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All Journal Rekayasa Mesin JTT (Jurnal Teknologi Terpadu) KACANEGARA Jurnal Pengabdian pada Masyarakat Manutech : Jurnal Teknologi Manufaktur Jurnal Teknik Mesin Indonesia Infotekmesin Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Sains dan Teknologi Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB)
Prihadianto, Braam Delfian
Universitas Gadjah Mada
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering

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Analisis Resiko Fuel System Terhadap Kasus Low Power Engine Performance pada Unit Asphalt Finisher di PT. PP Presisi Widada, Reza Ananda; Prihadianto, Braam Delfian; Wibowo, Setyawan Bekti; Harjono, Harjono
Jurnal Teknologi dan Rekayasa Alat Berat Vol 1 No 2 (2024): JTRAB Volume 1, No 2, 2024
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v1i2.11051

Abstract

The fuel system plays an important role in the BOMAG BF 800 C Asphalt Finisher unit operating in road paving work. The engine performance of the BOMAG BF 800 C Asphalt Finisher unit will decrease if no fuel system is checked immediately. The purpose of this study is to analyze the fuel system that causes low power engine performance in the BOMAG BF 800 C Asphalt Finisher unit. The method used to solve these problems is a qualitative method using Fault Tree Analysis (FTA) analysis and Failure Mode and Effect Analysis (FMEA) as well as quantitative methods by calculating the mean time to failure (MTTF) and mean time to repair (MTTR) in accordance with the track record of using and repairing the BOMAG BF 800 C Asphalt Finisher unit. Based on the results of research that has been done, it is stated that the RPN value of the fuel injector is 324 and the fuel filter is 168. This calculation makes these components the most critical components in the case of low power engine performance. The specified maintenance activity interval on the fuel injector is 84 hours and the fuel filter is 35 hours.
Analisis Manajemen Inventori Consumable Goods Dotting Gloves dengan Metode Buffer Stock dan Reorder Point Achmad Fikry; Sugiyanto, Sugiyanto; Aisyah, Nyayu; Prihadianto, Braam Delfian
Jurnal Teknologi dan Rekayasa Alat Berat Vol 1 No 2 (2024): JTRAB Volume 1, No 2, 2024
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v1i2.13267

Abstract

This research aims to optimize consumable goods inventory control for dotting gloves items in a heavy equipment company. The inventory control process uses mathematical calculation methods, namely additional inventory (buffer stock) and reorder points as well as designing a web-based inventory application system. The research results showed that stock outs occurred repeatedly for dotting gloves. In 2023, the initial inventory of this item will be out of stock for 4 months. The frequency of purchasing dotting gloves is relatively small, only done twice in 5 months. After calculating the buffer stock and reorder point, the company is advised to place a reorder when the stock of dotting gloves reaches 83 pairs or 7 dozen to maintain the continuity of the company's operations. Next, a web-based inventory management application was created to automatically detect reorder points on dotting glove items.
Analisis Kekuatan Material Hasil Teknologi Fused Deposition Modelling Sebagai Material Alternatif Shoelast Oktavian, Dicky; Prihadianto, Braam Delfian; Setyawan, Wawan Budi; Frannita, Eka Legya
Jurnal Sains dan Teknologi (JSIT) Vol. 5 No. 3 (2025): September-Desember
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v5i3.3411

Abstract

Pada industri alas kaki penggunaan shoelast merupakan aspek penting dalam proses manufaktur alas kaki. Dalam produksiMass, shoelast materials are generally made of wood, metal, or plastic which requires complex and high-costmanufacturing processes. For limited production needs, prototypes, or custom made materials require quite high costs andlong manufacturing process time. For limited production needs, alternative materials are needed that can be used asshoelast materials. This study aims to analyze the mechanical strength of the material produced by Fused DepositionModelling (FDM) technology as an alternative to shoelast making materials that are more flexible and efficient. The typesof materials used in this study are Polylactic Acid (PLA), Acrylonitrile Butadiene Styrene (ABS), and PolyethyleneTerephthalate Glycol (PETG). The three types of thermoplastic materials were printed with fill density variationparameters using a 3d printer and pressed testing was carried out. The data were analyzed by calculating the average valueand standard deviation of the compressive strength. The results showed that all materials have a compressive strengthhigher than 5 MPa, thus meeting the basic mechanical requirements as a shoelast material. Furthermore, PLA material hasthe characteristics that are suitable for making precise shoelast prototypes, but it is not suitable for repetitive lastingprocesses. While ABS material is more relevant for repetitive lasting processes and PETG material is relevant for limitedproduction but still requires durability
Perhitungan Pengendalian Persediaan Fast Moving Spare Part Dengan Metode Min-Max Stock Khairunnisa, Alyaa Sekar; Prihadianto, Braam Delfian
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1933

Abstract

Maintenance is an effort to maintain a heavy equipment unit to keep it in good condition. One of the techniques to maintain unit performance is by carrying out maintenance management which is a combination of various activities such as monitoring, scheduling, repairing, and inventory control. One part of maintenance management is inventory management which aims to ensure the availability of spare parts in the warehouse so that it can increase the efficiency of maintenance time. The purpose of this study is to calculate the supply of fast-moving spare parts, especially oil filters and diesel filters using the Min-Max Stock method at PT Armada Hada Graha Basecamp Kelontong. The research used a comparative quantitative method utilizing spare parts usage data from January to March 2022 and inventory stock data on March 2022. From the calculation results it can be concluded that the percentage of filter inventory between the minimum and maximum stock values ​​is 7%. It happens due to several factors, namely, materials, methods, machines, and the environment.
Analisis Kekuatan Tarik dan Regangan Filamen Carbon Fiber Hasil 3D Print dengan Variasi Fill Density Prihadianto, Braam Delfian; Darmo, Suryo; Hasan, Dani Anggoro; Ananda, Dovan Ndaru
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1936

Abstract

Mechanical properties problems that are closely related to the strength of 3D printed products generally occur during the development of 3D printing machines, In which several components used are the results of additive manufacturing technology. The damages generally occur in the components that receive force and the damage is in the form of cracks and fractures. The focus of this study is to determine the effects of increasing the value of fill density on mechanical properties, especially tensile strength and strain with carbon fiber filament material. This study used an experimental method using two types of filament material: nylon carbon fiber and PLA carbon fiber with a diameter of 1.75 mm for each filament and a recommended printing temperature of 190-260°C. Both types of filaments were printed using a direct extruder type 3D printing machine with a build size of 180 mm x 180 mm x 180 mm and printing was carried out at atmospheric pressure and a horizontal printing area. The Universal Testing Machine carried out mechanical properties testing implementation related to tensile strength and strain. Based on the results of experiments and tests that have been carried out, the strain values ​​are 16.970 – 26.681% and the tensile strength is 19.244 – 23.899 MPa for nylon carbon fiber filament material. Whereas the PLA carbon fiber filament material, the strain value is 7.673 – 15.546%, and the tensile strength is 18.580 – 24.552 MPa. Therefore, based on the test results, it is known that the fill density parameter value has an influence on the strain value and tensile strength so that it can be used as a reference in setting machining parameters.
Analisis Desain Boom, Arm, dan Bucket Alat Peraga Mini Excavator Zhugimada dengan Metode Elemen Hingga Prihadianto, Braam Delfian; Darmo, Suryo; Anggoro Hasan, Dani; Nur Esa, Suhada
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i1.2124

Abstract

An excavator is heavy equipment with a hydraulic system as the main drive and along with its uses, many parties have developed it as a means of production and as a means of learning. The education world needs excavators as learning tools and practice media are currently constrained by price when commercial units are used. Therefore, a learning media that is more compact but does not abandon the main essence of learning is needed. This research aims to analyze the front attachment design of the Zhugimada mini excavator using the finite element method. The research was carried out using the ANSYS application for the static load simulation process and testing was carried out with a bucket containing sand weighing 25 kg and using three hydraulic cylinders. The simulation results show that the maximum von Mises stress value in the bucket component is 43.226 MPa and the maximum deformation is 0,51285 mm in the tooth bucket so in general the design of the Zhugimada mini excavator front attachment components can be declared safe and can be continued in the fabrication process.
Analisis Optimalisasi Perawatan Excavator Untuk Menunjang Produktivitas Unit Luthfi Wifaqi, Ahmad Naufal; Prihadianto, Braam Delfian; Winarto, Felixtianus Eko Wismo; Harjono; Oktavian, Dicky
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2387

Abstract

Maintenance is an important daily activity that aims to ensure equipment or units can operate properly by reducing the risk of damage. One of the heavy equipment units used in mining projects is an excavator, but the high frequency of breakdowns in excavator units requires optimization of the maintenance that has been carried out. This study aims to analyze the performance and effectiveness of hydraulic excavator unit maintenance using the physical availability, mechanical availability, use of availability, mean time between failure, and mean time to repair calculation methods. The calculations show an 8.12% increase in the average PA, MA, and UA values and a 5.16-hour increase in MTBF. Meanwhile, the MTTR calculation results indicate a time reduction of 6.16 hours after optimization. The calculation results after optimization show that the maintenance carried out is effective and efficient to support the unit's productivity
Uji Performa Sistem Hidrolik Alat Peraga Mini Excavator Zhugimada Nur Esa, Suhada; Prihadianto, Braam Delfian; Anggoro Hasan, Dani; Ardean Kurnianto Prayitno, Yosephus; Septian, Miko; Nurul Hidayat, Anisa
Infotekmesin Vol 16 No 1 (2025): Infotekmesin: Januari 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i1.2532

Abstract

Practical learning activities on heavy equipment units are important because they increase understanding of work systems and provide an actual picture. The need for excavators for practicum activities in vocational education is currently hampered by price issues when commercial units are used as learning tools, therefore learning media in a more concise form are needed without ignoring important aspects. The manufacture of mini excavator props has been carried out but research related to work system testing is still rare, so performance testing of the work system is needed to ensure the performance of the props. The aim of this research is to test cylinder speed, cylinder pressure and cylinder drift using quantitative observation methods with variations in zero capacity, struck capacity and heaped capacity transport. From the test results, it was found that the cylinder speed values ​​were between 0.028–0.081 m/sec, the cylinder pressure was 17–20 bar for the boom, 65–72 bar for the arm, 24–34 bar for the bucket and the increase in length in the cylinder drift test was 0 mm
RANCANG BANGUN BUCKET PADA MINI EXCAVATOR LISTRIK Sugiyanto, Sugiyanto; Prihadianto, Braam Delfian; Harjono, Harjono; Estiko, Dendi Milnanda; Siswantoro, Soeadgihardo
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1723

Abstract

The prime mover for the majority of heavy equipment units is still dominated by fossil fuel engines. Before starting innovation on expensive large excavator machines, innovation can be started with electric mini excavators which have almost the same working system but have affordable development costs. This research focuses on the bucket which is an indicator of the performance of an excavator unit. The research method used was designing, making, and testing a bucket attached to a mini excavator. The final objective of this research is to design the bucket components that are installed on the electric mini excavator and also determine the volume of the bucket when it is in the flat position (struck) and in the full position (heaped). Based on research that has been carried out, the bucket volume of the mini excavator props when it is in the flat position (struck) is 0.012 m3 or the equivalent of 16.8 kg of sand and when it is in the full position (heaped) it is 0.017 m3 or the equivalent of 23.8 kg of sand.
RANCANGAN SISTEM HIDROLIK PADA FRONT ATTACHMENT ALAT PERAGA MINI EXCAVATOR Purwanto , Sigit; Aisyah , Nyayu; Prihadianto, Braam Delfian; Krisnaputra , Radhian; Wismo , F. Eko; Bahiuddin , Irfan
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1729

Abstract

As one of the heavy equipment, an excavator is used to facilitate construction work and streamline time and energy. Hydraulic excavators are widely used in construction, mining, quarrying, and forestry applications. A hydraulic excavator is a type of heavy equipment that has several functions such as digging, loading, lifting, scraping, grading, braking, etc. One of the products which is developed by the Mechanical Engineering Department of Vocational School (SV-UGM) is the Mini Excavator. Mini Excavator has a function as excavators in general. A smaller size makes it easier to operate and apply in the field are more compact and do not require a large area. This equipment is expected to be the right teaching aid in supporting the learning process of students of the Heavy Equipment Management and Maintenance Engineering Study Program in the Mechanical Engineering Department. For the learning process to be optimal, the equipment used should be optimal. Therefore, in this research, the design and construction of the Traction Drive System for Backhoe Type Hydraulic Excavators will be carried out and some testing will also be conducted to know the performance of the mini excavator
Co-Authors Achmad Fikry Aisyah , Nyayu Aisyah, Nyayu Aji , Angga Prasetio Aji, Angga Prasetio Aldi Prabowo Alyaa Sekar Khairunnisa Ananda, Dovan Ndaru Anggoro Hasan, Dani Ardean Kurnianto Prayitno, Yosephus Ari Reza Koswara Arifin, Fadhilah Akmal Rofiq Bahari, Galuh Bahiuddin, Irfan Benidiktus Tulung Prayoga Dani Anggoro Hasan Dani Anggoro Hasan Dovan Ndaru Ananda Eka Legya Frannita Estiko, Dendi Milnanda Felixtianus Eko Wismo Winarto Fikry Alvianto Kurniawan, Fikry Gesang Nugroho Handoko Harjono Harjono Harjono Hasan, Dani Anggoro Irsal Revanza Khairunnisa, Alyaa Sekar Kurniawan, Stephanus Danny Luthfi Wifaqi, Ahmad Naufal M.Burhanudin Muhammad Imam Yusuf Nur Esa, Suhada Nurul Hidayat, Anisa Oktavian, Dicky Purwanto , Sigit Radhian Krisnaputra Septian, Miko Setyawan Bekti Wibowo Setyawan, Wawan Budi Soeadgihardo Siswantoro Sugiyanto - Suhada Nur Esa Surojo, Surojo Suryo Darmo Suryo Darmo Widada, Reza Ananda Wismo , F. Eko Wiyono, Al Difa Naufal Akmal