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All Journal Gorontalo Journal of Infrastructure and Science Engineering Abdi Masya Biomedical and Mechanical Engineering Journal Surya Teknika: Jurnal Ilmiah Teknik Mesin Cahaya bagaskara
T Towijaya
Program Studi Teknik Mesin Universitas Muhammadiyah Pekajangan Pekalongan
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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Journal : Gorontalo Journal of Infrastructure and Science Engineering

 1 
STUDI KEMIRINGAN DRIVE PULLEY TERHADAP PERUBAHAN DAYA DAN TORSI PADA SEPEDA MOTOR TRANSMISI OTOMATIS SISTEM V-MATIC T Towijaya; Isdaryanto Iskandar
Gorontalo Journal of Infrastructure and Science Engineering Vol 5, No 2 (2022): Gorontalo Journal Of Infrastructure And Science Engineering
Publisher : Universitas Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32662/gojise.v5i2.2362

Abstract

Changing of design is often occurs in the field of engineering, especially the automotive field, which is have a rapid and diverse development. One of them is a change or modification in the drive pulley of the V-Matic or CVT (Continuous Variable Transmission) transmission system. These modifications are generally to increase the performance of the motorcycle for certain purposes. Changing of design that are often made by a matic motorbike users are at the tilt of angle of the drive pulley.This study aims to determine the effect of the standard drive pulley angle of 14 degrees and the modified drive pulley of 13.5 degrees, with different angles, the changes in power and torque that occured on motorcycle will be analyzed. Performance testing was carried out using the Dynotest instrument and the fuel was filled with Pertamax. Based on the test results, it was found that using a modified drive pulley produces greater power and torque, namely a maximum power of 7.7 HP at 4450rpm and a maximum torque of  29.49 N.m at 1810rpm than the standard, which is a maximum power only 6.7 HP at 4800 rpm and maximum torque of 23.14 N.mat 1970 rpm. From this data, the percentage of increasing in power is 14.9 percent and torqueis 27.44 percent.Perubahan desain dalam bidang rekayasa kerap terjadi pada bidang otomotif yang mengalami perkembangan pesat dan beragam. Salah satunya adalah perubahan/modifikasi pada bagian drive pulley transmisi otomatis sistem V-Mativ atau CVT (Continuous Variable Transmission). Modifikasi ini umumnya dilakukan untuk menaikan. performa sepeda motor untuk tujuan tertentu perubahan yang sering dilakukan oleh para pengguna sepeda motor metik adalah mengubah sudut kemiringan drive pulley. Penelitian ini untuk mengetahui pengaruh sudut kemiringan drive pulleystandar 14o dan drive pulley modifikasi 13,5o, dengan sudut yang berbeda ini akan dianalisi perubahan daya dan torsi yang terjadi pada sepeda motor. Pengujian performa dilakukan menggunakan instrumen Dynotest dan sepeda motor diisi dengan menggunakanbahan bakar pertamax. Berdasarkan hasil pengujian didapat bahwa menggunakan drive pulley modifikasi menghasilkan daya dan torsi lebih besar, yaitu daya maksimum sebesar 7,7 HP pada putaran 4450 rpm dan torsi maksimum sebesar 29,49 N.m pada putaran 1810 rpm. Kondisi standarnya yaitu daya maksimum sebesar 6,7 HP pada putaran 4800 rpm dan torsi maksimum sebesar 23.14 N.m pada putaran 1970 rpm. Dari data tersebut di dapat persentase kenaikan daya sebesar 14,92% dan torsi sebesar 27,44%.
PENGARUH KECEPATAN PUTAR (RPM) SPINDLE DAN KEDALAMAN PEMAKANAN PADA MESIN BUBUT TIPE KW C0636AX1000 TERHADAP KONSUMSI DAYA LISTRIK Towijaya, T; Prasetyo, Imam
Gorontalo Journal of Infrastructure and Science Engineering Vol 7, No 2 (2024): Gorontalo Journal Of Infrastructure And Science Engineering
Publisher : Universitas Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32662/gojise.v7i2.3814

Abstract

The influence of cutting conditions on power consumption in turning machines is affected by various factors, such as spindle speed, the material being machined, depth of cut, and the tool used during the turning process. This study aims to obtain data on electrical energy consumption in relation to the spindle speed (RPM) settings and depth of cut during the turning process. In this study, the material used is ST-40 steel. The power consumption is obtained from theoretical calculations based on the current data measured empirically during the turning process. With varying spindle speeds of 65 rpm, 180 rpm, and 235 rpm at a cutting depth of 1 mm, the current data measured were 2.25 Amp, 2.12 Amp, and 1.98 Amp, respectively. For a cutting depth of 2 mm, the current measured was 2.46 Amp, 2.27 Amp, and 2.13 Amp. Therefore, the theoretical power obtained at a cutting depth of 1 mm was 1035.41 Watts, 975.58 Watts, and 911.16 Watts. At a cutting depth of 2 mm, the power consumption was 1132.04 Watts, 1044.61 Watts, and 980.18 Watts. The conclusion of this study is that as the spindle speed (RPM) increases, power consumption decreases, while deeper cutting increases the electrical energy required.Pengaruh kondisi pemotongan terhadap pemakaian daya listrik pada mesin bubut dipengaruhi banyak faktor, misalnya kecepatan putaran spindle, material yang dikerjakan, kedalaman pemakanan, dan pahat yang dilakukan pada saat proses pembubutan. Penelitian pada bertujuan untuk memperoleh data konsumsi energi listrik terhadap setting putaran (Rpm) dan kedalaman pemotongan pada proses pembubutan. Pada penelitian ini material yang digunakan adalah ST-40. Konsumsi daya listrik diperoleh dari perhitungan teoritis dari data kuat arus listrik yang dilakukan secara empiris pada saat proses pembubutan berlangsung. Dengan variasi kecepatan putaran 65 rpm, 180 rpm dan 235 rpm kedalaman 1 mm didapat data 2.25 Amp, 2.12 Amp, dan 1.98 Amp. Dan 2.46 Amp, 2.27 Amp dan 2.13 Amp pada kedalaman pemakanan 2 mm. Sehingga daya teoritis yang didapat pada kedalaman pemotongan 1 mm adalah 1035.41 Watt, 975.58 Watt, dan 911.16 Watt. Dan pada kedalaman 2 mm didapat 1132.04 Watt, 1044.61 Watt dan 980.18 Watt. Dari penelitian ini menunjukkan semakin kecepatan putar (Rpm) bertambah konsumsi energi listrik semakin kecil, dan makin dalam pemotongan semakin menambah kebutuhan energi listrik.
Co-Authors Adib Maulana, Shafly Aminuyati Arrassyid, Syadan Baihaki, Iqbal Hadi Al-Rasyid, Muhammad Henry Pradana Hufron Faza, Aji Imam Prasetyo Isdaryanto Iskandar K Anam K Anam Khoirul Anam Khoirul Anam KHOIRUL ANAM KHOIRUL ANAM Luthfi Hakim m ubaidillah Maulana, Aqiem Miftahul F., Ahmad Mubin, Nurul Musyahar, Ghoni Nurcholis Satria Nurul Mubin Nurul Mubin Pujiono, Akhmad Putra, Aszamil Rusdy Rizak, Muchamad sukmo sudiono Syadan Arrassyid W D Lestari W D Lestari Zaky Khusniati, Isna