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All Journal Scientific Journal of Mechanical Engineering Kinematika Jurnal Pendidikan Vokasi Otomotif
Daniel Moses Samosir
Universitas Pendidikan Indonesia
Humanities Automotive Engineering Education Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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RANCANG BANGUN SISTEM PERINGATAN KANTUK PADA PENGENDARA SEPEDA MOTOR BERBASIS FUZZY LOGIC Daniel Moses Samosir; Aditya Bayu Setyaji; Ramdhani Ramdhani; Yusep Sukrawan
Scientific Journal of Mechanical Engineering Kinematika Vol 9 No 1 (2024): SJME Kinematika Juni 2024
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v9i1.311

Abstract

Motorcycle riders are basically required to drive with awareness of orderly behavior on the road. However, the fact is that many motorbike accidents are still caused by negligence, one of which is drowsiness while driving. This research aims to develop a fuzzy logic-based drowsiness prevention tool for motorcyclists. This tool goes through 4 stages of testing, namely power supply, sensor, microcontroller and actuator. The results of testing are that the power supply on this tool functions well, the tools on the motorbike and helmet function well according to the program designed on the microcontroller, the pulse sensor designed for motorbikes does not function as it should, so for temporary research the Max sensor is used 30100 as a pulse reader, buzzer, vibrator and relay in this tool functions well and is more accurate compared to previous research according to the fuzzy rules that have been programmed. The use of sensors on the wrist has proven to be effective in detecting pulse, so that the accuracy of sleepiness readings is in line with pulse readings, namely 100%, which is a follow-up to previous research. Fuzzy logic on the device influences the microcontroller to work accurately according to what has been programmed.
PENGARUH MODIFIKASI PORTING DAN POLISH TERHADAP PERFORMA ENGINE PADA SEPEDA MOTOR TIPE K81 Wawan Septian; Yusep Sukrawan; Ibnu Mubarak; Daniel Moses Samosir
Jurnal Pendidikan Vokasi Otomotif Vol. 8 No. 2 (2026): (Mei)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpvo.v8i2.93594

Abstract

Modifikasi engine merupakan salah satu cara untuk meningkatkan performa kendaraan bermotor. Teknik porting dan polish dilakukan dengan memperbesar serta menghaluskan saluran masuk (intake) dan buang (exhaust) pada silinder head agar aliran udara-bahan bakar lebih optimal. Penelitian ini bertujuan untuk mengetahui pengaruh modifikasi porting dan polish terhadap performa mesin sepeda motor, terutama pada parameter daya, torsi, dan akselerasi. Metode penelitian yang digunakan adalah eksperimen dengan membandingkan kondisi engine standar dan engine setelah dimodifikasi. Pengujian dilakukan menggunakan dynamometer untuk mengukur daya dan torsi pada berbagai putaran rpm engine, serta uji jalan (road test) untuk mengukur akselerasi pada jarak 100 meter dan 200 meter. Hasil penelitian menunjukkan adanya peningkatan performa setelah modifikasi. Peningkatan daya tertinggi terjadi pada 6000 rpm sebesar 32,65% dan pada 8000 rpm sebesar 30,72%. Torsi juga meningkat signifikan, dengan kenaikan terbesar pada 6000 rpm sebesar 32,72%. Uji jalan memperlihatkan motor hasil modifikasi lebih cepat 0,17 detik pada jarak 100 meter dan 0,79 detik pada jarak 200 meter dibanding motor standar. Dapat disimpulkan bahwa modifikasi porting dan polish mampu meningkatkan performa mesin terutama pada putaran menengah hingga tinggi. Namun, peningkatan tidak merata di semua rentang putaran rpm, sehingga diperlukan penyempurnaan desain port agar hasil lebih stabil.
Co-Authors Aditya Bayu Setyaji Ibnu Mubarak Ramdhani Ramdhani Wawan Septian