the two surfaces of the pulley and the belt, therefore it is necessary to measure the hardness of the material from the pulley to ensure the vehicle's transmission capability. In this study, the hardness of the pulley material was measured using a Vickers machine according to the ASTM 6507 standard with a given load of 0.3 kg. The measurement results obtained an average value of hardness Vickers (HV) for the pulley material of 473. 
Perancangan Turbin Archimedes Kapasitas 700 Watt untuk Aliran Sungai Dangkal Zhilal Ihsan Ilahi; Reza Afriansyah; Angga Zuga Prasetiyo; Fathan Mukhlis; Choirul Anwar
ELASTICITY: Journal of Applied Engineering Science Vol. 2 No. 1 (2025): ELASTICITY: Journal of Applied Engineering Science (In-Press)
Publisher : Lembaga Intelektual Muda Maluku

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54373/elastic.v2i1.94

Abstract

Archimedes turbines are a renewable energy technology that utilizes the kinetic energy of water flows to generate electricity. This technology is suitable for use in locations with low water drop heights, where traditional turbine technology is less efficient. This research aims to design and calculate the main parameters of Archimedes turbines with high efficiency. The methods used include the collection of initial data such as discharge and water flow velocity, calculation analysis using gear ratios, and design simulations to validate the strength of the structure. Design parameters include turbine diameter of 0.276 meters, length of 1 meter, and tilt of 30°. The simulation results show that the turbine is able to operate at a speed of 113.88 rpm and produce 741.5 watts of electrical power with an efficiency of 85%. The main conclusion of the study is that Archimedes turbines have great potential as a renewable energy solution for areas with high water fall. Further implementation in the field is needed to validate these results and evaluate environmental impacts.  
Desain Dies Proses Piercing dan Shearing pada Pembuatan Clamping Irwan Suriaman; Risky Maulana; Choirul Anwar; Jatira; Yadi Heryadi; TB. U. Subekhi; Dede A Rajab
Jurnal Teknologika Vol 16 No 1 (2026): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v16i1.676

Abstract

A trolley fabrication company that implements a make-to-order system in the production process. Of the several types of trolley models, one of them is the mesh model trolley where one of the components uses a clamp plate. Where the clamp plate functions to bind one component to another so that the mesh trolley can function more effectively. It is made using a press machine with Punch and Dies. In making clamping, the process used is shearing and piercing. The selection of dies will be based on the practicality of the product manufacturing process, as well as the relatively cheaper cost of making dies. In the manufacturing process of this product, a single compound die will be used. The shearing and piercing processes are only one process, so it can save a lot of time and costs. For this die planning process, the work includes the amount of cutting force, the required machine capacity, clearance, punch dimensions, dies dimensions and supporting tools used. The material used to make clamping is SPCC SD with a thickness of 3 mm. The machine capacity used is 25 tons. The cutting operational force for the shearing process is 62361.6 N, for the piercing hole process is 20267.5 N. So by using a separately made punch contour design, it can make it easier during the maintenanceprocess and the production process can be carried out in bulk.
Perancangan Sistem Solar Panel Tracker Menyesuaikan Kondisi Pancaran Sinar Matahari Muhammad Syahrul Rizal; Rohman; Jatira; Choirul Anwar; Yadi Heryadi; Irwan Suriaman
Jurnal Teknologika Vol 16 No 1 (2026): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v16i1.683

Abstract

Solar energy is one of the most promising and inexhaustible sources of renewable energy. Solar panels, as the primary devices for converting solar energy into electrical energy, have been widely utilized. However, issues related to the efficiency of these panels remain. Panels installed in a fixed position can only optimally absorb sunlight at a specific time of day, whereas the sun’s position shifts dynamically from east to west throughout the day. This study discusses an effective and efficient solar tracker mechanism that enables the panel to follow the sun’s movement throughout the day. The results of the study indicate that the design of a single axis solar tracker mechanism (east to west) with a target rotation of 180° over 12 hours or 15° per hourincrements requires a DC motor with a speed of 1400 rpm, an internal gearbox with a ratio of 80:1, and an external gear with a ratio of 12:1, resulting in a total gear ratio of 960:1. Consequently, the final output speed of the motor is reduced to 1458 rpm, meaning the motor only needs to be active for approximately 10.26 seconds to rotate the panel by 15° per hour.
Co-Authors Agus Suprayitno Amri Abdulah Angga Zuga Prasetiyo Anwar Ilmar Ramadhan Dede A Rajab Dede Ardi Rajab Eko Teguh Fiji Santoso Fahad Zaqi Mukmin Fathan Mukhlis Ghani Heryana Irwan Suriaman Jatira Jatira Jatira Khoirudin Khoirudin Muhammad Al Makki Muhammad Syahrul Rizal Nana Rahdiana Reza Afriansyah Risky Maulana Rohman Shieddieque, Apang Djafar Sukarman Sukarman TB. U. Subekhi TB. Utami Adi Subekhi Yadi Heryadi Zhilal Ihsan Ilahi