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Majalah Teknik Mesin
Published by Universitas Muhammadiyah Surakarta
ISSN : 14114348     EISSN : 25414577     DOI : -
Core Subject : Science, Engineering,
Automotive Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology
Media Mesin: Majalah Teknik Mesin is published by Mechanical Engineering Department, Faculty of Engineering, Universitas Muhammadiyah Surakarta, Indonesia. Media Mesin: Majalah Teknik Mesin is an open-access peer-reviewed journal that mediates the dissemination of academicians, researchers, and practitioners in mechanical engineering. Media Mesin: Majalah Teknik Mesin accepts submissions from all over the world, especially from Indonesia. Media Mesin: Majalah Teknik Mesin aims to provide a forum for national and international academicians, researchers, and practitioners on mechanical engineering to publish the original articles. All accepted articles will be published and will be freely available to all readers with worldwide visibility and coverage. The scope of Media Mesin: Majalah Teknik Mesin is specific topics issues in mechanical engineering such as: Energy Conversion and Management Thermofluids Material and Manufacturing, and Design and Structure All articles submitted to this journal can be written in Bahasa Indonesia and English. The journals will be published two times a year namely in January and July.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 5 Documents
 1 
Search results for , issue "Vol. 26 No. 2 (2025)" : 5 Documents clear
OPTIMIZING PROCESS PARAMETERS FOR FILAMENT 3D PRINTING USING THERMOPLASTIC POLYURETHANE (TPU) WITH RESPONSE SURFACE METHODOLOGY (RSM) Salbiah, Umi Khulsum; Shieddique, Apang Djafar; Rohman, Rohman
Media Mesin: Majalah Teknik Mesin Vol. 26 No. 2 (2025)
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

3D Printing utilizes the fabrication process of Fused Deposition Modeling (FDM), which is an Additive Manufacturing (AM) technology that builds objects layer by layer (Pristiansyah et al., 2019). The use of 3D Printing technology has rapidly increased in recent years, significantly contributing to the quality and cost efficiency of prototype production. TPU (Thermoplastic Polyurethane) filament is often used because it produces heavier, harder, and more durable products. Optimizing the 3D printing process is crucial to achieving optimal results, one of which is through the Response Surface Methodology (RSM) method. In this study, RSM was used with 2 factors to find the best response in tensile strength and material hardness of TPU. The experimental results showed that the optimal parameters for tensile strength are a temperature of around 190°C and a print speed of 45mm/m, resulting in a tensile strength of 2.34 kgf/mm². Meanwhile, for maximum hardness, the optimal parameters are a temperature of 214.15°C and a print speed of 45mm/m, with a hardness value of 72.67 HRR. Thus, the RSM method can be an effective approach in improving the 3D Printing results on TPU material.
NUMERICAL AND ANALYTICAL ANALYSIS OF THE SHAFT DESIGN FOR A ROTATING DRUM BIOREACTOR USING STAINLESS STEEL 304 MATERIAL Putero, Gladion Alim; Affandy, Rahmat; Fauzi, Mochamad; Zain, Fikri Isya; Prabawanto, Moch. Nur Irsyad; Faizin, Ahmad Khairul
Media Mesin: Majalah Teknik Mesin Vol. 26 No. 2 (2025)
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

The safety factor and Von Mises stress need to be analyzed so that the components remain safe against combined stress and the risk of failure due to dynamic loads and unexpected conditions. This study aims to analyze the safety factor and von mises of the shaft design on a rotating drum bioreactor using 304 stainless steel material. This machine is designed to support the shrimp paste fermentation process using the Solid State Fermentation (SSF) method. The analysis process is carried out through simulation using the finite element method (FEM) to evaluate the stress distribution and safety factor value on the shaft. The simulation results show that the von mises value or maximum stress on the shaft is 10.98 N/mm², still below the yield strength of 304 stainless steel material of 205 N/mm². The minimum safety factor obtained from the analysis is 19, indicating that this design is safe to withstand loads during the operation process. In addition, the results of the numerical analysis using manual calculations obtained a maximum shaft stress value of 10.95 N/mm² with a minimum safety factor value of 18.7. Through a comparison of the results of the analytical simulation analysis and manual numerical calculations, a machine design with a level of reliability and structural safety that is considered safe, as well as minimizing the risk of mechanical failure.  
DEVELOPMENT AND ANALYSIS OF A 7040 PROPELLER AIRSCREW TEST BENCH USING EXPERIMENTATION AND CFD Sarjito, Sarjito; Prabowo, Anggit Bayu; Wijianto, Wijianto; Junaidin, Buyung
Media Mesin: Majalah Teknik Mesin Vol. 26 No. 2 (2025)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v26i2.12059

Abstract

This study presents a performance evaluation of a 7×4 propeller using both experimental and computational approaches. A test bench was developed to measure static thrust and power consumption across various rotational speeds (RPM), while Computational Fluid Dynamics (CFD) simulations were performed using ANSYS CFX to analyze the aerodynamic behavior and thrust generation under identical conditions. The experimental setup employed an Arduino-based system integrated with sensors for thrust, voltage, current, and RPM measurements. Thrust values increased proportionally with RPM, reaching a maximum of 2.7468 N at 9000 RPM. In comparison, the CFD simulation predicted a higher thrust of 3.6358 N at the same speed. Although some deviations were observed—particularly at higher RPMs—the overall trends between experimental and CFD results were consistent, indicating that both methods effectively capture the propeller’s performance characteristics. The findings confirm that the test bench provides reliable measurements under static conditions and that CFD can serve as a predictive tool for propeller performance. Further improvements through dynamic testing and simulation refinement are recommended to enhance accuracy and represent real-world flight conditions.
DESIGN AND SAFETY FACTOR SIMULATION OF AN AUTOMATED FEEDER FOR BLANKING MACHINES Wijayanto, Hendi Lilih; Zulfianti; Yusdianto; S, Hairun Apriadi Ramadhan; Usman
Media Mesin: Majalah Teknik Mesin Vol. 26 No. 2 (2025)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v26i2.6977

Abstract

The displacement of the stainless-steel plate to the printing work area is still managed manually by theoperator. Additionally, there is no clear benchmark to determine whether the plate is in the correct position andaligned according to the printed pattern. Thus, the print results are frequently less than perfect and require a longprocess. To address these conditions, an additional feeder is required with an automatic system that can operatein conjunction with the blanking machine, simplifying the operator's work and enhancing the blanking processefficiency. The objectives of this research are to determine the design of the feeder machine design by the needsand specifications of the machine, to discover the value of the safety factor of the Feeder machine design, and toreveal the movement system of the Feeder machine design using SolidWork 2019. This final project was carriedout in June 2023 at Politeknik Industri Logam Morowali (PILM) in Labota Village, Bahodopi District, MorowaliRegency, Central Sulawesi Province. The results show that: Researchers can make a design with the provisionsof a length of 550 mm and a width of 250 mm, while the known safety factor value for both areas is declared safesince it has Factor of Safety (FOS) value of 1 and the design movement system displayed on the animation systemin SolidWork 2019 software.
DESIGN AND CFD ANALYSIS OF 1 KW PICO HYDROPOWER SIMULATOR WITH CENTRIFUGAL WATER PUMP AND FRANCIS TURBINE Sutisna, Nanang Ali; Aditama, Fauzan Yasa
Media Mesin: Majalah Teknik Mesin Vol. 26 No. 2 (2025)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v26i2.10390

Abstract

Simulation is essential for a design study. This article illustrates the result of a research aimed to design andbuild a Pico Hydro Generator simulation system using a water pump as a source of water flow. Pico HydroGenerator is a small-scale power generation technology that utilizes water energy as a renewable energy resource.Through this simulation system, the design and testing of the Pico Hydropower simulator design can be carriedout to determine the efficiency value of the design. The planning process begins by determining the specificationsof the water turbine to be used, including water discharge, headwater, and the required capacity. Based on thesedata, it is possible to select the type of water pump that is suitable for the needs of the turbine. Then the design ofPico Hydropower components such as turbines, generators, water tanks, water channels, and system panels isdesigned. The design process uses CAD (Computer Aided Design) software to design parts and assemblies on thesimulator. Then the design performance will be analyzed using Computational Fluid Dynamic (CFD) software.The final result of this study is a Pico Hydropower simulator design that has been optimized and can be simulatedby using a water pump as a flow source. This simulation system can allow research and development in the formof learning tools for students to understand how Pico Hydro power plants work and how to calculate theirefficiency.

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