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All Journal Journal of Evrimata: Engineering and Physics Evrimata: Journal of Mechanical Engineering
Lazuardi , Lazuardi
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Materials Science & Nanotechnology Mechanical Engineering

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Analysis of Soybean Raw Material Inventory Control Using the Economic Order Quantity (EOQ) Method at the Terang Tofu Factory Hadidjija, Kusno; Fitriana , Dina; Lazuardi , Lazuardi
Journal of Evrímata: Engineering and Physics Vol. 03 No. 01, 2025
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/journalofevrmata.v3i01.68

Abstract

Kebonagung Terang Tofu Factory is one of the famous tofu industries in Pasuruan City. This business produces raw tofu. This research aims to determine the optimal amount of soybean raw material inventory that the Kebonagung Terang Tofu Factory must have, the right time for repurchasing soybean raw materials, the optimal purchase frequency, and the optimal total ordering costs for procuring soybean raw materials at the Terang Tofu Factory. Kebonagung, Pasuruan City. This research is quantitative descriptive, which describes how the company controls raw material inventories through analysis of the data obtained. The analysis methods used include Economic Order Quantity (EOQ) to determine the optimal amount of raw material purchases, Re-Order Point (ROP) to determine the right time for repurchasing raw materials, annual purchase frequency, Safety Stock (SS) to determine the amount safety stock that the company must have, and Total Inventory Cost (TIC) to determine the company's total storage costs. The results of the analysis using the EOQ method show that the Kebonagung Terang Tofu Factory should order 62,740 kg of soybean raw materials in 2024 with an order frequency of 7 times, ROP of 7.956 kg, Safety Stock of 5,874 kg, and total storage costs of Rp. 172.535.
Analysis of the Fin Incline Angle on Aerodynamic Stability of 60 mm Caliber Komando Asap Mortgarena Using Computational Fluid Dynamics Simulation Method Lazuardi , Lazuardi; Maryono, Maryono; Ali, Muhammad; Hadi Susilo, Sugeng
Evrimata: Journal of Mechanical Engineering Vol. 02 No. 01 (2025)
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/evrmata.vi.75

Abstract

This study aims to analyze and simulate the aerodynamic performance of the design of a training weapon grenade using the Computational Fluid Dynamics (CFD) method. CFD simulation allows the analysis of airflow around the grenade to identify the distribution of pressure, drag, and aerodynamic coefficients that play an important role in the efficiency of the grenade flight. The grenade design was tested under various conditions of speed and fin angle to understand their effects on stability and flight efficiency. The results of the simulation show that the variation of the mortar grenade with the fin position parallel to the launch angle has a fluid flow velocity of 84.1 m / s, the mortar grenade with the fin position tilted 2.5 has a fluid flow velocity of 82.7 m / s, and the mortar grenade with the fin position tilted 5 has a fluid flow velocity of 85.8 m / s from the data obtained, the inclination of the fin angle significantly affects the aerodynamic performance of the mortar grenade. This study provides insight that shifting the fin angle on the grenade can increase stability and minimize air resistance during flight.
Co-Authors Fitriana , Dina Hadi Susilo, Sugeng Hadidjija, Kusno Maryono Maryono MUHAMMAD ALI