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All Journal R.E.M (Rekyasa Energi Manufaktur) Jurnal Jurnal Abdi Insani
Prasetia, Adhita
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Evaluation of AUG-WID-R01 Spring Test Equipment: Evaluasi Alat Uji Pegas AUG-WID-R01 Prasetia, Adhita; Martoni
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 9 No 2 (2024): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v9i2.1709

Abstract

Sepeda Motor Sesuai fungsinya sebagai alat transportasi ringan kendaraan bermotor harus memenuhi standar desain keselamatan dan keamanan bagi penggunanya, shock absorber merupakan komponen yang didesain untuk meredam getaran akibat guncangan. Tujuan dari penelitian ini adalah (1) menghitung nilai koefisien pegas pada sepeda motor (2) menghitung simpanan hasil perhitungan dan pengujian. Dalam penelitian ini menggunakan metode Desain Eksperimen yaitu melakukan pengujian untuk mendapatkan data selanjutnya mengolahnya menggunakan teori getaran bebas, dan mengitung nilai k & simpangan menggunakan teori. Dari hasil penelitian dan analisis yang dilakukan dapat diperoleh karakteristik pengaruh getaran. Berdasarkan hasil perhitungan, nilai k pada pegas diperkirakan sebesar ± 18 KN/m dan simpangan maksimum ± 12 cm. (2) Berdasarkan hasil pengujian nilai k pada pegas dihasilkan ± 24,6 KN/m dan simpangan maksimum ± 4,0 cm
Analysis of Water Distribution in Building A in Widyatama University Environment: Analisis Distribusi Air Gedung A di Lingkungan Universitas Widyatama Suryaman, Nia Nuraeni; Komarudin, Udin; Martoni; Prasetia, Adhita; Santoso, Heru; Fahruddin, A'rasy
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 9 No 2 (2024): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v9i2.1711

Abstract

The need for clean water increases every year, while the means to provide clean water require planning. The importance of water in the realm of education is comparable to that of household needs. Water on the 3rd and 4th floors of Building A often doesn't flow. The aim of this research is to identify the root cause of the insufficient water flow on the 3rd and 4th floors of Widyatama University Building A, and to devise a solution for the water flow distribution system. The research employs a variety of methods, including literature review, data collection, data analysis, results analysis, and interpretation. The conclusion is that the water drainage on the 3rd and 4th floors is 0.612 L/s and 0.510 L/s, which is below the standard (0.9–2 L/s). The drainage of water in the main pipe was uncertain based on its diameter. The solution to this problem is to install booster pumps on the 3rd and 4th floors. The next solution is to change the main pipe diameter to 1 1⁄4".
OPTIMALISASI KUALITAS AIR DI KOBER DAARUL AMAL MENGGUNAKAN SISTEM FILTRASI UNTUK MENINGKATKAN SANITASI LINGKUNGAN DAN KESEHATAN ANAK Sofia, Evi; Septianissa, Selly; Suryaman, Nia Nuraeni; Komarudin, Udin; Martoni, Martoni; Chandrasari, Ayu Zahra; Prasetia, Adhita; Zanika, Sugih Yusuf; Nugraha, Suhud; Trisnawan , Lukman
Jurnal Abdi Insani Vol 12 No 6 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i6.2604

Abstract

Daarul Amal Playgroup (KOBER), an early childhood education establishment situated in Bandung City, plays a pivotal role in fostering an intelligent and healthy generation.  Nonetheless, despite its significant role in educating children, this institution encounters some obstacles, particularly with the quality of water utilized in everyday operations.  This community service initiative seeks to enhance water quality at KOBER Daarul Amal by instructing students on the significance of clean water and implementing a filtration system utilizing three filter media: zeolite, ferrolite, and activated charcoal.  The outcomes of the educational initiatives for students indicated an increased awareness regarding the significance of clean water. The outcomes of educational initiatives indicate that students have increased their awareness regarding the significance of clean water. Furthermore, the implementation of water filtration has enhanced the water quality at the site, as demonstrated by the initial TDS test results, which ranged from 455.3  ppm to 359,7 ppm, and the turbidity value, which decreased from 4.50 NTU to 4.48 NTU. In addition, based on the results of the questionnaire given to the teachers, it can also be concluded that this community service activity has met its targets.
Static Load Evaluation of Kaplan Turbine Shaft in Hydraulic Pump System Using Finite Element Analysis (FEA) Method: Evaluasi Beban Statis Poros Turbin Kaplan Pada Sistem Pompa Hidrolis Menggunakan Metode Finite Element Analysis (FEA) Muzakki, Haykal; Komarudin, Udin; Prasetia, Adhita
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 11 No 1 (2026): In Progress
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v11i1.1827

Abstract

The turbine shaft is a critical component in hydraulic pump systems as it transmits mechanical energy from the turbine to the pump and experiences combined loads during operation. This study aims to evaluate the structural safety of the turbine shaft geometry under operational loading conditions using the Finite Element Analysis (FEA) method. A three-dimensional shaft model was developed based on actual field measurements and analyzed using SolidWorks Simulation with a torsional load of 6.016 × 10³ Nm calculated from a turbine power of 157.5 kW and a rotational speed of 250 rpm. The shaft material used was SCM4 (AISI 4140). Simulation results show a maximum von Mises stress of 75 MPa with a safety factor of 8.27 relative to the material yield strength. The maximum displacement of 0.4 mm and maximum strain of 2.9 × 10⁻⁴ remain within the elastic range of the material. The results indicate that the shaft design is theoretically safe under static loading; however, indications of wear observed in the field suggest the influence of long-term mechanical degradation during operation.
Co-Authors Ayu Zahra Chandrasari Fahruddin, A'rasy Heru Santoso Komarudin, Udin Martoni Muzakki, Haykal Nugraha, Suhud R Evi Sovia Selly Septianissa Suryaman, Nia Nuraeni Trisnawan , Lukman Zanika, Sugih Yusuf