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All Journal Machine : Jurnal Teknik Mesin MACHINERY: Jurnal Teknologi Terapan
Rizky Brillian Yuliandi
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Automotive Engineering Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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ANALISA PERAWATAN INTAKE PUMP DENGAN MENGGUNAKAN METODE RISK BASED MAINTENANCE (RBM) Ozkar F. Homzah; Ella Sundari; Rizky Brillian Yuliandi; Femi Permata Sari
Machine : Jurnal Teknik Mesin Vol 9 No 2 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i2.4352

Abstract

Intake Pump is one of the important equipment in the steam power plant of 3x10 MW electrical generator which functions to supply raw water to production of demin water, domestic water and service water. In the process of producing water through the intake pump there are several components of the intake pump that often experience damage, this can be a loss for the company, therefore requiring additional processing. In this study, the Risk Based Maintenance (RBM) method was carried out to achieve optimal maintenance by knowing the impact and risk of failure according to important intake pump components, namely impeller, bearing and shaft. Based on the analysis results of the RBM calculation, the consequences of risks accepted is low to 0.05% by the company that achieved to 221,498,196.507 Indonesian rupiah it’s to 0.13% of production capacity per year. This value exceeds the acceptance risk tolerance of 0.13% which has become a company provision. Therefore, it is necessary to plan the proposed maintenance period from the existing policy, which is carried out 48 times a year for each critical component such to reducing the number of consequences and risks to 198,002,597 Indonesian Rupiah or equal to 0.01%.
PENGARUH VARIASI TEKANAN DAN PENAMBAHAN UNSUR MAGNESIUM TERHADAP PENGECORAN ALUMINIUM PADA KOPLING PERAHU MOTOR Harahap, Muhammad Rizki; Rizky Brillian Yuliandi; Taufikurahman; Ella Sundari; Dodi Tafrant
MACHINERY Jurnal Teknologi Terapan Vol. 5 No. 2 (2024): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.12736345

Abstract

The universal joint coupling or U-joint is the part of the motor boat that connects the engine to the propeller shaft. The U-joint of a motor boat made of aluminum often suffers damage such as breaking due to loads when operating. The purpose of this research is to improve the quality of this product with the squeeze casting method with the addition of magnesium 3% and 4% and pressure variations of 70, 85 and 100 MPa for casting universal joint coupling products. The casting process is carried out by melting aluminum and mixing it with magnesium and then pressing it using a hydraulic pressure tool. After the casting process is complete, the specimen is trimmed for hardness testing. The results of the hardness test obtained the highest value on the pressure parameter of 100 MPa. For 4% Al-Mg with an emphasis of 100 MPa, the average hardness value was 94.66 BHN. For Al-Mg 3% with an emphasis of 100 MPa, the average value was 90.06 BHN. While the raw material has a hardness value of 57.52. It can be seen that the hardness value has increased from before. It can be concluded that the squeeze casting casting method and the addition of magnesium can affect the hardness value of aluminum.
Co-Authors Dodi Tafrant Ella Sundari Femi Permata Sari Homzah, Ozkar F Muhammad Rizki Harahap Taufikurahman