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All Journal Infotekmesin Jurnal E-Komtek
Prayogo Arie Bowo
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Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering

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Pengaruh Penambahan Konfirgurasi Foam Nine Cell Square Crash box terhadap Pola Deformasi dan Penyerapan Energi Prayogo Arie Bowo; Nur Faizin , Kholis
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2793

Abstract

Crash box is a crucial component in a vehicle's structure, designed to absorb impact energy. Crash box design has been developed to improve energy absorption capability. In this study, the square nine-cell crash box is varied with foam configuration. The addition of foam was chosen due to its lightweight as a filler for crash box. The research method used a computer simulation using ANSYS software. The nine-cell square crash box model consists of three squares, each with a length of 30 mm, 50 mm, and 65 mm, with a connecting rib thickness of 2 mm. Crash box performance is evaluated based on energy absorption and deformation patterns. Frontal load modeling on crash box was modeled with a speed of 12 m/s. Based on the simulation results, it can be found that the configuration of foam on the crash box affects the absorption energy and deformation patterns. The CF-CB 3 model provides energy absorption of 34% compared with no foam crash box due to a more uniform deformation pattern.
Analysis of The Effect of Drive Pulley Diameter Variation on Electric Motorcycle Performance Eric Rico Ardiansyah; Puspitasari, Indah; Nanang Romandoni; Prayogo Arie Bowo; Novi Indah Riani; Deni Nur Fauzi
Jurnal E-Komtek (Elektro-Komputer-Teknik) Vol 9 No 2 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v9i2.2880

Abstract

The primary objective of this study is to investigate how different sizes of drive pulleys influence the performance of an electric motorcycle equipped with a BLDC motor. This was approached using an experimental technique that combined dynotesting and road testing where three drive pulley diameters of 42T, 44T, and 46T were used. While the road tests were intended to measure the top speed of the motorcycle, the dynotests were aimed at acquiring the necessary data to calculate the torque and power. Based on the results of this study, an increase in the drive pulley's diameter will increase the speed of the electric motorcycle, although it will lower the torque. It was found that the 42T drive pulley offers the greatest torque, which is 16.54 Nm at a power of 5.2 HP, and the 46T drive pulley allows for the greatest speed of 63.37 km/h. It is thus apparent that for performance to be properly tailored to the motorcycle, a balance should be struck in line with the intended purpose, which can either be acceleration or the cruising speed.
Co-Authors Deni Nur Fauzi Eric Rico Ardiansyah INDAH PUSPITASARI NANANG ROMANDONI Novi Indah Riani Nur Faizin , Kholis