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All Journal Clean Energy and Smart Technology
Heru Nugroho
Universitas Sains Al-Quran
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Mechanical Engineering

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OPTIMIZATION OF THE STRUCTURAL DESIGN OF THE CHASSIS OF AN AUTOMATED GUIDE VEHICLE USING EXPERIMENTAL AND NUMERICAL METHODS Danu Prasetyo; Sunaryo; Heru Nugroho; Budi Santoso
Clean Energy and Smart Technology Vol. 4 No. 2 (2026): April
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v4i2.204

Abstract

Automated Guided Vehicles (AGVs) are a smart transportation solution that is increasingly being used in industry. The stability and strength of the chassis are critical factors in ensuring AGV performance when carrying loads. This study examines the effects of load variations and material types on the structural performance of AGV chassis through an experimental approach and numerical simulation based on Finite Element Analysis (FEA). The materials used were ASTM A36 and ASTM A500, with loads of 5 kg, 10 kg, and 15 kg. A chassis design with dimensions of 400 × 300 × 80 mm was modeled and analyzed using Computational Fluid Dynamics (CFD) software. Validation was performed through experimental testing using a dial indicator. The results show that at a 15 kg load, ASTM A500 experienced a maximum stress of 60.15 MPa and a deflection of 0.00078 m, lower than ASTM A36, which reached 68.06 MPa and a deflection of 0.00089 m. The difference between the simulation and experimental results was well below 10%. Similarly, regarding the safety factor, ASTM A500 has a value of 2.7145 at maximum load, indicating that this material has a higher safety margin compared to ASTM A36. Based on these results, ASTM A500 is considered more efficient and stable, and is more recommended for AGV chassis applications. This study highlights the importance of integrating numerical and experimental methods to produce optimal structural designs.
THERMAL AND GEOMETRIC CHARACTERIZATION OF A PLASMA TORCH: A STUDY ON THE EFFECT OF ELECTRICAL CURRENT VARIATION Ahmad Fati’in; Sunaryo; Heru Nugroho
Clean Energy and Smart Technology Vol. 5 No. 1 (2026): October
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v5i1.278

Abstract

Plasma gasification is a technology that utilizes high plasma energy to convert organic and inorganic materials into syngas. In hot plasma gasification, a plasma torch heats and decomposes waste into synthetic gas (syngas). This study is expected to improve understanding of efficient and effective plasma gasification operating parameters. The experimental method in this study uses variations of DC electric currents of 30 A, 40 A, 50 A, and 60 A, with three replicates conducted for each experimental condition at a constant operating pressure of 5 bar and a gas flow rate of 21 L/min. The highest arc length and temperature were obtained at 60A with argon as the plasma gas (20 mm, 563.67ºC) and with air as the plasma gas (25 mm, 215ºC). Electric current and plasma gas type can affect the efficiency of gasification using a plasma torch; higher electric current increases arc length and temperature. Air can be used as a plasma gas alternative to other plasma gases. This research can serve as a reference for developing gasification technology using a plasma torch.
Co-Authors Ahmad Fati’in Budi Santoso Danu Prasetyo Sunaryo