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All Journal Jurnal Simetris Rekayasa Mesin Jurnal Rekayasa Mesin Journal of Mechanical Engineering Science and Technology JTT (Jurnal Teknologi Terpadu) Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control International Journal of New Media Technology J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Infotekmesin Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Mekanik Terapan Jurnal Material Teknologi Proses: Warta Kemajuan Bidang Material Teknik Teknologi Proses Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB)
Radhian Krisnaputra
Universitas Gadjah Mada
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisis Kerusakan Track Adjuster Pada Excavator Kelas 20 Ton Anwari, Muhammad; Nugroho, Danuarta Adi; Rosyid, Fakih Aulia; Bagaskara, Pagi Singgamata; Wibowo, Tegar Taufik; Pratama, Bagus Ardyansyah Ilham; Krisnaputra, Radhian; Aisyah, Nyayu
Jurnal Teknologi dan Rekayasa Alat Berat Vol 2 No 2 (2025): JTRAB Volume 2, No 2, 2025
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v2i2.14600

Abstract

The track adjuster is an important component on the excavator wheel that serves to adjust the tension of the track chain and reduce drag on the front of the excavator unit. When the excavator wheels are active (loading or digging), the track adjuster becomes the main support, especially when moving. The undercarriage of the excavator has to deal with road or soil structure resistance as it is in direct contact with the surface. A wear and tear analysis of the track adjuster shaft on industry Y's excavator X revealed several problems: broken spring, track piston with scratches, leaking seal and rusted rod. Corrective measures involved replacing the damaged components with new ones. In addition, routine maintenance includes cleaning the unit to facilitate checking the undercarriage, especially the track adjuster. With proper maintenance, the life of these components can be extended and excavator performance optimized.
Optimasi Kekerasan dan Ketahanan Impact Baja VCN 150 dengan Variasi Tempering untuk Aplikasi Poros Track Roller Bearing pada Mesin Pembelah Bambu Krisnaputra, Radhian; Satiti, Nareswari Novita; Irawati, Inggar Septhia; Hendaryanto, Ignatius Aris; Sugiyanto, Sugiyanto; Bahari, Galuh
Jurnal Rekayasa Mesin Vol. 18 No. 3 (2023): Volume 18, Nomor 3, Desember 2023
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v18i3.4326

Abstract

Penggunaan mesin pembelah bambu dalam produksi bambu laminasi adalah untuk mengubah batang bambu menjadi bilah-bilah bambu. Pada mesin pembelah bambu di Rosse Bambu Yogyakarta terjadi kerusakan komponen yaitu patahnya poros track roller bearing. Poros mengalami mekanisme patah getas yang disebabkan oleh ketidaksesuaian pemilihan material. Diketahui bahwa poros yang patah terbuat dari baja karbon tinggi AISI 1080 yang telah melalui proses quenching. Poros track roller bearing dari mesin pembelah bambu diharapkan memiliki ketahanan impact yang tinggi namun juga harus memiliki nilai kekerasan yang sesuai dengan standar nilai kekerasan poros. Dengan memilih material substitusi yang ideal untuk poros dan mengidentifikasi proses perlakuan panas yang tepat untuk mendapatkan sifat material yang diinginkan, proses yang efektif dapat diketahui untuk meningkatkan masa pakai poros track roller bearing dan mengurangi potensi terjadinya kegagalan serupa. Tujuan dari penelitian ini adalah untuk mengetahui temperatur tempering optimum yang dapat dilakukan terhadap baja VCN 150 sebagai material substitusi poros track roller bearing pada mesin pembelah bambu. Pada penelitian ini proses perlakuan panas dilakukan dengan memanaskan spesimen uji pada temperatur 850 °C dalam tungku selama 1 jam kemudian dilanjutkan dengan quenching dengan media oli. Setelah quenching, dilakukan tempering pada temperatur 200 °C, 300 °C, dan 400 °C selama 1 jam kemudian dilanjutkan dengan pendinginan di udara bebas. Pengujian yang dilakukan meliputi uji struktur mikro, uji kekerasan Vickers, uji impact Charpy, dan analisis fraktografi menggunakan Scanning Electron Microscope pada permukaan patahan hasil uji impact. Hasil pengujian menunjukkan bahwa spesimen yang melalui proses tempering pada temperatur 400 °C memberikan hasil optimum dengan nilai kekerasan sebesar 359,92 HV dan harga impact sebesar 1,37 J/mm ².
Pengaruh Besar Butir dan Temperatur Pemanasan Pasir Cetak Terhadap Sifat Mekanis Cetakan Delfian Prihadianto, Braam; Krisnaputra, Radhian; Darmo, Suryo; Prabowo, Aldi
Infotekmesin Vol 12 No 1 (2021): Infotekmesin: Januari 2021
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v12i1.471

Abstract

Casting is a manufacturing process that uses molten metal and molds to obtain a product that is closer to its final geometry. The quality of casting products is influenced by several factors and one of the important factors is the mold. The sand that is often used in making molds is resin coated sand, since this sand will bond to one another if it is heated. The research focus is determine the effects of grain size and heating temperature of resin coated sand on the mechanical properties of the mold which include compressive, shear and tensile strength. This study used an experimental method with large parameters of resin coated sand and heating temperature. From the test results, the highest compressive, shear and tensile strength values are Produced by sand with grain size less than 300 µm are identified.. The high heating temperature makes the bonds between the sands stronger and the strength value is higher..
Analisis Pengaturan Inverter Terhadap Unjuk Kerja Mesin Planer Bambu V2 Dalam Menghasilkan Serutan Bambu Laminasi Prasta, Silvano Virgio Prasta; Aris Hendaryanto, Ignatius; Basuki, Budi; Krisnaputra, Radhian; Sugiyanto; Septhia Irawati, Inggar
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.v15i1.2009

Abstract

Planer bamboo machine V2 is a machine used to flatten the top and bottom surfaces of bamboo slats. This machine was made to overcome problems with existing machines in the form and long times of drawstring. An inverter is added to set the rotational speed roller. This study analyzes the effect of a combination of the top and bottom cutting speeds on the rotation speed of roller whose rotation speed was set at frequencies of 10, 20, 30, 40, and 50 Hz. The purpose of the study is to determine the effect of inverter frequency settings on the results of bamboo drawstring. Based on the analysis performed, the appropriate combination for the performance planer bamboo machine is by setting the inverter frequency to 20 Hz with a production result in a day of 54,54 slats drawstring with long of slats 2 meters, with a total power consumption of 2,483 kWh in one hour.
Simulasi Computational Fluid Dynamics (CFD) untuk Optimalisasi Proses Perekatan pada Oven Bambu Laminasi Bahari, Galuh; Septhia Irawati, Inggar; Aris Hendaryanto, Ignatius; Ayu Putri Pratiwi, Ilham; Krisnaputra, Radhian; Sugiyanto; Wijoyo, Joannes Bimo
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.v16i1.2567

Abstract

The utilization of bamboo in architecture and construction as an eco-friendly alternative to wood is steadily increasing. While ovens are crucial tools in the production of laminated bamboo, particularly for heating during the bonding process, research on ovens specifically designed for bamboo lamination remains scarce. This study aims to optimize the design of laminated bamboo ovens using Computational Fluid Dynamics (CFD) simulations to achieve uniform heat distribution and maximize thermal efficiency. Three design iterations were tested: Iteration 1 with an air velocity of 4 m/s, Iteration 2 with 1.5 m/s, and Iteration 3 with 3 m/s. The results revealed that Iteration 1 exhibited uneven heat distribution, with initial temperatures reaching 1175 K before dropping sharply to 800 K. Iteration 2 showed slower initial heating, achieving a final temperature of 360 K, but heat distribution remained suboptimal. Iteration 3 delivered the best performance, achieving uniform and stable heat distribution near the target temperature of 473 K (200 °C). Overall, Iteration 3 demonstrated the most efficient thermal performance, not only meeting the target temperature with consistent heat distribution but also enhancing the overall heating efficiency of the oven.
PERANCANGAN SISTEM HIDROLIK PADA MESIN PRESS BAMBU LAMINASI Gumilang, Theo Satria; Krisnaputra, Radhian; Sugiyanto, Sugiyanto; Hendaryanto, Ignatius Aris; Irawati, Inggar Septhia; Bahari, Galuh
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1484

Abstract

The hydraulic system is a power transmission system by using the compressive energy of the fluid into mechanical energy to obtain a power greater than the initial power released. The press machine is one of the pieces of equipment that apply the hydraulic system. In the process of making laminated bamboo, the bamboo gluing technique is assisted using a press machine. Based on observations, the press machine used is a manual press machine, so the pressing process is not efficient. This study aims to increase the effectiveness of pressing laminated bamboo. The results of the study found that the press machine has 4 hydraulic cylinders so the pressing process can be carried out at several points simultaneously. The results of the hydraulic system analysis diagram show hydraulic cylinder moves in 16,9 seconds with a pressure of 100 bar, so the pressing process is fast. Mathematical calculations produce data, a hydraulic gear pump with a displacement of 13 cc/rev, electric motor power of 3,7 kW, hydraulic cylinder diameter of 63 mm, cylinder rod of 35 mm, rod of 400 mm, and a hydraulic tank capacity of 12 liters.
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
ANALISIS EMISI GAS BUANG MESIN DIESEL TIPE COMMON RAIL DENGAN VARIASI BAHAN BAKAR B0 DAN BIO DIESEL B40 Radhian Krisnaputra; Ilham Ayu Putri Pratiwi; Yosephus Ardean Kurnianto Prayitno; Isworo Djati; Sindhu Arya Nugraha
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Universitas Proklamasi 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2460

Abstract

Kebutuhan akan sumber energi yang ramah lingkungan mendorong pengembangan bahan bakar alternatif berbasis biomassa, salah satunya biodiesel. Pemerintah Indonesia telah mentargetkan penerapan campuran biodiesel hingga B40 sebagai bagian dari strategi transisi energi nasional. Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan bahan bakar campuran biodiesel 40% (B40) terhadap konsumsi bahan bakar dan emisi gas buang pada mesin diesel tipe common Rail Direct Injection(CRDI) dibandingkan bahan bakar solar murni (B0). Pengujian dilakukan menggunakan variasi putaran mesin 800, 1500, dan 2000 rpm, dengan pengukuran parameter Fuel Consumption Ratio (FCR), dan emisi gas buang (CO, CO₂, NOx, dan O₂). Hasil penelitian menunjukkan bahwa penggunaan B40 menyebabkan peningkatan konsumsi bahan bakar sebesar 5–10% akibat nilai kalor yang lebih rendah, namun daya keluaran mesin tetap setara dengan B0 karena sistem injeksi common rail mampu melakukan kompensasi tekanan secara adaptif. Dari aspek emisi, B40 menghasilkan penurunan emisi CO hingga 30% dan penurunan NOx sebesar 15–20%, disertai dengan sedikit peningkatan CO₂ akibat pembakaran yang lebih sempurna. Kandungan oksigen residu (O₂) pada gas buang B40 sedikit lebih rendah dibandingkan B0, menandakan pemanfaatan oksigen biodiesel yang lebih efisien dalam proses pembakaran. Hasil penelitian menunjukkan bahwa mesin diesel tipe common rail mampu beroperasi secara stabil menggunakan bahan bakar B40 tanpa modifikasi sistem, sekaligus menghasilkan profil emisi yang lebih bersih dan efisiensi pembakaran yang baik.
Analisis Pengaruh Campuran Biodiesel terhadap Performa dan Emisi Gas Buang Mesin Diesel Common-Rail Pratiwi, Ilham Ayu Putri; Krisnaputra, Radhian; Bahiuddin, Irfan; Djati, Isworo; Nugraha, Sindhu Arya
Jurnal Mekanik Terapan Vol 6 No 3 (2025): Desember 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i3.8042

Abstract

This study aims to analyze the effect of biodiesel blend variations on the performance and exhaust emission characteristics of a diesel engine equipped with a Common-Rail Direct Injection (CRDI) system. The experimental tests were conducted using two types of fuel, namely B50 (50% biodiesel and 50% diesel) and B100 (pure biodiesel). The evaluated parameters included fuel consumption (FC), specific fuel consumption (SFC), and exhaust emissions consisting of CO, CO₂, NO, NOₓ, O₂, and SO₂. Tests were performed at three engine speeds (800, 1000, and 1500 rpm) and three electrical load levels (600 W, 1000 W, and 2000 W). The results showed that both FC and SFC increased with higher engine speed and load, where the average SFC of B100 was 5–15% higher than that of B50 due to the lower calorific value of biodiesel. In terms of emissions, the use of B100 reduced CO concentration by up to 10% compared to B50, while NOₓ emissions increased by approximately 15–25% at higher speeds. SO₂ emissions were recorded at 0 ppm under all test conditions, indicating that biodiesel is sulfur-free. These findings confirm that pure biodiesel can be effectively utilized in modern diesel engines with common-rail injection systems, providing good combustion efficiency and contributing to the reduction of exhaust gas emissions.
Co-Authors Aditya Bayu Pratama Aisyah , Nyayu Aisyah, Nyayu Aldi Prabowo Andhi Akhmad Ismail Andreas Surjaka Ispandriatno Anwari, Muhammad Arifianto, Rokhmat Ayu Putri Pratiwi, Ilham Bagaskara, Pagi Singgamata Bahari, Galuh Bahiuddin, Irfan Benidiktus Tulung Prayoga Budi Basuki Budi Basuki, Budi Delfian Prihadianto, Braam Dian Budi Santoso Djati, Isworo Fajri, Faridiah Aghadiati Galuh Bahari Gumilang, Theo Satria Hakim, Sinta Uri El Ignatius Aris Hendaryanto Ilham Ayu Putri Pratiwi Inggar Septhia Irawati Irawati, Inggar Septhia Ismail, Andhi Akhmad Isworo Djati Isworo Djati Jibril Maulana Kurniawan, Redho Lilik Dwi Setyana Mandala, Wirawan Widya Maulana, Arju Ridho Muhammad Fakhrurrifqi Nareswari Novita Satiti Nugraha, Sindhu Arya Nugroho Santoso Nugroho, Danuarta Adi Nur Esa, Suhada Nur Hidayatulloh, Fikhih Prabowo, Aldi Pramono, Yanuwar Ilpan Prasta, Silvano Virgio Prasta Pratama, Bagus Ardyansyah Ilham Pratiwi, Ilham Ayu Putri Prihadianto, Braam Delfian Purwanto , Sigit Rosyid, Fakih Aulia Satiti, Nareswari Novita Sena, Zhafran Huda Septhia Irawati, Inggar Setiawan, Widia Setiawan, Widia SETYAWAN, PENDI Silvano Virgio Prasta Prasta Sindhu Arya Nugraha SUGIYANTO Sugiyanto Sugiyanto - Sugiyanto Sugiyanto Sugiyanto Sugiyanto Suryo Darmo Suryo Darmo Wibowo, Tegar Taufik Wicaksono, Dimas Aryo Wijoyo, Joannes Bimo Winarto, Felik Eko Wismo Winarto, Felixianus Eko Wismo Wismo , F. Eko Yosephus Ardean Kurnianto Prayitno Yosephus Ardean Kurnianto Prayitno