Article Per Year (5 Year)
p-Index From 2021 - 2026
3.681
P-Index
This Author published in this journals
All Journal Jurnal TIMES Jurnal Inotera JURNAL PENDIDIKAN TAMBUSAI Jurnal Teknik Mesin Cakram Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Sprocket : Journal of Mechanical Engineering CHEDS: Journal of Chemistry, Education, and Science Jurnal Ilmiah Teknik Mesin, Elektro dan Komputer (JURITEK) Satera: Jurnal Sains dan Teknik Terapan JURNAL VOKASI TEKNIK (JUVOTEK) ATDS Saintech Journal of Engineering
Darmadi, Herry
Unknown Affiliation
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

Published : 25 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 25 Documents
Search

 1   2   3 
Keausan Yang Terjadi Pada Kampas Ganda Akibat Adanya Gesekan Dengan Clutch Cover (Matahari Kopling) Pada Forklift Di PT. ABC Darmadi, Herry; RAHMADI, DWI; Sidabutar, Naqasya Asyrori
SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 7 No 1 (2025): Edisi Agustus 2025
Publisher : Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sprocket.v7i1.1854

Abstract

Forklift is one of the means of transportation used in PT ABC. PT ABC is the first company to produce fish oil and flour using whole fish as raw material. Wear on engine components is a problem that is often faced in industry, especially in heavy equipment such as forklifts. One component that experiences significant wear is the double clutch, which functions as a connection between the engine and transmission in the clutch system. One of the main causes of wear on the double clutch is friction that occurs with the clutch cover (clutch sun). This study aims to determine the amount of wear volume that occurs on the double clutch and to determine the amount of wear rate that occurs on the double clutch. The method used in this study is data analysis. From the results of the study, it can be concluded that the Wear Volume that occurs on the double clutch is 7.1053 x 10-4 mm3 and the Wear Rate that occurs on the double clutch is 2.13624343 x 10-18 g / sec.mm2.
Besarnya Penyusutan Yang Terjadi Pada Peleburan Logam Non-Fero Dengan Menggunakan Bahan Baku 2.5 Ton Logam Untuk Pembuatan Komponen Boiler Pada Tanur Kupola Di PT. X Darmadi, Herry; Dewatmoko, Muhammad Andika; Kurnia, Dian; Bintang, Nurul Shadrina
SPROCKET JOURNAL OF MECHANICAL ENGINEERING Vol 7 No 1 (2025): Edisi Agustus 2025
Publisher : Program Studi Teknik Mesin, Universitas HKBP Nommensen, Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36655/sprocket.v7i1.1932

Abstract

The casting industry is a kind of mining industry, where all industry manufacturing would never exist without the casting of the casting industry, much more difficult for the economy of a country without its own industrial role. A brushwork furnace that is one of the most popular types of metal smelting kitchens. The large shrink that occurs at smelting metals for making boiler components using 2.5 tons of raw materials is 15.08 percent or weighing 2,123 kg. the foundry in PT X using cocash-fuel (coal with high carbon levels). The process of smelting metals included sand prints that served the desired components, supplying raw materials and fuel to suit needs, smelting the kiln in my furnace with the help of blowers, pouring the molten metal into the ground, and cooling the molten metal.
Pengaruh Variasi Sudut Kemiringan terhadap Beban Maksimum Screw Conveyor pada Unit Sterilizer Vertikal di PT X Darmadi, Herry; Hasibuan, Wendi; Muttaqin, Maraghi; Lumbantoruan, Sorta
Jurnal Pendidikan Tambusai Vol. 8 No. 1 (2024): April 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v8i1.14186

Abstract

Screw conveyor merupakan salah satu pemindahan bahan yang digunakan didalam industri yang bertujuan untuk mengangkut material. Pemilihan penggunaan screw conveyor untuk mengangkut material tersebut dikarenakan lebih efektif dalam memindahkan material, lebih ramah terhadap lingkungan serta memilki struktur yang sederhana dan sangat efisien. Pengaruh sudut kemiringan screw conveyor dengan variasi 10°, 15°, 20° terhadap beban maksimum. Objek observasi yang penulis tuangkan dalam penelitian ini adalah pengaruh sudut kemiringan screw conveyor terhadap beban maksimum pada sudut screw conveyor. Tujuan penelitian ini untuk mengetahui kemiringan screw conveyor dengan variasi 10°, 15°, 20° terhadap beban maksimum, dan mengetahui besarnya beban maksimum akibat pengaruh sudut kemiringan. Manfaatnya, memahami bagaimana pengaruh sudut kemiringan screw conveyor dengan 10°, 15°, 20°. Berdasarkan hasil analisis dan perhitungan besarnya kapasitas screw conveyor dan beban maksimum di PT. X diperoleh besar kapasitas screw conveyor dengan variasi 10° menghasilkan kapasitas 15,1 ton/jam pada variasi 15° menghasilkan kapasitas 13,2 ton/jam dan variasi 20° menghasilkan kapasitas 12,2 ton/jam.
Amount of Frictional Force of Steel Rope Against The Bollard Due To The Loading In The Process of Towing Lorry at PT. XYZ Darmadi, Herry; Irwansyah, Irwansyah; Kurnia, Dian; Hidayat, Rendy Ardian
Jurnal Sains dan Teknik Terapan Vol. 2 No. 1 (2024): Jurnal Sains dan Teknik Terapan
Publisher : Unit Penelitian dan Pengabdian Kepada Masyarakat, AK-Manufaktur Bantaeng

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Bollard is a piece of equipment found at the fruit receiving station which has the working principle of turning the steel wire rope and holding it in the process of pulling the lorry to be put into the sterilizer, to move the lorry to each door, the loading ramp is pulled by a capstand using a steel wire rope attached to it. to the bollard as a support and deflector so that the lorry can move forward and backward. The event that occurs as a result of pulling a lorry using a sling is an event where friction forces occur, and the friction that occurs on the bollard is caused by the presence of two objects in contact with a normal load. In this study, the value of the friction force that occurs on the steel wire rope against the bollard is calculated. From the research results, it was concluded that the amount of frictional force that occurs on the steel wire rope against the bollard when under load is influenced by the capstand speed which is quite low due to the load condition of 173,850 kg m/s². Meanwhile, the magnitude of the frictional force that occurs in the steel wire rope against the bollard under no-load conditions is influenced by the faster pulling speed, so the friction force value is 116,850 kg m/s²
Analisa Ketebalan Dinding Shell (Splitting) Dengan Metode Pengukuran Temperatur Tinggi Menggunakan Alat Ultrasonic Thickness Pada Fatty Acid Plant Di PT XYZ Darmadi, Herry; Tarigan, Agrifa Bremanata; Purba, Ulfani Ikhwana; Lumbantoruan, Sorta; Bintang, Nurul Shadrina; Faulianur, Rizki; Kurnia, Dian
Jurnal Teknik Mesin Cakram Vol. 8 No. 2 (2025): Jurnal Teknik Mesin Cakram
Publisher : Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Fat splitting atau hidrolisis adalah istilah di mana lemak atau minyak direaksikan dengan air untuk membentuk gliserol dan asam lemak. Tujuan proses di section Splitting Column bertujuan untuk memisahkan asam lemak dan gliserin. Senyawa trigliserida yang terdapat dalam minyak atau lemak dihidrolisis dengan air menghasilkan asam lemak dan gliserin. Tujuan penelitian ini adalah untuk menghitung nilai tebal dinding shell splitting dari hasil pengukuran ultrasonik akibat adanya perbedaan temperatur antara blok kalibrasi dengan temperatur dinding shell. Pengukuran dilakukan dengan metode NDT (Non-Destructive Test), salah satu pengujian yang dapat dilakukan pada suatu material, komponen, atau struktur untuk mengukur beberapa karakteristik tanpa merusak komponen atau material benda uji tersebut. Salah satu jenis NDT yang digunakan adalah ultrasonic thickness test. Uji ultrasonik termasuk salah satu uji tanpa rusak, terutama untuk mendeteksi cacat internal dan ketebalan dinding. Dari data hasil pengukuran didapat kesimpulan bahwa setelah dilakukan perhitungan, nilai tebal tertinggi adalah 61,89 mm pada shell 18000 di titik 270°, dan nilai tebal terendah yaitu 60,05 mm pada shell 24000 di titik 180° pada unit splitting. Abstract: Fat splitting or hydrolysis is a term where fat or oil is reacted with water to form glycerol and fatty acids. The purpose of the process in the Splitting Column section is to separate fatty acids and glycerin. Triglyceride compounds contained in oil or fat are hydrolyzed with water to produce fatty acids and glycerin. The purpose of this study is to calculate the shell splitting wall thickness value from the results of ultrasonic measurements due to the temperature difference between the calibration block and the shell wall temperature. Measurements are carried out using the NDT method. Non-Destructive Test is one of the tests that can be carried out on a material, component, or structure to measure several characteristics without damaging the component or material of the test object. One type of NDT used is the ultrasonic thickness test. Ultrasonic testing is one of the non-destructive tests, especially for detecting internal defects and wall thickness. From the measurement data, it can be concluded that after calculating the thickness value, the highest thickness value was 61.89 mm on the 18000 shell at the 270° point, and the lowest thickness value was 60.05 mm on the 24000 shell at the 180° point on the splitting unit.
Co-Authors Asyrori Sidabutar, Naqasya Barus, Adil Barus, Romi Antoni Bintang, Nurul Shadrina Br Tarigan, Nurlianna Bukhari Bukhari Dewatmoko, Muhammad Andika Donda, Donda Fadli Situmorang, Gio Fatih Abdillah, Muhammad Faulianur, Rizki Ginting, Maulidna Gultom, Golfrid Halawa, Darmo Hasibuan, Wendi Hidayat, Rendy Ardian Husainy, Husainy IRWANSYAH Irwansyah Irwansyah Jajuliansyah, Jajuliansyah K S Harefa, Paul Karo karo, Justaman Arifin Karti, Karti Kurnia, Dian Lumbantoruan, Sorta Malau, Frans Aditiya Malau, Valentino Carlos Maulidna, Maulidna Muhammad Iqbal Harapan Muslim Siregar Murhaban Murhaban Mustakim Mustakim Muttaqin, Maraghi Nelza, Novia Nurya Savitri, Agustin Paranita, Darni Pardede, Erwin Prasetya, Agil Bagus Purba, Ulfani Ikhwana Rachmiadji, Irwan RAHMADI, DWI Rahmansyah, Abdul Azis Ratlalan, Roberth Marshall Sastrawan Manik, Toba Savitri, Agustin Nurya Shadrina Bintang, Nurul Sidabutar, Naqasya Asyrori Simalango, Jeffri Simanjuntak, Agus Wiranto Simbolon, Bonar Wahyudi Simbolon, Tommy Frans Sitompul, Roganda Suaduon Harahap, Ahmad Sudirman, Zainal Syabil, Irfan Tambunan, Khairul Azhari Tarigan, Agrifa Bremanata Tarigan, Nurlianna Wahyu Saputra Wawuru, James Van Alex Yudhi Bastanta