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All Journal Rekayasa Mesin Jurnal Rekayasa Mesin JMM (Jurnal Masyarakat Mandiri) Jurnal Elemen Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Infotekmesin Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) Journal of Applied Engineering and Technological Science (JAETS) Indonesian Journal of Electrical Engineering and Computer Science JPKMI (Jurnal Pengabdian Kepada Masyarakat Indonesia) Community Development Journal: Jurnal Pengabdian Masyarakat JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Jurnal Mesin Nusantara Prima Abdika: Jurnal Pengabdian Masyarakat Panrannuangku Jurnal Pengabdian Masyarakat Jurnal Pengabdian Multidisiplin Jurnal Polimesin
Zakki Fuadi Emzain
Politeknik Negeri Malang
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Analisis elemen hingga untuk siklus berjalan pada model prostetik lentur pergelangan kaki Zakki Fuadi Emzain; Utsman Syah Amrullah; AM. Mufarrih
Jurnal POLIMESIN Vol 18, No 2 (2020): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v18i2.1922

Abstract

The model of compliant prosthetic ankle-foot is proposed as an alternative prosthetic aid for people with disabilities to do activities. The model is designed and analyzed to determine its strength and feasibility before being fabricated. The two main stages in this research are model design and model analysis. The shape of the model was designed with several elastic cavities and arches using the concept of a compliant mechanism. Finite element analysis (FEA) was performed on the prosthetic model when the stance phase on the mechanism of the human gait cycle. Because the prosthetic foot area is in contact with the ground on this cycle phase. Three main positions in 0-64% of the gait cycle are heel strike, midstance, and toe-off positions used as boundary conditions. The amount of load given adjusts the bodyweight percentage of the gait cycle with a reference of 80 kg. The direction of loading was by following the angle of the foot when dorsiflexion to plantarflexion during the stance phase. The biggest deformation results occurred in the toe-off position with two peak cycles of 4.69 mm and 4.45 mm at 17% and 51% of the gait cycle. While the smallest deformation occurred in the midstance position with an average of 0.08 mm. Because it used fixed support with two pedestals on the soles of the prosthetic. Maximum stress occurred in the toe-off position of 16.45 MPa at 17% of the gait cycle. With a safety factor of 1.63, the value is still safe because it is below the yield strength value of ABS material. While the largest strain of energy was located in the lower area in the middle of the arch between the toe and sole foot in the toe-off position of 3.55 mJ.
Design optimization of sleeve finger splint model using Finite Element Analysis Zakki Fuadi Emzain; Utsman Syah Amrullah; Am. Mufarrih; Nanang Qosim; Yusuf Dewantoro Herlambang
Jurnal POLIMESIN Vol 19, No 2 (2021): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v19i2.2272

Abstract

One of the rehabilitation alternatives for fingers injuries is to use a finger splint. Some existing finger splint models still use excessive material, and the size is not appropriate. The purpose of this study was to propose a customized sleeve finger splint model with a conical shape along with the finger surface from the proximal phalanges to the distal phalanges. Design optimization using topology optimization was carried out to reduce mass and volume while maintaining the stress strength of the model. The stages of the method in this research were modeling design, preprocessing analysis, topology optimization, and postprocessing analysis. Topology optimization design was set with 70% mass in response constraint. The analysis results showed a significant reduction in the model mass of 42.18%, from 6.78 grams to 3.92 grams. Meanwhile, the maximum equivalent stress increased slightly by 3.42%, from 8.12 MPa to 8.4 MPa. Even though there was an increase in equivalent stress after topology optimization, the sleeve finger splint model was still categorized as safe, with a safety factor of 3.39.
Implementation of Failure Mode and Effect Analysis (FMEA) for centrifugal pump maintenance in water supply distribution system Zakki Fuadi Emzain; Zean Galang Wardhana; Satworo Adiwidodo; Siti Duratun Nasiqiati Rosady; Prasetyo Prasetyo; Muhammad Andi Nova
Jurnal Polimesin Vol 22, No 3 (2024): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i3.4739

Abstract

A centrifugal pump is an essential mechanical device in the Regional Drinking Water Company (PDAM) to distribute sterile water from the reservoir to local community houses by flowing the fluid through the pipeline. However, improper and inadequate maintenance of centrifugal pumps can result in component damage, including bearings that are broken, ripped, or damaged mechanical seals. Therefore, for the water supply to continue smoothly, proper maintenance needs to be carried out so that the engine's performance will be maintained and last longer. This study aims to conduct a maintenance analysis on centrifugal pumps utilized by the PDAM of Madiun City. The Failure Modes and Effects Analysis (FMEA) method was employed to assess the potential failure of a system, design, process, or service by implementing a systematic approach to analyze damage and devise maintenance strategies. The FMEA analysis revealed that the shaft of the centrifugal pump component had the highest Risk Priority Number (RPN) value, which amounts to 294. The wearing ring had the lowest RPN value among the centrifugal pump components, with a value of 54. The Pareto diagram results classified six components: shaft, clutch, stuffing box, motor, impeller, and mechanical seal to recommend preventative maintenance action. Additionally, three other components suggested for corrective maintenance were the bearing, packing, and wearing rings
Desain dan Analisis Elemen Hingga Model Wrist Hand Orthosis Berbasis Metode Pemodelan Reverse Engineering Zakki Fuadi Emzain; Nanang Qosim; AM. Mufarrih; Yusuf Dewantoro Herlambang; Fatahul Arifin
Jurnal Rekayasa Mesin Vol 18, No 1 (2023): Volume 18, Nomor 1, April 2023
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v18i1.3936

Abstract

Salah satu treatment untuk spasticity efek pasca stroke, fracture karena kecelakaan, injury karena cedera olahraga, dan musculoskeletal disorders karena pekerjaan kantoran pada pergelangan tangan selain dengan operasi yaitu dengan penggunaan wrist hand orthosis. Umumnya pembuatan medical device tersebut menggunakan metode konvensional yang mempunyai kekurangan. Hadirnya teknologi reverse engineering (RE) dapat diaplikasikan dalam bidang medis seperti pembuatan alat prosthetic atau orthosis. Pada penelitian ini bertujuan untuk mengembangkan desain wrist hand orthosis berbasis reverse engineering dan menganalisisnya menggunakan metode elemen hingga. Metode penelitian meliputi 3D scanning, CAD modelling, model analysis, dan post processing. Material model yang digunakan adalah ABS dengan variasi ketebalan 5 mm, 6 mm, dan 7 mm, serta besar nilai pembebanan mulai dari 5 N sampai 25 N. Hasil analisis equivalent stress menunjukkan model ketebalan 5 mm mampu menahan load 25 N dengan maximum equivalent stress sebesar 13.52 MPa yang masih tergolong aman dengan nilai safety factor 2.11 dengan area kritis di ujung punggung telapak tangan model antara ibu jari dan jari telunjuk. Hasil equivalent elastic strain dan deformation juga mempunyai tren grafik yang sama dengan nilai maximum pada model ketebalan 5 mm yaitu masing-masing sebesar 0.0057 mm dan 0.616 mm. Dari hasil analisis tersebut dapat disimpulkan bahwa model wrist hand orthosis berlubang voronoi yang memiliki bentuk seperti surface tangan manusia dengan ketebalan minimalis 5 mm mampu bekerja dengan baik memfiksasi tangan pasien untuk proses rehabilitasi.
Peningkatan Mutu Sekolah Berbasis IT Melalui Pelatihan Aplikasi Pendidikan Di KB Bina Cendikia Sidorejo Jabung Kabupaten Malang Rizza, Muhammad Akhlis; Monasari, Ratna; Emzain, Zakki Fuadi; Amalia, Zakiyah; Agustriyana, Lisa
Jurnal Pengabdian Multidisiplin Vol. 3 No. 2 (2023): Jurnal Pengabdian Multidisiplin
Publisher : Kuras Institute & Scidac Plus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51214/japamul.v3i2.602

Abstract

Teknologi telah masuk ke berbagai aspek kehidupan manusia saat ini. Salah satu contohnya adalah penggunaan teknologi dalam pendidikan di Kelompok Bermain (KB). Penelitian ini terintegrasi dengan kegiatan pengabdian kepada masyarakat yang bertujuan untuk melatih guru-guru KB Bina Cendikia untuk 1) menggunakan sarana berbasis IT, 2) memberikan gambaran tentang aktivitas guru KB Bina Cendikia dalam pembuatan media belajar, pengerjaan administrasi sekolah dan pengerjaan laporan dalam berbagai aplikasi. Hasil kegiatan pengabdian pada masyarakat di KB Bina Cendikia 1) Meningkatnya kemampuan guru dalam mengoperasikan laptop pada aplikasi dapodik, data centerlink, MS word, MS excel, power point, dan aplikasi tambahan secara baik dan benar, 2) Guru menyambut baik penggunaan laptop dalam pembuatan media pembelajaran, pengerjaan administrasi sekolah dan laporan dalam berbagai aplikasi di KB Bina Cendikia.
Perancangan dan Analisis Model Splint Berbasis Reverse Engineering Untuk Rehabilitasi Tangan Mufarrih, Am; Emzain, Zakki Fuadi; Harijono, Agus; Amrullah, Utsman Syah
Jurnal Mesin Nusantara Vol 6 No 2 (2023): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v6i2.21327

Abstract

Pertolongan pertama cedera lengan akibat kecelakaan, imobilisasi harus dilakukan untuk mengurangi pergerakan yang menyebabkan rasa nyeri pada bagian lengan yang cedera, melindungi lengan dari benturan, dan membantu proses penyembuhannya. Imobilisasi biasanya dilakukan dengan pembidaian atau splint. Saat ini, papan kayu yang digunakan sebagai pembidaian menjaga posisi anggota tubuh yang cedera. Namun, bentuk papan kayu tidak mengikuti bentuk tubuh pasien, yang membuatnya kurang nyaman dan memakan waktu lebih lama untuk dipasang. Studi ini mendesain dan menganalisis model splint yang digunakan untuk rehabilitasi cedera tangan. Untuk membuat splint tangan ini lebih sesuai dengan bentuk dan nyaman digunakan, mereka dirancang dengan memperhatikan variasi ukuran dan bentuk anatomi pasien. Teknologi reverse engineering (RE) dan rapid prototyping (RP) dapat digunakan dalam bidang medis, seperti membuat alat orthosis atau splint. Metode penelitian ini dimulai dengan membaca literatur, menggambar 3D, membuat model CAD, menganalisis model, mencetak 3D, dan pasca-proses. Untuk model ini, material ABS dengan ketebalan 5 mm, 6 mm, dan 7 mm serta nilai pembebanan 5 N hingga 25 N digunakan. Hasil analisis tekanan equivalent menunjukkan bahwa model ketebalan 5 mm mampu menahan tekanan 25 N dengan tekanan maksimum equivalent sebesar 13.52 MPa, yang masih dianggap aman dengan nilai safety factor 2.11, dan area penting di ujung punggung telapak tangan model antara ibu jari dan jari telunjuk.
Analisis Pengaruh Kuat Arus dan Aliran Gas Argon terhadap Kekuatan Tarik pada Proses Las TIG Material SUS 201 Harijono, Agus; Mufarrih, AM.; Emzain, Zakki Fuadi; Hariyanto, Moh. Nasir
Jurnal Mesin Nusantara Vol 6 No 2 (2023): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v6i2.21328

Abstract

Proses pengelasan Gas Tungsten Arc Welding (GTAW) dilakukan dengan cara mencairkan filler rod ke material yang akan dilas. Pengaturan parameter proses pengelasan GTAW pada material SUS 201 belum menghasilkan kekuatan sambungan yang optimum, sehingga perlu dilakukan penelitian tentang pengaruh parameter pengelasan terhadap kekuatan tarik hasil pengelasan GTAW material SUS 201. Tujuan dari penelitian ini yaitu untuk mengetahui pengaruh kuat arus dan aliran gas argon terhadap kekuatan tarik hasil sambungan las GTAW material SUS 201. Rancangan percobaan menggunakan full faktorial dan analisis data menggunakan ANOVA. Variabel bebas yang digunakan kuat arus (50A;60A;70A), dan aliran gas argon (5;10;15 liter/menit). Variabel terikatnya adalah kekuatan tarik. Hasil penelitian menunjukan bahwa aliran gas argon dan kuat arus berpengaruh signifikan terhadap kekuatan tarik hasil las GTAW material SUS 201. Nilai kekuatan tarik maksimum hasil las GTAW dengan kuat arus 70A dan aliran gas argon 15 liter/menit sebesar 757,29 MPa dan nilai terendah terdapat pada kuat arus 50A dan aliran gas argon 5 liter/menit sebesar 499,46 MPa. Semakin besar kuat arus maka kekuatan tarik semakin besar. Semakin besar aliran gas argon maka kekuatan tarik semakin besar pula. Dari pengamatan mikro diketahui bahwa variasi kuat arus 50A dan aliran gas argon 5 liter/menit struktur mikro ferrit lebih dominan dibandingkan perlit maka dinyatakan kekuatan tarik rendah. Sedangkan pada variasi kuat arus 70A dan aliran gas argon 15 liter/menit struktur mikro lebih dominan perlit dibandingkan ferrit maka dinyatakan kekuatan tarik tinggi. Data pengamatan struktur mikro ini sesuai dengan data hasil pengujian tarik.
Transformer oil degradation detection system based on color scale analysis Hakim, Muhammad Fahmi; Prasojo, Rahman Azis; Duanaputri, Rohmanita; Wijaya, Bustani Hadi; Fidya Amaral, Hanifiyah Darna; Emzain, Zakki Fuadi
Indonesian Journal of Electrical Engineering and Computer Science Vol 37, No 1: January 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v37.i1.pp15-25

Abstract

The rise in power transformer load results in degradation of the condition of the transformer oil and ultimately a deficiency in the distribution of electrical energy. This degradation can be slowed down by reconditioning transformer oil based on oil color detection. This research aims to design, test and validate a transformer oil color testing system based on color sensor and microcontroller. To obtain an accurate system, tests were carried out on selecting the types of sensors, the color of the chamber walls, and the shapes of transformer oil sample vessel used. The oil color scale of the samples was determined visually according to the ASTMD1500, 2009 standard as a benchmark. The test results showed that the TCS3200 color sensor was able to detect the color of all transformer oil samples. White chamber wall and test tube as oil sample containers were chosen to increase system accuracy. Overall, the system is able to detect the color of transformer oil, convert to the ASTMD1500, 2009 standard transformer oil color scale, determine the condition of the transformer oil and conclude the level of transformer oil degradation according to CIGRE-761, 2019. Validation results showed the system had an accuracy level of 92.65%.
THE UTILIZATION OF AUTOMATIC PLASTIC SEAL PRESS MACHINES TO IMPROVE PRODUCT PACKAGING QUALITY OF BREAD ENTREPRENEURS IN SINGOSARI, MALANG Emzain, Zakki Fuadi; Harijono, Agus; Mufarrih, AM.; Hidayatinnisa’, Nurul; Viyus, Vinan; Puspitasari, Etik; Amrullah, Utsman Syah; Suyanta, Suyanta
Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Vol. 7 No. 3 (2023): SEPTEMBER
Publisher : LPPM Univ. Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/abdidos.v7i3.1730

Abstract

Micro, Small, and Medium Enterprises (UMKM) are one of the driving forces of the economy in a local area and a booster for the community's welfare. One of the obstacles often faced by the bread entrepreneurs in Singosari District, Malang Regency, is the lack of quality product packaging that still uses manual tools and is not optimal in creating marketing content. This community service aims to provide automatic plastic seal press machines and training on marketing content creation for micro-business actors in the bread entrepreneurs so that it is expected to increase partners' competitiveness. The stages of community service were observation and coordination, providing machines, handing over machines, holding training, and evaluation. The results of the community service activities showed that the training participants were enthusiastic and actively participated during the training. The quality of product packaging after using a plastic seal press machine has also improved, evidenced by a tighter and well-protected packaging seal. The copywriting training has also broadened the participants' knowledge about strategies for creating product marketing content by utilizing applications available on Android.
Analisa Kebulatan pada Proses Drilling Material KFRP Mufarrih, Am; Harijono, Agus; Amrullah, Utsman Syah; Qosim, Nanang; Emzain, Zakki Fuadi
Jurnal Mesin Nusantara Vol 5 No 2 (2022): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v5i2.19472

Abstract

Proses drilling merupakan proses pemesinan yang paling banyak digunakan di industri otomotif dan manufaktur. Kinerja proses drilling pada material Komposit KFRP bisa diukur dengan karakteristik kualitas seperti kekasaran permukaan, burr height, kebulatan, konsumsi daya, gaya tekan dan delaminasi. Penelitian ini bertujuan untuk mengetahui pengaruh variasi variabel bebas sudut ujung pahat dan kecepatan makan terhadap variabel respon kebulatan. Rancangan percobaan menggunakan metode full faktorial yang berupa orthogonal array L9 dengan replikasi sebanyak dua kali. Variabel bebas yang divariasikan adalah sudut ujung pahat (100°, 118°, 140°) dan kecepatan makan (50 mm/menit, 115 mm/menit dan 180 mm/menit). Variabel respon yang diamati adalah kebulatan. Proses drilling dilakukan menggunakan mesin CNC Milling. Pahat yang digunakan adalah twist drill HSS Nachi diameter 10 mm. ANOVA digunakan untuk mengetahui variabel-variabel bebas yang memiliki pengaruh signifikan terhadap variabel respon yang diamati. Hasil penelitian menunjukkan bahwa sudut ujung pahat dan kecepatan makan berpengaruh signifikan terhadap respon kebulatan. Peningkatan sudut ujung pahat dan kecepatan makan akan meningkatkan penyimpangan kebulatan, sehingga agar diperoleh profil kebulatan yang baik, maka perlu menggunakan sudut ujung pahat yang kecil serta kecepatan makan yang rendah.
Co-Authors A. Hanif Firdaus Abdul Syukur Alfauzi Agus Harijono Ahmad Hanif Firdaus Ahmad Hanif Firdaus Akhlis Rizza, Muhammad Ali Sai’in AM Mufarrih AM. Mufarrih Amalia, Zakiyah Amaral, Hanifiyah Darna Fidya Amrullah, Utsman Syah Amrullah, Utsman Syah Andika Angger Nugraha Andre Kurniawan Budhi Prasetiyo Eko Yudianto Etik Puspitasari Etik Puspitasari, Etik Fataa Kusumattaqiin Fatahul Arifin Fatahul Arifin Fina Andika F. A. Hakim, Muhammad Fahmi Harijono, Agus Hariyanto, Moh. Nasir Hery Setyawan Hidayatinnisa’, Nurul Huang, Shyh-Chour Kris Witono Lalu Giat Juangsa Putra Lisa Agustriyana Lisa Agustriyana Lisa Agustriyana Lutfi Hakim Marliyati Marliyati Mochammad Muzakki Moh. Nasir Hariyanto Monasari, Ratna Muhammad Akhlis Rizza Muhammad Andi Nova Muhammad Andi Nova Nanang Qosim Nanang Qosim Nanang Qosim Nugroho, Pipit Wahyu Nurchajat Nurhadi Nurhadi Prasetyo Prasetyo Prasojo, Rahman Azis Purwanto, Wawan Rangga E. Santoso Ratna Monasari Ratna Monasari Rohmanita Duanaputri Sarjiyana Satworo Adiwidodo Siti Duratun Nasiqiati Rosady Subagiyo Subagiyo Sudarmadji Sudarmadji Supriyo Supriyo Suyanta Suyanta Syamsul Hadi Syamsul Ph.D M.A. Hadi Sza Sya Monica Valeria Viyus, Vinan Wijaya, Bustani Hadi Yang, Yu-Sheng Yusuf Dewantoro Herlambang Yusuf Dewantoro Herlambang Zean Galang Wardhana