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Journal of Applied Mechanical Engineering Innovation
Published by Universitas Negeri Yogyakarta
ISSN : -     EISSN : 3109452X     DOI : -
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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 18 Documents
 1   2 
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.
Design And Construction Of A Simple Incinerator For Household Waste Combustion Syafrizal Fachri Aziz; Arif Marwanto
Journal of Applied Mechanical Engineering Innovation Volume 2, No. 01 April 2026
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.v2i1.844

Abstract

This study aimed to design and construct a simple incinerator that produces minimal smoke, is easy to operate, and performs effectively for household waste combustion. The research used a research and development (R&D) method with the ADDIE development model, consisting of Analysis, Design, Development, Implementation, and Evaluation. At the design stage, five main components were produced: a combustion furnace with dimensions of 360 mm × 590 mm, a frame of 360 mm × 360 mm × 500 mm, a boiler, a fuel container, and a furnace cover. The development stage included fabrication, assembly, and finishing, while the implementation stage involved performance testing using cardboard waste and dry teak leaves, each tested twice with a mass of 2 kg and used oil as fuel. The results showed that the incinerator burned cardboard waste at a combustion rate of 9.545 kg/hour and dry teak leaves at 10.67 kg/hour. The combustion process reached a reported summary temperature of 1075°C. The waste reduction effectiveness was 89.5% for cardboard waste and 91.5% for teak leaves, with an average effectiveness of 90.5%. These results indicate that the device can be used as a controlled small-scale combustion system for household waste management.
Evaluation of Scrab Conveyor Machine Performance at Pt Dharma Polimetal Tbk. Hyundai Plant Using The Six Sigma (Dmaic) Method Avito Riza Yusuf; Ahmad Fikrie
Journal of Applied Mechanical Engineering Innovation Volume 2, No. 01 April 2026
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.v2i1.2027

Abstract

This study aims to evaluate the performance of scrap conveyor machine in Stamping production line at PT Dharma Polimetal Tbk . Hyundai Plants. The main problem raised in this research is the high level of downtime on the conveyor machine, which negatively impacts the effectiveness of the production process and contributes to an increase in operational costs. Therefore, this research was conducted to identify the root causes of the problem and formulate applicable and sustainable improvement solutions. The method used in this research is the Six Sigma approach with DMAIC (Define, Measure, Analyze , Improve, Control) stages. Analysis is done by utilizing downtime data using Pareto Diagram and Fishbone tools to identify problem priorities. The Improve stage is carried out with corrective actions in the form of hopper redesign, installation of conveyor covers, and improvement of system wiring and automatic sensors to improve the reliability of the conveyor system. The results showed that corrective actions were able to significantly reduce the duration of downtime, especially in the bent chain plate problem, from 310 minutes to only 50 minutes in August 2024. This finding proves that the application of Six Sigma methods is effective in improving the operational efficiency and performance of scrap conveyor machines. Thus, this data-driven improvement strategy makes a real contribution to increasing the company's productivity and competitiveness.
The Effect of Implementing SI PETIR (An Innovative Boiler Lance Tube Straightening Solution) on Sootblower Maintenance Efficiency at the 660 MW Adipala Coal-Fired Power Plant in Central Java Dea Amanda Kahendrastuti; Prihatno Kusdiyarto
Journal of Applied Mechanical Engineering Innovation Volume 2, No. 01 April 2026
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.v2i1.3269

Abstract

This study aims to analyze the impact of the implementation of the SI PETIR system on the efficiency of sootblower maintenance at the 660 MW Adipala Coal-Fired Power Plant in Central Java through improvements in time efficiency, reductions in maintenance costs, and enhancements in operational reliability. The methodology employed is a descriptive-comparative approach using a case study design. Data were obtained through field observations, documentation, and interviews with maintenance technicians, then analyzed by comparing conditions before and after the implementation of the SI PETIR system based on MTTR, maintenance costs, and operational reliability indicators. The research results show that SI PETIR was able to reduce MTTR from 7,200 minutes to 720 minutes, cut maintenance costs from Rp 95,070,000.00 to Rp 9,970,000.00, and improve operational reliability from 83.33% to 96.67%, thereby proving to be effective and economical in improving sootblower maintenance performance.
The Development And Design Of Rear Upright For The Garuda UNY UG-23 Urban Car Muhammad Tafif Fadhlurrahman; Febrianto Amri Ristadi
Journal of Applied Mechanical Engineering Innovation Volume 2, No. 01 April 2026
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.v2i1.3270

Abstract

The development and design of the rear upright for the Urban Car Garuda UNY UG-23 was carried out to improve the previous design that was no longer compatible due to changes in the car frame. This study aimed to find strong and lightweight materials for the rear upright, and to analyze the structure to get the best design with better performance and lower weight. The development method used an engineering approach based on Computer Aided Engineering (CAE). The design process started by using software for parametric, solid modelling, and numerical analysis with the Finite Element Analysis (FEA) method. FEA was used to measure stress, deformation, and safety factors of the rear upright. The simulation also considered different forces, such as the weight on the upright and the force from the brake calliper. The Ashby Method was used to choose materials based on their properties and the design needs. The analysis results showed that the rear upright made from 7075-T6 aluminum met the strength and efficiency requirements. The analysis showed that the factor of safety was at least 15.62 with a maximum stress of 32.34 MPa. The maximum displacement was 0.08 mm and strain was 0.0 mm. The optimization process reduced the mass from 553.64 grams to 322.73 grams. In the best condition (wheel system), the weight was reduced by 41.7% or about 231.64 grams without significantly reducing the strength.
Optimization of NFRP Turbine Blade Material on The Harper Malioboro Hetel Ballroom Ventilator Through Design Analysis Ahmad Satria Wibowo; Ardani Ahsanul Fakhri
Journal of Applied Mechanical Engineering Innovation Volume 2, No. 01 April 2026
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.v2i1.3271

Abstract

This study aims to evaluate the performance of natural fiber-reinforced polymer (NFRP) composite material as an alternative to aluminum AA1100 for turbine ventilator blades, considering aluminum's limitations in sustainability. Numerical simulations were conducted using ANSYS Workbench 2025 R1, applying variations in fiber reinforcement combinations (Low, Mid, High) and fiber orientations (Bidirectional, Unidirectional, Random). The turbine blade design was visualized as a 3D model using Autodesk Inventor 2024. Analysis parameters included maximum stress (von Mises), total deformation, fatigue life, and equivalent alternating stress. Results showed that the Mid–Random configuration yielded the most optimal performance, with a maximum stress of 22.009 MPa, total deformation of 6.7009 mm, fatigue life reaching 5.3698 × 10⁵ cycles, and an equivalent alternating stress of 9.0395 × 10³¹ Pa. This configuration also outperformed aluminum in terms of fatigue resistance. Based on these findings, the Mid–Random NFRP material is recommended as an environmentally friendly alternative for turbine ventilator blade applications.
Analysis of Tensile and Bend Strength with Current and Voltage Variations in GMAW Welded Joints of SS400 Steel for Train Underframes Muhammad Fahrurozy Pradaya; Heri Wibowo
Journal of Applied Mechanical Engineering Innovation Volume 2, No. 01 April 2026
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.v2i1.3348

Abstract

This study investigates the effect of welding current and voltage variations on the tensile and bend strength of Gas Metal Arc Welding (GMAW) joints in SS400 steel for train underframe applications. SS400 steel plates with a thickness of 4.5 mm were welded using a single-V groove with a 60° angle. The welding parameters consisted of two current levels, 100 A and 120 A, and three voltage levels, 20 V, 23 V, and 26 V. The research used a quantitative experimental method. The tensile test data were analyzed by calculating the average maximum tensile strength and elongation, while the bend test results were evaluated based on visual defects on the convex surface of the specimens. The results show that the 100 A-23 V parameter produced the highest average maximum tensile strength of approximately 458.3 MPa with an average elongation of 13.9%. However, the bend test results indicated that the safest and most acceptable parameter was 120 A with moderate voltage, particularly 23 V, because the specimens showed no visible defects after testing. Therefore, the 120 A-23 V welding parameter is considered the most optimal combination for balancing tensile strength and bend toughness in GMAW welded joints of SS400 steel for train underframe structures

Page 2 of 2 | Total Record : 18

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