Jurnal Teknologi dan Rekayasa Alat Berat 2024-05-15T20:44:29+07:00 Dr. Sugiyanto Open Journal Systems <p><strong><img src="/v3/public/site/images/adminjtrab/500x7001.png">Jurnal Teknologi dan Rekayasa Alat Berat</strong> (Journal of Heavy Equipment Technology and Engineering) is a scientific publication journal in the field of management and maintenance of heavy equipments published by the Department of Mechanical Engineering, Vocational College, Gadjah Mada University. Issues are published twice every year. The scope includes predictive maintenance, failure analysis, monitoring systems for heavy equipment, dynamic analysis of heavy equipment, diesel engines, management systems and information on spare parts warehousing, management of heavy equipment use, engineering control of heavy equipment, and others.</p> <p>JTRAB accepts scientific papers in the field of management and maintenance of heavy equipment. Scientific papers can be in the form of Regular articles: high-quality original research reports with conclusions that represent significant advances in this field. Technical note: Short articles are technical in nature and produce useful new additions. Review article: comprehensive, detailed, literature review results on a topic research. The submitted manuscripts to JRTAB must have never been published to any other publishers.</p> Integration Hydraulic System of The Double Cylinder Vessel and The Sweeper Arm at Electric Road Sweeper 2024-02-23T15:13:55+07:00 Robertus Tirta Kuncoroadi Kuncoro Sugiyanto Sugiyanto Stephanus Danny Kurniawan Ridha Ikhsan <p><em>The use of electric road sweeper waste sweeping vehicles can increase effectiveness in waste management. This electric road sweeper research aims to integrate the hydraulic system of the sweeper arm and the double cylinder vessel. The process of designing a hydraulic system diagram uses FluidSIM 4.2 software and carries out mathematical calculations based on collecting data directly in the field. The test results show that when the vessel is unloaded, the movement of the sweep arm hydraulic cylinder when extending is 4.20 m/s and the retract movement is 3.1 m/s, and the movement of the vessel hydraulic cylinder when extending is 11.77 m/s and the movement retract worth 9.4 m/s. When the vessel was given a load of 100 kg, the test results obtained were that the movement of the hydraulic cylinder of the sweep arm during extend was 4.20 m/s and the retract movement was 3.1 m/s, as well as the movement of the vessel's hydraulic cylinder in both extend movements was 12.30 m/s. s and a retract movement of 8.60 m/s. It can be seen based on the results of the tests carried out that the load on the vessel influences the movement speed of the vessel's hydraulic cylinder, this is caused by the influence of gravity.</em></p> 2024-02-02T00:00:00+07:00 Copyright (c) 2024 Jurnal Teknologi dan Rekayasa Alat Berat Design and Manufacturing of a Double Cylinder Vessel for an Electric Road Sweeper Unit. 2024-02-23T15:13:56+07:00 Ridha Ikhsan Sugiyanto Sugiyanto Andhi Akhmad Ismail Robertus Tirta Kuncoroadi <p>The electric road sweeper developed by the Mechanical Engineering Department of the Gadjah Mada University Vocational School can handle waste management problems. To improve sweeper performance, several changes are still required in the unit, especially in the sweeper vessel section. In an effort to improve sweeper performance, vessel design is needed. Design and performance analysis of vessels using Autodesk Inventor software. In this research, the addition and replacement of hydraulic cylinder types was carried out to make it a transport vehicle. Apart from that, the use of lighter materials also reduces the weight of the vessel from 650 kg to 278.95 kg. The simulation results show that all vessel sweeper components have a safety factor above one, indicating that they are safe to use. Apart from that, this design is able to withstand loads of up to 4900 N without exceeding the yield strength limit of the material used by the vessel. The maximum inclination of the sweeper vessel is 30.4 degrees. Hydraulic cylinder testing shows an extend speed of 11.77 m/s and a retract speed of 7.9 m/s. Under 100 kg load conditions, the extend speed becomes 12.49 m/s and the retract becomes 8.39 m/s, the retract movement is faster due to gravity.</p> 2024-02-02T00:00:00+07:00 Copyright (c) 2024 Jurnal Teknologi dan Rekayasa Alat Berat Fabricating And Analyzing The Pressure and Rpm Performance of Hydraulic Swing Components on A Mini Excavator Trainer 2024-05-15T20:44:29+07:00 Angga Prasetio Aji Galuh Bahari Felixtianus Eko Wismo Winarto Braam Delfian Prihadianto <p><em>A learning method is very important to achieve existing curriculum standards. For success in the learning process, media or teaching aids are needed that can enhance the learning process and outcomes relating to students' level of thinking (Suwardi et al, 2014). Mini excavator teaching aids are one solution to help become a learning medium for hydraulic systems. Making hydraulic swing components is used to perfect components in mini excavator teaching aids which will later be developed as teaching aids for hydraulic drive systems. The final objective of this research is to manufacture hydraulic swing components that will be installed on mini excavator props and the last is to determine the pressure and rpm performance of the hydraulic swing components. Based on research that has been carried out, to operate a mini excavator prop requires a dimensional radius or distance from the center point with a warning line of 3 m² and the maximum pressure on the mini excavator prop is 150 kgf/cm² which produces 11.17 rpm while the pressure permitted for operating the hydraulic swing component on the mini excavator prop is 100 kgf/cm² which produces 8.54 rpm.</em></p> 2024-02-02T00:00:00+07:00 Copyright (c) 2024 Jurnal Teknologi dan Rekayasa Alat Berat Analysis of Dump Truck Diesel Engine Flywheel Housing Fracture Based on Physical Properties and Mechanical Materials 2024-02-23T15:13:58+07:00 Yanuwar Ilpan Pramono Radhian Krisnaputra Lilik Dwi Setyana I. Aris Hendaryanto <p><em>This research aims to identify the causes of material failure in the flywheel housing of diesel engines used in dump trucks in corporate sectors such as mining, plantations and infrastructure in Indonesia. Through mechanical testing which includes visual observations, tensile, impact and hardness tests, as well as microstructural observations and chemical composition analysis, this research found that the flywheel housing material has brittle properties. The test results show the highest tensile strength of 23.021 MPa, the average impact value of 0.0417 J/mm2, and the average hardness value of 106.708 VHN. The microstructure of the flywheel housing material is dominated by the Al-Si alloy element, which makes the material tend to be brittle. Several factors that can cause cracks in the flywheel housing include the work environment, material properties, lack of maintenance, and operational errors.</em></p> 2024-02-02T00:00:00+07:00 Copyright (c) 2024 Jurnal Teknologi dan Rekayasa Alat Berat Optimasi Perencanaan Penggantian Pegas Daun pada Truk Hino FM 260 Jd di PT PP Presisi Tbk Proyek Tol Indrapura–Kisaran 2024-02-23T15:13:58+07:00 Ardhi Nur Praditya Praditya Felixtianus Eko Wismo Winarto <p><em>Leaf springs are an important component of a truck's suspension system, but they can suffer premature failure due to extreme road conditions and inadequate maintenance implementation. This can disrupt construction projects and lead to increased costs. A study was conducted to investigate the factors that cause leaf spring failure on the Hino FM 260 JD unit in the Indrapura–Kisaran toll road construction project, North Sumatra. This study found that the average life of front leaf spring components is shorter than the manufacturer's recommended service life. This was caused by the extreme road conditions in the region, as well as inadequate implementation of maintenance by the project team. Adopting new replacement recommendations will result in reduced component efficiency and increased prices. The findings of this study emphasize the importance of proper maintenance and replacement of leaf springs to prevent disruptions in construction projects. This study also provides insight into the factors that can cause premature leaf spring failure, which can be used to improve the reliability of truck suspension systems. The results of the analysis provide recommendations for planning the replacement of one type of spring with a range of 46,011.62 to 51,959.58 kilometers.</em></p> 2024-02-02T00:00:00+07:00 Copyright (c) 2024 Jurnal Teknologi dan Rekayasa Alat Berat