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Journal of Applied Mechanical Engineering Innovation
Published by Universitas Negeri Yogyakarta
ISSN : -     EISSN : 3109452X     DOI : -
Core Subject :
Journal of Applied Mechanical Engineering Innovation (JAMEI) is a premier platform dedicated to the dissemination of innovative research, technological advancements, and practical applications within the field of mechanical engineering. We aim to foster a global community of engineers, researchers, and practitioners by providing a comprehensive repository of high-quality articles that address both theoretical and experimental aspects of mechanical systems. Focus and Scope : Our journal covers a wide range of topics, including but not limited to: Thermodynamics and Fluid Mechanics Structural Analysis and Materials Science Robotics and Automation Computational Fluid Dynamics (CFD) Design and Manufacturing Processes Mechatronics and Control Systems Renewable Energy Systems We invite original research papers, review articles, and case studies that contribute to the advancement of mechanical engineering practices. Our rigorous peer-review process ensures that published work meets the highest standards of scientific excellence.
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Articles 6 Documents
 1 
Search results for , issue "Volume 01, No. 02 October 2025" : 6 Documents clear
Optimization of The E-Inobus Battery Pack Cooling System Design Using The Computational Fluid Dynamic Method To Overcome Condensation Rizky Arya Saputra; Thomas Sukardi; Fredy Surahmanto
Journal of Applied Mechanical Engineering Innovation Volume 01, No. 02 October 2025
Publisher : Program Studi Sarjana Terapan Teknik Mesin, Fakultas Vokasi, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamei.v1i2.3002

Abstract

The use of battery packs as a source of electrical energy on E-Inobus requires a cooling system, the goal is to maintain battery pack performance in optimal conditions. In its application, there are problems due to the use of a cooling system which causes an increase in air humidity inside the battery box resulting in condensation. Therefore, this study aims to obtain a design for optimizing the cooling system battery pack. This study uses the R&D method which refers to the 4D model. The subject of this research is the E-Inobus cooling system battery pack. The object of research is the development of a cooling system battery pack design to prevent condensation. Data collection was carried out to obtain data from testing the cooling system battery pack design using the Computational Fluid Dynamic (CFD) testing method to be used as input parameters in testing the cooling system battery pack optimization design. The results of the battery pack testing and the optimization of the battery pack cooling system design will later be used as control set points in the reconditioned box design. The results of this study are in the form of a reconditioned box design that has a control system. The control system is used to control air velocity and pressure, the purpose of which is to prevent condensation and to maintain fluid temperature and pressure in a balanced condition
Effectiveness Analysis of a Semi-Automatic Banana Chips Slicing Machine Richa Lailil Ulya; Sutopo
Journal of Applied Mechanical Engineering Innovation Volume 01, No. 02 October 2025
Publisher : Program Studi Sarjana Terapan Teknik Mesin, Fakultas Vokasi, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamei.v1i2.3009

Abstract

Bananas are one of the main plantation commodities in Pagerharjo Village, Samigaluh. The local women's farmer group (KWT) processes bananas into chips, but the manual production process creates obstacles because the slices are not uniform. This study aimed to determine the working mechanism of a semi-automatic banana chips slicing machine, identify the most effective test result, and compare production capacity between machine-assisted slicing and manual slicing. The research used a research and development (R&D) method implemented through observation, interviews, problem formulation, product needs analysis, machine performance testing, data collection, and data analysis. Experimental testing was conducted in three blade-gap variations to obtain the most effective slicing result. The machine used a 1/4 hp electric motor with a nominal speed of 1400 rpm. The most effective result was obtained at a 4 mm blade gap, which produced an average slice thickness of 3 mm, 747 g of slices meeting the standard shape from 1 kg of bananas, and a slicing capacity of 27 kg/h.
Lean Manufacturing and Manufacturing Cycle Effectiveness Analysis of the Fabrication Process for the PT Pou Yuen Workshop Construction Zahid Karim Hanifan; Thomas Sukardi
Journal of Applied Mechanical Engineering Innovation Volume 01, No. 02 October 2025
Publisher : Program Studi Sarjana Terapan Teknik Mesin, Fakultas Vokasi, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamei.v1i2.3010

Abstract

This study aims to increase production effectiveness in the fabrication process for the PT Pou Yuen Indonesia workshop construction by applying Lean Manufacturing and Manufacturing Cycle Effectiveness (MCE). The research used a quantitative descriptive method by taking representative samples from the overall production process in the cutting, setting, and submerged arc welding (SAW) lines. Data were collected through interviews, observation, documentation, and measurements of process time and transfer distance. The results show that the most effective cutting method is the method used by MSS, which applies a double-nozzle cutting process. In the setting process, the most effective methods are those used by MKR and MSS because they require fewer workers and have shorter process times than SST. In the welding process, the most effective method is the method used by MKR because flux is supplied during the welding process. Several types of waste were identified, including waiting time, transportation waste, inventory waste, motion waste, and processing waste. Applying the recommended process methods can reduce the total production process time by 9,011.99 seconds for one WF beam and reduce transfer distance by 2,070 m.
The Effect of Temperature and Pressure on Filling Time in the Injection Process of Shop Hanger Products Thedy Kristanto; Paryanto; Heri Wibowo
Journal of Applied Mechanical Engineering Innovation Volume 01, No. 02 October 2025
Publisher : Program Studi Sarjana Terapan Teknik Mesin, Fakultas Vokasi, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamei.v1i2.3011

Abstract

This study investigated the effect of melt temperature and injection pressure on filling time in the injection molding process for shop hanger products. The research used an experimental simulation method with Autodesk Moldflow Adviser 2023. The melt temperature was varied at 180, 190, 200, 210, and 220 °C, while injection pressure was varied at 20, 30, 40, and 50 MPa. Runner diameters of 2, 4, and 6 mm were also evaluated to determine the most suitable flow channel for the mold design. The results show that a 4 mm runner produced the shortest filling time among the runner variations. Increasing temperature and pressure tended to reduce filling time within the tested parameter range. The shortest filling time was obtained at a melt temperature of 220 °C and an injection pressure of 40 MPa with a 4 mm runner. Several defects, including short shot, warpage, weld lines, sink marks, and air traps, were detected during the simulation, but the defects were not significant under the optimal parameters. The mold was designed with a 330 × 350 mm mold base and a required clamping force of 470 kN. The selected injection machine available at CV. Mulus Teknik, a 90-ton UN90SKII machine with a clamping force of 900 kN, was suitable for production.
Formability and Mechanical Properties of Polyvinyl Chloride (PVC) in the Thermoforming Process Rahmadi Nurapela Nugraha; Arianto Leman Soemowidagdo; Prihatno Kusdiarto
Journal of Applied Mechanical Engineering Innovation Volume 01, No. 02 October 2025
Publisher : Program Studi Sarjana Terapan Teknik Mesin, Fakultas Vokasi, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamei.v1i2.3039

Abstract

This study investigated the effects of polyvinyl chloride (PVC) sheet thickness and heating temperature on formability, tensile properties, and thickness shrinkage in the thermoforming process. PVC sheets with thicknesses of 0.15, 0.20, and 0.25 mm were processed at 140, 160, and 170 °C. The experiment consisted of nine treatment combinations, with three repetitions for each combination, giving a total of 27 specimens. Data were obtained by observing the formability of the thermoformed products, measuring tensile properties using a universal testing machine, and measuring thickness changes using a digital microscope and a thickness gauge. The results show that both thickness and temperature affect the thermoformability and mechanical performance of PVC sheets. The highest tensile strength after thermoforming was obtained at a thickness of 0.25 mm and a temperature of 140 °C, with a stress value of 42.7 MPa or a maximum load of 4.30 kgf. Increasing the forming temperature reduced tensile strength, particularly for thinner materials. The greatest shrinkage was 53.3%, observed at a thickness of 0.15 mm and a temperature of 170 °C. Overall, thinner PVC sheets formed more easily at higher temperatures, but they also experienced greater shrinkage and lower tensile strength
The Influence of Matrix Shape and Resin Composition on Tensile and Bending Strength Zufar Jamaluddin; Yatin Ngadiyono; Arif Marwanto
Journal of Applied Mechanical Engineering Innovation Volume 01, No. 02 October 2025
Publisher : Program Studi Sarjana Terapan Teknik Mesin, Fakultas Vokasi, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jamei.v1i2.3040

Abstract

This study aims to determine the differences in tensile and bending strength caused by the use of 45° and 0° fiber orientations, to identify the ideal resin and catalyst composition, and to explain the mismatch between direct testing and ANSYS simulation results. The research used an experimental method. The specimen manufacturing process included preparation of tools and materials, mold preparation, resin-catalyst mixing, fiber preparation, vacuum infusion, cutting, and sanding. The specimens were manufactured using hand lay-up and vacuum infusion by arranging fibers on the mold and applying vacuum pressure at the end of the fabrication process. The results show that carbon composite laminates with 0° fiber orientation provide greater tensile and bending strength than those with 45° fiber orientation. The carbon composite had the highest tensile load when the resin and catalyst composition was 4:1, while the highest bending load was obtained for the 3:1 resin and catalyst composition. The difference between simulation and direct testing was caused by the assumption in ANSYS that the fiber-matrix bonding was perfect, while in actual specimens the resin distribution and bonding varied due to the vacuum infusion process.

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