Journal of Evrímata: Engineering and Physics https://evrimata.id/index.php/EEP <p><strong><span style="font-size: 18.0pt;">Journal of Evrimata: Engineering and Physics </span></strong></p> <p>The interdisciplinary research edition covers the following scientific areas:</p> <p style="margin: 0mm; margin-bottom: .0001pt;">- Engineering (miscellaneous)</p> <p style="margin: 0mm; margin-bottom: .0001pt;">- Civil and Structural Engineering</p> <p style="margin: 0mm; margin-bottom: .0001pt;">- Electrical and Electronic Engineering</p> <p style="margin: 0mm; margin-bottom: .0001pt;">- Mechanical Engineering</p> <p style="margin: 0mm; margin-bottom: .0001pt;">- Chemical Engineering</p> <p style="margin: 0mm; margin-bottom: .0001pt;">- Physics</p> <p style="margin: 0mm; margin-bottom: .0001pt;">- Computer Science<br />- Energy</p> <p> </p> <p><em><strong>Taking into account the interdisciplinary character</strong></em> of the journal, the authors in its materials should <em><strong>emphasize field of application </strong></em>of their research, always <em><strong>emphasizing the importance of the subject for</strong></em> the research community in related fields of knowledge.</p> PT. ELSHAD TECHNOLOGY INDONESIA en-US Journal of Evrímata: Engineering and Physics 3025-1265 THE EFFECT OF BRAKE PADDING STRIKES AND REVERSING SPRING PRESSURE ON ACCELERATION OF DRUM BRAKES https://evrimata.id/index.php/EEP/article/view/19 <table width="652"> <tbody> <tr> <td width="442"> <p>Car performance is getting better and better over time. This is thanks to developments in engineering technology. Starting from conventional systems to VVTI technology. What you get is great power with very economical fuel consumption (high efficiency). Even more important is good exhaust emissions. All of this is simply managed by a tool called the ECU (Electronic Computerized Unit).</p> <p>However, this large power output cannot be used properly by a vehicle if it is not equipped with a good chassis system and power scanning system. For this reason, this research will look for/obtain a good chassis system that can match the good engine system to date. The objectives of this research are 1. Is there a big influence of the tensile force of the return lining spring and the stroke of the brake lining on speed acceleration. 2. Look for the right pulling force of the cotton turning spring and the right lining strokes to produce high speed acceleration. The method used in this research is experimental. Meanwhile, the material used is a type of brake lining that is available on the market and is marked with strokes. The reversing spring is set to the desired tensile force. And the research data will be processed using Minitab software.</p> <p>The research results show that: . 1. Scratches on the surface of the brake lining have a big influence on the release of the brake lining from the brake drum wall. By periodically applying strokes to the surface of the canvas, it will increase/maintain vehicle acceleration. 2. The pressure of the brake lining return spring affects the release of the drum brake lining. However, the greater the spring pressure, the more the vehicle's acceleration decreases. 3. Maximum scratches on the drum brake lining surface are 1 (mm).</p> <p>&nbsp;</p> <p>Keywords: Drum Brakes, Spring Style, Drum Brake Pads, Speed ​​Acceleration,</p> <p><em>&nbsp;</em></p> </td> </tr> </tbody> </table> listiyono listiyono nurhadi nurhadi Hazlina Md Yusof Copyright (c) 2024 listiyono listiyono, nurhadi nurhadi, Hazlina Md Yusof https://creativecommons.org/licenses/by/4.0 2023-12-31 2023-12-31 1 2 38 41 Optimization of Injection Molding Temperature and Pressure on the Quality of Polypropylene Cutting Board https://evrimata.id/index.php/EEP/article/view/20 <p>This study delves into the optimization of polypropylene cutting board production through injection molding. Polypropylene, derived from propylene monomers, serves as the primary material. The injection molding process often leads to flash defects due to inadequate temperature and pressure settings. The research aims to discern the individual and interactive effects of temperature and injection pressure on the weight and surface area of the cutting boards. Experimental variations encompass temperature levels of 165°C to 175°C and injection pressures ranging from 25 Psi to 35 Psi. Data collection employs experimental methods, and analysis utilizes factorial and RSM approaches. Findings reveal that the lightest cutting boards result from the lowest temperature (165°C) and injection pressure (25 Psi), with an average weight of 105.6009 grams and a surface area of 21,158.3333 mm². In conclusion, both temperature and injection pressure significantly influence the weight and surface area of polypropylene cutting boards, providing valuable insights for enhanced manufacturing processes<em>.</em></p> Sugeng Hadi Susilo Ramadhana Luhur Prabangkara Copyright (c) 2023 Ramadhana Luhur Prabangkara, Sugeng Hadi Susilo https://creativecommons.org/licenses/by/4.0 2024-04-08 2024-04-08 1 2 42 46