Article Per Year (5 Year)
p-Index From 2021 - 2026
1.325
P-Index
This Author published in this journals
All Journal Jurnal Inotera Vocatech : Vocational Education and Technology Journal Journal of Welding Technology Jurnal Teknologi Jurnal Polimesin Jurnal Mesin Sains Terapan
Edi Saputra
Politeknik Negeri Lhokseumawe
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search

 1 
Strength Analysis Plastic Deformed Centrifugal Pumps Edi Saputra; Nuzuli Fitriadi
Jurnal Inotera Vol. 6 No. 1 (2021): January-June 2021
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol6.Iss1.2021.ID136

Abstract

The G-3503 centrifugal pump functions to flow Diethanolamine fluid with a viscosity of 380 Cp which functions to reduce H2S and CO2 levels in natural gas. When operating, the pump shaft experiences a torque load which causes the shaft to be twisted by 80. From the exact and finite element analysis results, the shear stress that occurs on the shaft is greater than the shear stress of the shaft material. Thus, the shaft is deformed plastically. The shear stress that occurs is 164 MPa
Pengaruh Pengelasan dan Media Quenching Terhadap Kekuatan Tarik dan Kekerasan Material ASTM A 36 Hamdani Hamdani; Jufriadi Jufriadi; Ariefin Ariefin; Edi Saputra; Mohd. Ghiffari
Jurnal Teknologi Vol 21, No 2 (2021): Oktober 2021
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.503 KB) | DOI: 10.30811/teknologi.v21i2.2430

Abstract

In this study the tensile strength and hardness of ASTM A36 material that weld by SMAW process with variations in cooling media, namely seawater, air, and oil. The highest tensile strength value is 81.16 Kgf/mm2 with seawater cooling media. The highest hardness value in the base metal area is 93.5 HRC with oil cooling treatment. The highest hardness value in the weld metal on specimens using air cooling treatment is 93.33 HRC. The highest hardness value in the HAZ area is in the specimens using seawater cooling treatment with a value of 90.83 HRC. The Phase change during quenching proses with different media probably affects the mechanical properties of ASTM A36 material.
Residual Stress Analysis in Pipe Welding ASTM A106 Grade B Using FEM Simulation Hamdani Hamdani; Turmizi Turmizi; Bukhari Bukhari; Edi Saputra; Ilyas Yusuf
Journal of Welding Technology Vol 4, No 2 (2022): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v4i2.3507

Abstract

Fabrication technology has also penetrated the oil and gas industry, such as in the case of joining materials, one of the applications being made is the connection of pipes by welding. In the welding process, the heat distribution is uneven and the cooling rate is fast, resulting in residual stresses. This is indicated by changes in the microstructure in the weld area and the Heat Affecting Zone (HAZ), causing the material to become hard but brittle (brittle). This can cause structural failure in the connection area. This study investigates the residual stresses in pipe welding ASTM A 106 Grade B using the finite element method with ANSYS R17.2 software. The simulation is divided into 2 steps, namely thermal and structural analysis. The variation used in this simulation is the electric current as the welding heat input. The electric current is 110 A with an effective heat input of 2337.5 Watts with a maximum residual voltage of 399.59 MPa, 2762.5 Watts with a current of 130 A of 420.01 MPa, 3400 Watts with a current of 160 A of 454.06 MPa. The simulation shows that an increase in electric current in the range of 110 to 160 A can imply an increase in residual voltage. A welding heat input is obtained with the minimum residual voltage value, namely at a current of 110 A with an effective heat input of 2337.5 watts.
Study of Mechanical Strength of Composite Materials Made from Marble and Sago Fiber Waste for Rencong Marble Souvenirs Storage Ihsan Anwar; Asbahrul Amri; Lindawati Lindawati; Sandika Putri Rahayu; Edi Saputra
Jurnal POLIMESIN Vol 21, No 1 (2023): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i1.2627

Abstract

Kedai Kandang Village, South Kluet District, South Aceh Regency, is one of the sago-producing areas. In this study, the waste resulted from the processing of sago was used as a reinforcing material for composite materials. This research was conducted to determine the mechanical strength of the composite made from marble waste reinforced with sago fiber waste to be used as rencong Marble souvenir storage. The composition of the mixture in the samples used was 85:10:5, 80:10:10, 90:7.5:2.5, and 80:12.5:7.5. The mechanical strength was determined through tensile strength testing. The results of the tensile test showed that the highest tensile strength values were shown in the sample with the percentage composition of a mixture of resin, marble powder, and sago fiber, 85:10:5. The average maximum stress value obtained is 18.707 N/m². The average modulus of elasticity obtained is 1.462 N/m².
Evaluasi Sifat Mekanik Baja Pegas Daun Mobil Isuzu Panther Raja Zulkarnaini; Hamdani Hamdani; Edi Saputra
Jurnal Mesin Sains Terapan Vol 7, No 1 (2023): JURNAL MESIN SAINS TERAPAN
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jmst.v7i1.3920

Abstract

Penelitian ini bertujuan untuk mengetahui sebuah proses rekondisi sifat mekanik pada baja pegas daun (Leaf Spring) dengan perlakuan panas normalizing, quenching, dan tempering spesimen dilakukan uji kekerasan dan uji tarik. Nilai kekerasan yang paling segnifikat pada daerah indentor uji yaitu 57 HRC pada spesimen baja pegas baru yang belum di rekondisi, nilai kekerasan tertinggi yaitu 61,3 HRC pada spesimen baja pegas daun bekas yang juga belum direkondisi, dan nilai kekerasan baja pegas daun rekondisi yaitu 61,3 HRC. Data perbandingan uji tarik menjelaskan tegangan tarik pada baja pegas daun rekondisi adalah sebesar 544,3 MPa, tegangan luluh tertinggi 266 MPa dan perpanjangan sebesar 1,34%. Dari data hasil pengujian tarik baja pegas daun rekondisi didapat hasil pada data material memiliki kekuatan tarik, kekuatan luluh serta kekerasan terendah dibandingkan dengan material baja pegas daun baru dan bekas. Kata kunci: sifat mekanik, baja pegas grade SUP 9A, perlakuan panas
Analisa Kegagalan Elevator Nerak Tipe WB 250 Untuk Mengangkut Sulfur Granulation Di PT. Medco E&P Malaka Hamdani, Hamdani; Fakhriza, Fakhriza; Saputra, Hendra; Bahri, Samsul; Saputra, Edi
VOCATECH: Vocational Education and Technology Journal Vol 7, No 1 (2025): August
Publisher : Akademi Komunitas Negeri Aceh Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38038/vocatech.v7i1.233

Abstract

AbstractPT. Medco EP Malaka operates one unit of the Nerak WB 250 elevator located in the Sulfur Granulation Unit (SGU), which functions as a material handling system for transferring granulated sulfur from the steel belt conveyor to the sulfur silo. This elevator is driven by an electric motor and gearbox connected to the driver idler shaft (head pulley). The driver idler rotates the rubber chain equipped with buckets containing sulfur granules, allowing the material to be transported vertically to the sulfur silo. However, frequent failures have occurred in several elevator components such as the rubber chain, snap ring, bucket rod, clamping sleeve, chain bushing, bucket, tension idler, as well as the upper and lower idlers. To analyze these failures, the Root Cause Analysis (RCA) method was employed using the Why-Why-Why Analysis (W3A) approach, which is a commonly used method at PT. Medco EP Malaka. Based on field observations and W3A analysis results, the main causes of failure were identified as misalignment in the elevator system due to worn idler bushings, detached snap rings, and malfunctioning proximity sensors—further aggravated by suboptimal preventive and predictive maintenance activities. Additional contributing factors include clumped sulfur accumulation, which increases the system load. Based on these findings, corrective actions were taken and improvements were made to strengthen both the Predictive Maintenance (PdM) and Preventive Maintenance (PM) programs in order to ensure the reliability of the NERAK WB 250 elevator system at the SGU.Keywords:Elevator Nerak; Sulfur Granulation; Maintenance; Root Cause Analysis (RCA)   AbstrakPT. Medco EP Malaka mempunyai 1 unit mesin elevator Nerak WB 250 yang ada pada Sulfur Granulation Unit (SGU) yang berfungsi sebagai alat pemindah sulfur yang sudah berbentuk granul dari steel belt conveyor menuju sulfur silo. Elevator ini digerakkan menggunakan motor listrik beserta gearbox yang terhubung ke shaft driver idler (head pulley). Driver idler memutar rubber chain yang dilengkapi dengan bucket berisi sulfur granul sehingga material dipindahkan secara vertikal menuju sulfur silo. Namun, sering terjadi kerusakan pada komponen elevator seperti rubber chain, snap ring, bucket rod, clamping sleeve, chain bushing, bucket, tension idler, upper dan lower idler. Untuk menganalisis kegagalan tersebut, digunakan metode Root Cause Analysis (RCA) dengan pendekatan Why-Why-Why Analysis (W3A), yang merupakan metode yang lazim digunakan di PT. Medco EP Malaka. Berdasarkan temuan lapangan dan hasil analisa W3A, diketahui bahwa penyebab utama kegagalan adalah misalignment pada sistem elevator akibat ausnya bushing idler, lepasnya snap ring, serta tidak berfungsinya proximity sensor, yang diperburuk oleh kurang optimalnya kegiatan preventive dan predictive maintenance. Faktor lain seperti tumpukan sulfur yang menggumpal dan menyebabkan beban lebih juga turut berkontribusi terhadap kegagalan sistem. Berdasarkan hasil analisa tersebut, dilakukan tindakan perbaikan serta penguatan program Predictive Maintenance (PdM) dan Preventive Maintenance (PM) agar keandalan sistem elevator NERAK tipe WB 250 di SGU dapat terjaga dengan baikKata Kunci:                                                  Pemilihan tindakan; Perawatan; Root Cause Analysis (RCA)  
Co-Authors Amri, Asbahrul Ariefin Ariefin Bukhari Bukhari Fakhriza, Fakhriza Fitriadi, Nuzuli Hamdani, Hamdani Hamdani, Hamdani Hendra Saputra Ihsan Ilyas Ilyas Jufriadi Jufriadi Lindawati Lindawati Lindawati Lindawati Mohd. Ghiffari Raja Zulkarnaini Samsul Bahri Sandika Putri Rahayu Turmizi Turmizi