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All Journal Jurnal Teknik dan Science (JTS) Almikanika
Sopian, Yusuf
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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Utilization of Sugarcane Bagasse Fiber in Composite Board Mixtures as a Sound Absorber Solihat, Ihat; Sopian, Yusuf
Jurnal Teknik dan Science Vol. 4 No. 2 (2025): Juni : Jurnal Teknik dan Science
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/jts.v4i2.2135

Abstract

An Noise occurring in a room can be reduced or dampened in intensity by installing composite boards on the walls. Composite board material is made from a mixture of resin and sugarcane bagasse fiber. Sugarcane bagasse is a by-product of sugarcane juice extraction, commonly found around sugar factories or as waste from sugarcane juice processing. The utilization of this bagasse as a mixture in composite boards with resin was carried out using board dimensions of 30 × 30 × 1 cm. The composition ratios between bagasse and resin were 60:40, 70:30, 75:25, and 80:20.Based on sound wave testing at frequencies of 250 Hz, 500 Hz, and 750 Hz, the best sound absorption performance was found at the 60:40 composition at a frequency of 750 Hz, where the initial sound intensity was 95.5 dB and was reduced by 62.8 dB. This result indicates a sound absorption coefficient of 0.408, which is relatively good. The lowest absorption was observed at the 80:20 composition with a coefficient of 0.0296 at a low frequency of 250 Hz. This phenomenon occurs because a higher resin content results in a denser structure that reduces sound absorption, whereas a higher fiber content leads to increased porosity, enhancing the composite's ability to absorb sound.
DESAIN KONSTRUKSI ALAT PENDINGIN PORTABEL DI SEPEDA MOTOR Sopian, Yusuf; Rahmat, Mamat; Edi, Sutoyo
ALMIKANIKA Vol 3 No 1 (2021): Januari
Publisher : UNIVERSITAS IBN KHALDUN BOGOR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/almikanika.v3i1.2220

Abstract

The number of motorbike riders who modify their motorbikes uses a box, giving rise to the idea of modifying the box as a beverage cooler box. Modification of the box into a beverage cooler box affects the structure of the box, so it requires a bracket that matches the box. This study aims to determine the bracket strength when receiving loads 65.70 N. Obtain the value of the comparison of structural strength between theoretical calculations and CAD software simulation. Research methodology in this research method, researchers use quantitative methods. The things done in this research methodology, designing the design of a tool using CAD software, making a construction design, calculating the strength of the main part of the bracket when given a load are then theoretically compared with the strength of the material when given a load in simulation. The results of this study are known, the force that occurs in the main part of the bracket is 65.70 N. The calculation is theoretical approach deflection value on the main part of the bracket is 0.017 mm, bending moment in the main part of the bracket is 1.971 N / m, and voltage value bending on the main part of the bracket is 3.89 MPa, while the safety factor according to theoretical calculations is 2.72 simulation results using CAD software, namely inventor 2016 by using simulation stress analysis, the load that occurs in the main bracket is 65.70 N, displacement simulation results the maximum value is located at 0.0014 mm and the minimum value is at 0 mm, the maximum value and maximum voltage location (Von Misses) is at 7.146 Mpa and the minimum number is 0 MPa, while the Safety Factor is at a maximum of 15.
Co-Authors Edi, Sutoyo Mamat Rahmat Solihat, Ihat