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Published by Universitas Merdeka Malang
ISSN : 02163233     EISSN : 25802283     DOI : -
Core Subject : Engineering,
Automotive Engineering Control & Systems Engineering
Jurnal TRANSMISI dipublikasikan oleh Jurusan Teknik Mesin Universitas Merdeka Malang sebagai media diseminasi hasil penelitian dan karya ilmiah baik penelitian dasar maupun terapan di bidang teknik mesin. Berkala ilmiah ini memuat naskah dengan bidang kompetensi konversi energi, material (metalurgi), produksi dan manufaktur baik merupakan penelitian dasar ataupun rekayasa alat terapan.
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Articles 6 Documents
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Search results for , issue "Vol. 21 No. 2 (2025): September (2025)" : 6 Documents clear
Analisis Kelayakan Pompa Elektrik Pemadam Kebakaran Klinik Mata PT X Fasli; Hariyanto, Rudi; Widiharsa, Fransiskus Asisi; Darto; Kurniawan, Pradhana
TRANSMISI Vol. 21 No. 2 (2025): September (2025)
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v21i2.15653

Abstract

In a pumping system, one important parameter that needs to be analyzed is the hydraulic power needed to move the fluid. This hydraulic power reflects how much energy is needed to move the fluid through the piping system, and this is highly dependent on factors such as flow rate, head, and the characteristics of the pump itself. The purpose of this Pkn is to determine the hydraulic power of the pump. In pumping, it is necessary to pay attention to several factors so that the pump can work optimally, such as the height of the water to be sucked and the height of the building to be distributed and the design of the pipes as water channels. The method used to determine the hydraulic power of the pump is through data collection. From the results of data processing, we can find out the different flow rate values ​​based on the discharge and pipe diameter, flow losses obtained at pipe joints such as major losses and minor losses, the power required to drive the pump is 55 KW and the hydraulic power is 45.53840 KW, and the pump efficiency is 82.79%.
Analisa Pengaruh Kekakuan Secondary Spring Terhadap Performa Sepeda Motor Scoopy Hidayatulloh et al., Muchammad Lutfi
TRANSMISI Vol. 21 No. 2 (2025): September (2025)
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v21i2.16377

Abstract

Continuously Variable Transmission (CVT) transmission system on automatic motorcycles has an important role in efficiently distributing engine power to the wheels. One of the main components in the CVT system is the secondary spring, which plays a role in regulating the back pressure of the secondary pulley to maintain belt tension in the power transfer process, the level of secondary spring stiffness can affect the characteristics of power transfer. This study aims to analyze the effect of the stiffness of the Dytona brand secondary spring with three variations of stiffness (1000 RPM, 1500 RPM, 2000 RPM) on the performance of the Honda Scoopy motorcycle. The method used is an experiment with a quantitative approach, where each variation of the secondary spring is tested using a BRT 50 LA dyno test machine to obtain data such as power, torque, acceleration and top speed. The test results show that the secondary spring with lower stiffness provides a faster initial response and is able to maintain the transmission ratio longer at high speeds. Meanwhile, the secondary spring with higher stiffness provides a greater power boost, but reduces top speed because the transmission ratio decreases faster. It can be concluded that the selection of secondary spring stiffness must be adjusted to the desired performance characteristics, whether to achieve maximum power or optimize acceleration efficiency and high speed. This finding can be used as a reference in modifying the CVT system to improve motorcycle performance, especially the Honda Scoopy
Analisa Kekuatan Pisau Cane Cutter PG Krebet Baru I Menggunakan Software ANSYS Workbench 2025 R1 Fadilillah et al., Rahmat Fahil
TRANSMISI Vol. 21 No. 2 (2025): September (2025)
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v21i2.16379

Abstract

The blade on the cane cutter machine is the part most susceptible to damage because it operates under dynamic conditions with high impact loads, continuous friction, and rapid rotation. Blade damage on the cane cutter at PG Krebet Baru I is a recurring problem, with replacement frequency reaching six times per milling season. The topic of this research is to analyze the strength of the cane cutter blade at PG Krebet Baru I using ANSYS Workbench 2025 R1 software. The blade strength analysis includes stress distribution, deformation, and safety factor for each load variable using ANSYS Workbench 2025 R1. The limitations of this study include: simulations conducted only on the cane cutter blade under static load conditions, and data used as the basis for the simulation include blade dimensions, material type, and rotation speed of the cane cutter machine at PG Krebet Baru I. The results of the calculations obtained the loads applied for the simulation, namely a minimum load of 5,707 N, an average load of 8,561 N, and a maximum load of 11,415 N. The simulation results of the cane cutter blade showed that at a minimum load of 5,707 N, the Maximum Total Deformation was 0.048 mm, the Maximum (von-Mises) Stress was 22.3 MPa, the Maximum Shear Stress was 12.9 MPa, and the Safety Factor was 11.2. At the average load of 8,561 N, the Maximum Total Deformation was 0.073 mm, the Maximum (von-Mises) Stress was 33.4 MPa, the Maximum Shear Stress was 19.3 MPa, and the Safety Factor was 7.4. And at the maximum load of 11,415 N, the Maximum Total Deformation was 0.097 mm, the Maximum (von-Mises) Stress was 44.6 MPa, the Maximum Shear Stress was 25.7 MPa, and the Safety Factor was 5.6
Tensile Strength Analysis of Resistance Spot Welding Azi et al., Sirilus Junidin Eoh
TRANSMISI Vol. 21 No. 2 (2025): September (2025)
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Spot welding is an electrical resistance welding method in which two or more metal sheets are clamped between two electrodes, then a low-voltage electric current is flowed between the electrodes, the metal in contact becomes hot and the temperature rises to the welding temperature, as soon as the welding temperature is reached , the pressure between the electrodes forces the metals together and a welded joint is formed. Tensile testing is to determine the strength of the point weld joint, also to get the stress and strain, in this study using a galvanized mild steel plate with a thickness of 0.2 mm with time variations of 4 seconds, 6 seconds, 8 seconds. The results obtained after a tensile test for 4 seconds obtained a maximum load of 23.5 kg/, and the lowest was 15.7 kg, in 6 seconds the maximum load was 78.8 kg, the lowest was 47.2 kg, in 8 seconds the load was obtained. maximum 87.1 kg, the lowest 43.3 kg. The highest stress from the three times is at 8 seconds at 7.705 kg/mm2, the lowest at 4 seconds is at 1.388 kg/mm2, while the highest strain from the three times is at 8 seconds at 2.434, the lowest is at 4 seconds at 0.034. Keywords: Spot Welding, Time Variation, Tensile Strength  
Pengaruh Variasi Defleksi Lateral Pada Baja Hollow Profil Persegi Terhadap Sifat Keausan, Kekerasan, Dan Struktur Mikro Hasil Proses Bending Aprillio et al., Deary Nanda
TRANSMISI Vol. 21 No. 2 (2025): September (2025)
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v21i2.16381

Abstract

ABSTRACT The bending process is a metal forming process where a metal will be bent with a bending machine and will form like the desired metal (curved). The bending process to make the product requires an external force (deflection). In this final project research there is a goal that is to be able to know the grain size on the specimen, the value of hardness after bending, the value of wear resistance after bending. In the manufacture of specimens using a square hollow steel profile with dimensions of 30 mm x 30 mm with a thickness of 1 mm. the specimen with the highest deflection got the highest hardness of 73.2 HRB resulting in smaller steel grains. At a deflection of 6mm it can be seen that the largest average grain size at the bottom is 0.635 mm2, at a deflection of 12 mm the largest grain size value is located at the bottom of 0.0449 mm2, and at a deflection of 18 mm the largest grain size is at the bottom. 0.0378 mm2. then the smallest hardness of 40.9 HRB causes the steel grains to get bigger. In the wear test, the harder the object being tested, the stronger the wear resistance.
Performance Characteristics Of Brushless Direct Current (BLDC) Motor 350W 36V As The Driving Motor Of An Electric Bicycle Setyawan et al., Choirul Adi
TRANSMISI Vol. 21 No. 2 (2025): September (2025)
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v21i2.16390

Abstract

This research aims to determine the performance characteristics of a BLDC motor 350W 36V as the driving motor of an electric bicycle at varying speeds of 10 km/hour, 20 km/hour and 30 km/hour. The distance traveled in this test is 1 km on flat road conditions with a load of 1 (one) rider of 75 kg. The test was carried out by recording the load value in the form of BLDC motor power and the duration of use of the battery when the electric bicycle was ridden. The test results show that at a speed of 10 km/hour an average motor load was recorded at 61.65 watts, at a speed of 20 km/hour an average load was recorded at 154.09 watts and at a speed of 30 km/hour an average load was recorded at 315.65 watts. The duration of use of the battery is that at a constant speed of 10 km/hour the battery can last for 4,2 hours, at a constant speed of 20 km/hour the battery can last for 1.68 hours and at a constant speed of 30 km/hour the battery can last for 0.82 hour

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