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JTTM: Jurnal Terapan Teknik Mesin
Published by Sekolah Tinggi Teknologi Muhammadiyah Cileungsi
ISSN : 27215377     EISSN : 27217825     DOI : https://doi.org/10.37373/msn.v1i2.49
Core Subject : Engineering,
Aerospace Engineering Control & Systems Engineering Engineering Mechanical Engineering
Tujuan dari publikasi jurnal ini adalah untuk menyebarluaskan pemikiran konseptual atau ide dan hasil penelitian bidang teknik mesin yang telah dicapai. Jurnal Terapan Teknik Mesin, terutama berfokus pada masalah utama dalam hal hasil penelitian dan karya ilmiah Layanan Komunitas: Analisa Struktur, Material Teknik, Metalurgi, Kinematika, Dinamika, Termodinamika, Perpindahan Kalor, Teknik Material, Desain dan Manufaktur, Mesin Konversi Energi, Teknik Pendingin/Refrigrasi, Mekanisa Fluida, Mesin Fluida, Aerodinamika, Hidrodinamika, Metrologi, Getaran Mekanik, Otomasi Industri, Mekatronika.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 130 Documents
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Design and fabricating sequential control based automatic sweet potato stick machine Jajang Jaenudin; Tedy Rahman; Edilla; Tianur
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 1 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i1.1483

Abstract

Currently, one of the significant challenges faced by Micro, Small, and Medium Enterprises (MSMEs) in the food processing sector is enhancing both efficiency and effectiveness, particularly in the production of sweet potato sticks, commonly known as "tela-tela." This issue is exacerbated by low productivity rates and the inherent risks associated with manual cutting methods, which can lead to inconsistencies and safety hazards. In this article, we introduce a newly developed automatic machine designed specifically for the efficient production of sweet potato sticks. The development process involved several key stages: system design, mechanical system design, control system design, and the integration of these systems into a cohesive unit. The core components of the control system include a relay, a proximity sensor that acts as a material detector to ensure the sweet potatoes are accurately positioned for cutting, and a 1-phase AC motor equipped with a gear mechanism that drives the sweet potatoes toward a specialized stick-shaped cutter. Experimental results indicate that the machine can achieve a production rate of approximately 23.34 kg per hour with a commendable success rate of about 82.82%. Furthermore, the control system operates flawlessly, maintaining a 100% operational efficiency during testing. These results reflect a significant improvement and position this machine as a competitive alternative compared to existing options in the market, showcasing potential for widespread application in the MSME sector
Design and simulation of a fan-shaped banana cutting machine Dian Panutan; Mustaza Ma'a; Agus Wijianto; Roni Novison
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 1 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i1.1518

Abstract

The fan-shaped banana cutting machine is an innovative solution for banana processing that focuses on mechanical efficiency without using complicated electronic sensors. The machine has four main mechanisms consisting of cutting, pushing, conveyor, and a rotating plate mechanism. The cutting mechanism uses four sharp blades to slice each banana into five fan-shaped pieces, with an average banana weight of 100 grams. The machine can cut up to 30 bananas per minute with a pulley speed of 30 RPM, making it fast and consistent. The pushing and conveyor mechanism work together to move the bananas into position for cutting and transport the slices smoothly. The rotating plate is designed to collect up to five sliced bananas in one cycle. This study explains the design and testing process using motion analysis software to make sure the machine works well. The simulation looked at the movement, power use, and efficiency of each mechanism of the machine. The results showed the total power needed is 4.4 Watts, with 2.4 Watts for cutting mechanism, 0.12 Watts for the pushing mechanism, 1.26 Watts for the conveyor mechanism, and 0.62 Watts for the rotating plate mechanism. A 0.25 HP motor with a speed reducer (1:47 ratio) was chosen to run the machine efficiently.The design focuses on mechanical systems, making it simple and reliable for small-scale production. This machine is a cost-effective and practical option for improving productivity in banana processing. The study provides a strong foundation for future mechanical innovations in food processing technology.
Experimental study of the strength of straw rope as a material for making mattresses Agus Wijianto; Ma'a, Mustaza; M Ghifari Hadi; Roni Novison
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 2 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i2.1376

Abstract

This experimental study thoroughly investigates the impact of soaking straw ropes using three different liquids oil, urea, and salt, on tensile strength and other mechanical properties. The experiment involved meticulously prepared straw rope samples, each with standardized diameter and length, subjected to rigorous testing using a tensile testing machine to gather precise and reliable data. The empirical results revealed significant differences in tensile strength, strain, and elastic modulus among the samples, largely influenced by the type of soaking liquid used during the testing phase. Straw ropes immersed in oil exhibited the highest tensile strength and strain before fracture, followed closely by ropes soaked in urea and salt, while ropes treated with starch showed the least enhancement in mechanical properties. This comprehensive examination provides profound insight into the behavior and characteristics of straw ropes when exposed to various soaking liquids, highlighting the potential modifications in their mechanical performance. The findings contribute valuable knowledge for practical applications in industries such as construction, agriculture, and other sectors where straw ropes are employed as a material requiring specific mechanical attributes. Moreover, this research underscores the importance of selecting appropriate soaking liquids to enhance the mechanical properties of straw ropes, offering a foundation for future studies and practical implementations aimed at optimizing the use of straw ropes in various applications. By elucidating the effects of different soaking treatments, this study not only advances the understanding of straw rope mechanics but also presents actionable information to improve material performance in real-world scenarios.
Effect of corn cob particle size on oil yield and production rate in pyrolysis-based waste-to-energy conversion Simamora, Tigor; Gamayel, Adhes; Zaenudin, Mohamad
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 2 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i2.1678

Abstract

The global energy crisis caused by the limits of oil reserves urging the needs for alternative energy solution, including a pyrolysis-based oil energy. In this study, we investigate the pyrolysis of corn cob biomass with varying particle sizes (3 mesh, 5 mesh, 7 mesh, and 10 mesh) to evaluate its effect on product yields and physical properties. Each experiment was conducted for 90 minutes using 300 grams of feedstock, pre-dried in a microwave oven at 120°C for 2 hours. The results revealed that the bio-oil yield decreased with smaller particle sizes, from 31.52% at 3 mesh to 26.12% at 10 mesh. Conversely, bio-char yield increased from 37.48% to 46.47%, while bio-gas yield decreased from 31.00% to 27.42%. This suggests that excessively small particle sizes reduce bio-oil yield due to uncontrolled reactions despite their higher surface area. The bio-oil density ranged between 1.0235 and 1.0353 g/ml, indicating consistent physical properties across particle sizes. The inlet and outlet temperatures of the reactor (T1 and T2) and condenser (T3 and T4) remained relatively increasingly stable, indicating consistent condensation of pyrolysis gases into liquid bio-oil. This study has successfully provided an insight into the optimization of particle size of the waste processing of corn cob into energy by using the pyrolysis method.
Non-destructive test examination of shielded metal arc welding of SS400 steel plate for pressure vessel application Indra, Ida Bagus; Monanov, Murodih; Zaenudin, Mohamad; Saleh, Yasya Khalif Perdana
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 2 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i2.1685

Abstract

The global energy crisis caused by the limits of oil reserves urges the need for alternative energy solutions, including pyrolysis-based oil energy. In this study, we investigate the pyrolysis of corn cob biomass with varying particle sizes (3 mesh, 5 mesh, 7 mesh, and 10 mesh) to evaluate its effect on product yields and physical properties. Each experiment was conducted for 90 minutes using 300 grams of feedstock, which had been pre-dried in a microwave oven at 120°C for 2 hours. The results revealed that the bio-oil yield decreased with smaller particle sizes, from 31.52% at 3 mesh to 26.12% at 10 mesh. Conversely, bio-char yield increased from 37.48% to 46.47%, while bio-gas yield decreased from 31.00% to 27.42%. This suggests that excessively small particle sizes reduce bio-oil yield due to uncontrolled reactions despite their higher surface area. The bio-oil density ranged between 1.0235 and 1.0353 g/ml, indicating consistent physical properties across particle sizes. The inlet and outlet temperatures of the reactor (T1 and T2) and condenser (T3 and T4) remained relatively stable, indicating consistent condensation of pyrolysis gases into liquid bio-oil. This study has successfully provided insight into the optimization of a particle size of the waste processing of corn cob into energy by using the pyrolysis method
Literature Review: Development of silicone elastomer composite materials for capping machine silicone rollers Umarwan, Arie; Tarigan, Kontan
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 2 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i2.1730

Abstract

Silicone elastomers are widely used in industrial applications due to their mechanical properties and resistance to temperature and chemicals. In the manufacturing sector, particularly in bottle and jar capping machines, silicone is utilized as the base material for rollers operating under high dynamic loads. These conditions often lead to rapid wear and degradation of the silicone rollers during production processes. This study aims to review various literature sources related to the optimal composition and reinforcement methods for silicone elastomers to determine suitable formulations for roller capping applications. The research was conducted through a literature review of scientific journals published within the last ten years, focusing on the influence of filler type, crosslinker type, and composition on mechanical properties such as tensile strength, tear strength, and elongation at break. The review results indicate that a combination of fumed silica (0.2 phr) and clay (1 phr), along with a peroxide-based crosslinker (3 phr), provides the best mechanical performance, achieving a tensile strength of 6.9 MPa, tear strength of 21.5 kN/m, and elongation at break of 315%. In conclusion, the optimal reinforcement of silicone elastomers depends on the type of filler and crosslinking system used, which directly affects the material’s strength, elasticity, and thermal resistance
Evaluation on microstructure and hardness of heat treated AISI 1050 Nur Hasanah; Ali Mokhtar; Dicki Nizar Zulfika
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 1 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i1.1545

Abstract

Due to its chemical composition, carbon steel has limited physical and mechanical properties. This study aims to analyze the effect of the cooling rate given during the heat treatment process on changes in the microstructure and hardness of carbon steel AISI 1050. The heat treatment was carried out at 800oC with 1 hour holding time. In annealing, air inside the furnace used as cooling media so that the cooling rate is very slow. While quenching used water as a cooling medium so that the cooling rate is very fast. From the results of the ASTM E340-95 metallographic test, it was found that there was a change in the microstructure of the steel from the heat treatment of quenching (CSQ) and annealing (CSA) when compared to steel without treatment (CSTP). Rockwell hardness testing according to ASTM E18-15 standards shows the hardness slightly decreased to 41.83 HRC at CSA, while CSQ has the highest hardness due to the phase presents
Optimization of banana midrib horn hydrolysis with cobalt-activated zeolite catalyst assisted by ultrasonic for renewable energy Sri Rahmawati; Sri Wahyuni; M. Rusdi
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 1 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i1.1553

Abstract

This study aims to convert banana midrib into glucose using a Co-ZAA catalyst with ultrasonic assistance. Characterization was conducted through XRD and XRF analyses to determine the crystallinity, structure, and material composition. XRD results showed that the diffractogram patterns of ZAA and Co-ZAA correspond to the characteristics of mordenite zeolite based on JCPDS references. This similarity is indicated by the appearance of main peaks at 2θ, suggesting high crystallinity and optimal structural order for catalytic activity. XRF analysis revealed that Co-ZAA 15% contains silicon (55.2%) and aluminum (13%), with a Si/Al ratio that supports the material's thermal stability and acidity. The cobalt content of 18.9% confirms successful impregnation, making it an active center in catalytic reactions. Other elements, such as iron (6.16%), calcium (2.93%), and potassium (2.59%), originate from natural zeolite or synthesis residues. A qualitative test using Fehling’s reagent confirmed the presence of reducing sugars in the hydrolysis products, indicated by a color change from blue to yellow and the formation of Cu₂O precipitate. These results demonstrate that the Co-ZAA catalyst is effective in hydrolyzing cellulose into simple sugar compounds, with potential applications in biomass-based industries and renewable energy.
Design and construction of a data logger based on a speed sensor for DC motor control Rizki Setiadi; Dony Hidayat Al-Janan; Wirawan Sumbodo; Dimas Eka Firmansyah; Setya Adji Parykesit; Ahmad Azwan; Rian Putra Efendi; Yasir Akmal
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 1 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i1.1555

Abstract

DC motors are actuators that are widely used in many applications, such as robot manipulators, vehicles, and others. DC motor control is generally speed-based. Speed ​​measurement and monitoring in mechanical systems is one of the important aspects. Speed ​​data is not only used to analyze machine performance, but also as a basis for various applications, such as the development of control systems. To improve efficiency, speed measurement for automation technology is very necessary. This study aims to develop a data logger and analyze the response of a DC motor using a speed sensor-based PID control. The method used is experimental. The results of the initial data logger test showed an error rate of 5.63% for wind speed measurements based on speed sensors. The results showed that at a Kp value of 3 approaching stable conditions, it can be used to determine PID control parameters. The error rate of the speed sensor-based data logger with PID control was obtained at 4.67%. PID control is used to control a speed of 200 RPM on a DC motor and the parameters obtained in the PID control system were obtained with a Kp value of 1.8, Ti 1, and Td 0.25
The effect of Na2SiO3 on the burning rate of UPRs 268 BQTN resin composite Mascuk Susilo
JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 1 (2025): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v6i1.1557

Abstract

: Polyester resin is a resin that is easy to manufacture, and resistant to weather changes and corrosion. However, polyester resin has low fire resistance so additional materials are needed to improve these deficiencies. The purpose of this study was to improve the fire resistance of polyester composites using a matrix (resin 268 BQTN) with the addition of sodium silicate (Na2SiO3) filler. Specimens were made by the hand layup method while the filler was varied based on the weight percentage of the polymer composite itself. Mixing the resin with Na2SiO3 by stirring using a mixer at a speed of 3000rpm for 5 minutes, then leave for 5 minutes to reduce air bubbles. The fire resistance test followed ASTM D 635. The results of the fire test showed an increase in ignition time which increased from 4.83 seconds (without Na2SiO3) to 9.81 seconds (2.5% Na2SiO3); 13.94 seconds (7.5% Na2SiO3) and 17.34 seconds (7.5% Na2SiO3). The ignition time indicates the increase in combustion time which also has an increasing trend to 159.6 second; 180 seconds; 199.8 seconds and 240 seconds. In contrast to the ignition time and combustion time, the combustion rate has the opposite trend, decreasing with increasing sodium silicate (Na2SiO3), which is 2.128 mm/second; 2.4 mm/second; 2.66 mm/second, and 3.2 mm/second. The decrease in combustion rate show that silicate (Na2SiO3) can increase the composite's fire resistance

Page 12 of 13 | Total Record : 130

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