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Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi
Published by Universitas Pancasila
ISSN : 26551861     EISSN : 27162923     DOI : https://doi.org/10.35814
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering
Jurnal ini mempublikasikan artikel ilmiah berbasis penelitian, studi kasus, articles review, rekayasa dan inovasi yang mencakup teoritis maupun praktis serta pengembangannya. Topik artikel ilmiah yang dimuat ASIIMETRIK mencakup bidang Arsitektur, Teknik Sipil, Teknik Industri, Teknik Informatika, Teknik Mesin dan Teknik Elektro.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 411 Documents
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Identifikasi Risiko Keselamatan Pekerja Dengan Metode FMEA di Departemen Produksi PT. XYZ: Identification of Worker Safety Risks Using FMEA Method in Production Departments of PT. XYZ Muhammad Rifqi Saifudin; Sukanta Sukanta
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 2 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i2.4558

Abstract

This research was carried out because it is known that there are six potential work accidents that can occur production departments of PT. XYZ. PT XYZ, so it is necessary to identify employee safety risks to obtain the right solution to prevent the occurrence of work accidents, and the method chosen is failure mode and effect analysis. FMEA is a table-shaped identification tool that is useful for identifying errors, evaluating the effects of errors, and prioritizing errors. Data collection is carried out through observations, interviews, and discussions with employees in production departments of PT. XYZ. Accidents that are the main priority to resolve first are milling machine operators injured due to exposure to grams of iron that can result in delayed operator work because the accident has the largest RPN value of 210, with details of severity 6, occurrence 7, and detection 5. The conclusion of this study is that PT. XYZ, which does not provide self-protection equipment for workers in the production department, is the most prevalent cause of work accidents, so more attention should be paid to the procurement of protective equipment and requiring workers to wear it.
Analisis Pengaruh Desain Tangki Mobil untuk Kapasitas 5000 Liter Gas Terhadap Tekanan Permukaan: The Impact of Surface Pressure on the Design of a 5,000-Liter Automobile Gas Tank Faris Setio Wibowo; Delvis Agusman; Riyan Ariyansah
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 2 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i2.4563

Abstract

The tank car is a closed storage area or tank designed to contain the liquid as a gas or liquid at a different pressure than the ambient pressure. Chemical reactions with the fluid inside a car's tank or physical phenomena the fluid encounters can cause instantaneous changes in the condition of the tank, resulting in occasional cracking or leaking. This research aims to determine how the design shape of a 5000-liter tank affects surface pressure. The method utilized is the finite element method based on computer-aided engineering (CAE) with the software Ansys Workbench Student Version. The results demonstrated that the maximal stress value and total deformation of the Model 2 tank were significantly different from those of the Model 1 and Model 3 tanks. The tank variation of the model is known to have the lowest stress value of 1.1309 MPa and the lowest deformation value of 0.0042421 mm. Therefore, the Model 2 tank variants are more recommended than the Models 1 and 3 for vehicles with a 5000-liter capacity.
Cover and Preface Vol. 5 No. 1, January 2023 Editor
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 1 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Desain dan Analisis Kekuatan Rangka Mesin Pres Batako Menggunakan Finite Element Method: Design and Strength Analysis of Brick Press Machine Frame using Finite Element Method Anggi Pratama; Delvis Agusman
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 2 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i2.4658

Abstract

This study investigates the safety factor and stress in order to determine the utmost dynamic load the press machine frame can withstand. Dynamic loads occur because of the working mechanism of the press machine, which suppresses the brick components. Test simulation stress analysis using the computer program Inventor Professional Student 2023 with the finite element method in a material structure simulation test of a brick press machine frame with a dynamic load treatment the frame design model uses mild steel material with dimensions of 880 mm by 545 mm by 1200 mm. The variable loads are 700 kg, 1000 kg, and 1500kg. The simulation results show the displacement value at a load of 700 kg = 0,25 mm; 1000 kg = 0,36 mm; and 1500 kg = 0,54 mm. The von Mises stress value is 700 kg = 70,03 MPa; 1000 kg = 100,4 MPa; and 1500 kg = 150,9 MPa. The safety factor value is 700 kg = 2,96; 1000 kg = 2,06; and 1500 kg = 1,37. The simulation results show that the frame design of the brick press machine has a safety factor of 2,06 and can withstand a dynamic load of up to 1000 kg.
Usulan Rancangan Layout Gudang Menggunakan Metode Shared Storage pada PT. XYZ: Proposed Warehouse Layout Design using the Shared Storage Method at PT. XYZ Ina Ledya; Dene Herwanto; Ardhini Rhisnu Fadylla
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 2 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i2.4660

Abstract

The company has a raw material warehouse to carry out its production process, but the warehouse needs to be optimized because employees experience limited access to raw materials and the current warehouse layout is still not optimal. This research was conducted to find out the proposed improvements to the raw material warehouse layout so that the company can optimize the function of the existing raw material warehouse within the company. The Shared Storage Method can be used in layout design by arranging storage areas according to the condition of the warehouse floor area. The shared storage method assists in optimizing product storage time so that you can find out when the product will enter and leave the warehouse storage area. The proposals obtained influenced increasing the previous warehouse capacity. There was an increase in capacity of 21.5%. The proposals obtained influenced increasing the previous warehouse capacity. The results of the research on the application of the design for the new layout, at one level, have a warehouse capacity of 33 pallets with ± 14 tons of product. However, by optimizing warehouse capacity by adding one level above it, the warehouse capacity can be doubled, namely 66 pallets with 28 tons of product with product placement between the first and second levels of the same level. The use of warehouse layouts is intended for new image layouts from this study.
The The Effect of Micro Geometry with Various Forms as Passive Flow Control in NACA 4415: Pengaruh Geometri Berukuran Mikro Dengan Variasi Bentuk Sebagai Kontrol Aliran Pasif di NACA 4415 James Julian; Rizki Aldi Anggara; Fitri Wahyuni; Nely Toding Bunga
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 2 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i2.4678

Abstract

This study investigates the effect of variations in the micro geometry with various forms as passive flow control devices on the aerodynamic capability of the airfoil. Micro-cylinder, micro-slat, and micro-cube are installed close to the leading edge of the NACA 4415 airfoil as a micro geometric variation of passive flow control devices with a predetermined diameter of 3% c located at coordinates x= 0% c and y= 8 %c of the leading edge of the airfoil. The Reynolds number used in this study is Re = with AoA variations from 0°-30°. This study's results show a decrease in Cl of 12% with a micro-cylinder, 26% with a micro-slat, and 28% with a micro-cube. In addition, the Cd produced by using the variation of the device micro geometry has increased significantly. Thus, the final result is a lift-to-drag ratio of more petite than the without micro. In the streamlined contour shown when the airfoil is at a high angle of attack, the use of micro geometric variations of passive flow control devices can have an effect that causes reduced recirculation that occurs in the airfoil. However, the impact of these devices is not optimal, resulting in a reduction in the aerodynamic capability of the NACA 4415 airfoil.
Perancangan Sistem Pendingin dan Tata Udara pada Ruang Mesin produksi di PT. X untuk Menjaga Performa dan Ketahanan Komponen Mesin: Installation of Refrigeration and Air Conditioning Systems in The Production Facility on PT. X to Maintain the Performance and Durability of Machine Components Habibi Santoso
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 2 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i2.4683

Abstract

Several influencing factors, including temperature, air cleanliness, and humidity levels, are necessary to preserve the performance and durability of engine components against injury. Many mechanical and electrical components of the machine were damaged at Company X because the room's temperature, air quality, and humidity did not comply with the machine's standard operating conditions. If nothing is done to enhance the engine room's air conditioning, the engine will sustain greater damage. The purpose of this research is to design a cooling and air-conditioning system in the production machine space in PT. X to maintain the performance and durability of machine components. The engine compartment is 104 m2. The design of the refrigeration and air conditioning systems includes the calculation of the required capacity, analysis, and the creation of design drawings in the engine compartment. According to the calculation, the required engine room refrigeration capacity unit is 9.36 kW with 1640 l/s. This capacity incorporates the requirement for fresh air, which is 245 l/s. With this capacity, the engine's optimal temperature and oxygen quality can be attained.
Analysis of the Use of Bio Flap on NACA 4415 with Numerical Methods: Analisis Penggunaan Bio Flap pada NACA 4415 dengan Metode Numerik James Julian; Saphira Anggraita Siswanto; Fitri Wahyuni; Nely Toding Bunga
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 2 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i2.4768

Abstract

This study was conducted using the Computational Fluid Dynamics (CFD) method using the Reynolds Averaged Navier Stokes (RANS) approach. The type of airfoil used in this study is the asymmetry NACA 4415 airfoil type. In this paper, computational tests were carried out on the airfoil with the addition of bionic flaps on its trailing edge. This study's update tests three variations of the Reynolds number: Re = 106, Re = 5 × 105, and Re = 3 × 105. The airfoil test was carried out at AoA 0°–25°. The addition of bionic flaps causes a decrease in lift performance at low AoA, but at high AoA, it can increase lift performance on airfoils. In addition, adding a bionic flap on the airfoil can delay the occurrence of a stall. At AoA 10°–13°, the Cd of the three variations of the Reynolds number experiences an increase in performance. Then, from this computational test, the resulting Coefficient moment (Cm) is a pitch down because the torque is below zero.
The Effect of Heat Flux on the Frequency of Bubble Appearance in a Boiling Pool Muhammad Hasan; Supriyadi; Larasati Rizky Putri; Sofia Debi Puspa; Sentot Novianto
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 6 Nomor 1 Tahun 2024
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v6i1.4812

Abstract

This research was conducted to determine the effect of heat flux on the frequency of bubbles appearing in boiling ponds. All fluid movement in pool boiling is caused by natural convection currents. The boiling pool consists of four areas of the pool boiling regime. The division of the four areas is based on the value of the heat flux and the difference between the surface temperature of the heater and the fluid. Using a two-phase heat transfer unit (H654 P.A. Hilton machine), The results showed that the power used greatly influences the boiling process, and besides that, the volume of water used also affects the duration of the boiling process. Based on tests using various power levels of 75 W, 110 W, 168 W, 237.5 W, and 290 W. The occurrence of bubbles will be faster and more numerous when using a lower volume of water and greater power. The heat transfer will be greater if a bubble appears, where latent heat plays a very important role. With mathematical analysis, an increase of 1 bubble per minute occurs for every increase in heat flux of 1.3 W/m2.
Analisis Kualitas Produk Toolbox Menggunakan Metode Seven Tools di PT. KSKB: Product Quality Analysis of Toolbox using Seven Tools Method at PT. KSKB Siti Khalimatul Inayah; Wahyudin Wahyudin; Dene Herwanto
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 5 Nomor 2 Tahun 2023
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v5i2.4877

Abstract

The rapid development of the industrial world has made it a necessity for companies to compete with their competitors. Therefore, companies must control the quality of their products well, one of which is by analyzing defective products. The purpose of this research is to analyze the level of defects in Toolbox products produced by PT KSKB and provide improvement suggestions to reduce the level of defects in PT KSKB Toolbox products. This research uses data on the number of productions and the number of defective products obtained through field observations and interview processes. The method used in this research is the Seven Tools and Kaizen Five-M Checklist method of improvement analysis. Based on the data processing results, there are three types of defects in Toolbox products: burrs, materials with holes, and cutting with no precision. The most frequent type of defect is burrs (an uneven surface of the object due to the working process), with a value of 52.12%. Meanwhile, from the analysis of the Kaizen Five-M Checklist, periodic training (training and OJT) needs to be conducted for employees, routine machine maintenance needs to be carried out, standard operating procedures need to be evaluated, and work areas need to be evaluated to create a safe and comfortable working environment so that the level of product defects can be reduced.

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