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All Journal INTEK: Jurnal Penelitian Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Teknik Terapan (J-TETA)
Amrullah, Utsman Syah
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Corrosion Rate of Black Chromium Coating Result of Electroplating on Copper Hadi, Syamsul; Valeria, Sza Sya Monica; Adiwidodo, Satworo; Amrullah, Utsman Syah; Takwim, R.N. Akhsanu; Firmansyah, Hilmi Iman
INTEK: Jurnal Penelitian Vol 7 No 2 (2020): October 2020
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v7i2.2681

Abstract

The problem faced is that the white chromium coating has a low selling value or aesthetic value than the black chromium layer which is more in demand, especially by the younger generation who prioritizes aesthetics. The purpose of the corrosion test was to determine the corrosion resistance ability of the black chromium coating resulting from the electroplating process on the relationship between the solution temperature and the immersion time of copper in a corrosive solution. Corrosion test methods include literature studies, field observations, weighing specimens, immersing specimens in corrosive solutions, weighing specimens, calculating corrosion rates, and data analyzing. Corrosion test results show that the higher the temperature of the solution and the longer the immersion time, the smaller the corrosion rate for the lowest conditions at 30oC and a duration of 5 minutes with a corrosion rate of 0.2004 mm/year and the highest conditions at a temperature of 50oC and a duration of 9 minutes at a rate of corrosion of 0.0108 mm/year.
Analisis Numerik Pengaruh Variasi Tinggi Vortex Generator terhadap Karakteristik Aerodinamika Sayap Berbasis Computational Fluid Dynamics (CFD) Perkasa, Rilis Eka; Mashudi, Imam; Gunawan, Chandra; Amrullah, Utsman Syah
Jurnal Teknik Terapan Vol. 4 No. 2 (2025): Oktober
Publisher : P3M Politeknik Negeri Jember

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Abstract

A vortex generator is an aerodynamic device installed on wings or other surfaces to enhance lift and delay stall at high angles of attack. This study aims to analyze the effect of vortex generator installation on the aerodynamic characteristics of a straight wing. Numerical simulations were conducted using the computational fluid dynamics (CFD) method on a three-dimensional wing model with a NACA 4412 airfoil section. Triangular vortex generators with heights of 10 mm and 20 mm were applied, while a clean wing without vortex generator was used as a reference. The wing was subjected to an airflow velocity of 50 m/s at several angles of attack. The main parameters observed were the lift coefficient (CL), drag coefficient (CD), and flow visualization around the wing surface. The simulation results show that the addition of a 10 mm vortex generator increases CL at higher angles of attack compared to the clean wing. In contrast, the installation of a 20 mm vortex generator primarily resulted in a higher CD and did not provide a positive contribution to lift performance. Overall, it could be concluded that  for this research configuration, the 10 mm vortex generator increase the aerodynamic performance of the wing.
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.
UPAYA PENINGKATAN PRODUKTIVITAS UMKM HASIM FURNI SIDOARJO MELALUI MODIFIKASI MESIN AMPLAS KAYU Mufarrih, AM.; Rohman, Fatkhur; Monasari, Ratna; Amrullah, Utsman Syah; Hartono, Moh.
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 5 (2024): Vol. 5 No. 5 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i5.35608

Abstract

UMKM Hasim Furni adalah salah satu industri kerajinan kayu di Kabupaten Sidoarjo yang bergerak di bidang manufaktur furniture setengah jadi, khususnya dalam pembuatan kaki-kaki kursi, kaki-kaki lemari, kaki-kaki meja, dan hiasan lain untuk pesanan perusahaan manufaktur furniture. Proses produksi furnitur setengah jadi tidak terlepas dari tahap pengamplasan. Ketidaknyamanan posisi kerja memperlambat penyelesaian pekerjaan, yang pada akhirnya mengurangi produktivitas mesin amplas kayu. PPM ini dilakukan untuk memodifikasi mesin amplas kayu supaya lebih produktif dan nyaman digunakan. Metode penyelesaiannya meliputi; survey lapangan, analisis ergonomis menggunakan RULA, modifikasi mesin amplas kayu, pemasangan mesin amplas kayu hasil modifikasi, pembuatan SOP pengoperasian mesin amplas kayu, dan pelatihan penggunaan mesin amplas kayu. Hasil modifikasi mesin amplas kayu ini berhasil membuat posisi kerja yang nyaman sehingga produktivitas kerja dan kapasitas produksi meningkat. Analisis ergonomis menggunakan RULA dijadikan referensi untuk menentukan dimensi mesin amplas yang dirancang. Aspek ergonomi dipertimbangkan dalam perancangan fasilitas dan lingkungan kerja agar lebih efektif dan nyaman, sehingga produktivitas dapat meningkat.
Co-Authors AM Mufarrih Etik Puspitasari, Etik Fatkhur Rohman Gunawan, Chandra Harijono, Agus Hidayatinnisa’, Nurul Hilmi Iman Firmansyah Imam Mashudi, Imam Moh. Hartono Monasari, Ratna Perkasa, Rilis Eka R.N. Akhsanu Takwim, R.N. Akhsanu Satworo Adiwidodo Suyanta Suyanta Syamsul Hadi Valeria, Sza Sya Monica Viyus, Vinan Zakki Fuadi Emzain