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All Journal Indonesian Journal of Electronics and Instrumentation Systems Jurnal Teknologi Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Jurnal Rekayasa Mesin Jurnal Teknik Mesin Indonesia Piston: Journal of Technical Engineering Journal of Community Empowerment for Health Journal of Mechanical Design and Testing (JMDT) Journal of Engineering and Technological Sciences Jurnal Teknologi dan Rekayasa Alat Berat (JTRAB)
Setyawan Bekti Wibowo
Department Of Mechanical Engineering, Vocational School, Universitas Gadjah Mada, Yogyakarta, Indonesia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Nursing Public Health

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Analisis Reverse Engineering L-Bracket dan Cross Member Pada Perisai Kolong Al Ihsan, Rozaan Faros; Pratama, Wisnu Bayu; Handoko, Handoko; Kurniawan, Wingky; Basuki, Budi; Wibowo, Setyawan Bekti
Journal of Mechanical Design and Testing Vol 7, No 1 (2025): Articles
Publisher : Department of Mechanical and Industrial Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jmdt.85959

Abstract

Komponen perisai kolong (side guard) pada truk komersial, merupakan komponen baru yang wajib harus dimiliki oleh truk yang beroperasi di Indonesia. Kewajiban ini harus dipenuhi oleh truk komersial, dan tercantum pada Peraturan Menteri Perhubungan Republik Indonesia nomor 74 Tahun 2021 tentang perlengkapan keselamatan kendaraan bermotor. Peraturan tersebut dilatarbelakangi oleh banyaknya kecelakaan tabrak kolong (Underride) yang terjadi. Side guard wajib dimiliki oleh seluruh kendaraan komersial dan terpasang dari perusahaan pembuat sampai dengan karoseri sebagai safety dan regulasi. Side guard dari perusahaan pembuat nantinya tidak digunakan kembali setelah kendaraan sampai karoseri. Perusahaan terkait mengeluarkan biaya yang tinggi untuk membuat side guard untuk komponen bracket dan crossmember. Maka dalam penelitian ini akan dilakukan optimalisasi desain bracket dan cross member sebagai komponen utama penyusun rangkaian komponen side guard untuk mengurangi biaya produksi. Optimasi desain akan dilakukan menggunakan metode analisis reverse engineering, metode analisis CAE (Computer Aided Engineering) dengan bantuan software CATIA, dan analisis cost reduction untuk melihat cost down yang terjadi. Pada penelitian ini akan menggunakan metode penelitian kualitatif dan kuantitatif pada pembahasan analisis CAE. Hasil penelitian dari aktual cases ini didapatkan desain baru hasil optimasi pada L-bracket, pengurangan thickness pada L-bracket dan cross member, hasil analisis CAE pada single part (L-bracket dan cross member) dan assembly part (ROH (Rear Overhang) dan Wheelbase Assy), dan cost down yang didapatkan dari hasil optimasi desain. Setelah dilakukan penelitian dan pembahasan maka disimpulkan bahwa optimasi desain yang dilakukan dapat memangkas biaya produksi perisai kolong sebesar 54,7% pada cross member. Pada L-bracket nomor 1 mengalami cost down sebesar 52,7%. Kemudian, pada L-bracket nomor 2 mengalami cost down sebesar 48,3%. Secara keseluruhan dari hasil penelitian ini dapat diimplementasikan atau referensi implementasi pada rangkaian side guard.
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.
Perancangan Sistem Hidrolik Mesin Press Sampah Plastik Tipe Vertikal Kapasitas 1000 Kg Sanjaya, Antonius David; Sugiyanto, Sugiyanto; Siswantoro, Soeadgihardo; Wibowo, Setyawan Bekti
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.v1i2.11792

Abstract

Waste is an ongoing environmental issue, escalating with the increasing human population on Earth. Plastic waste, commonly found in Temporary Storage Places (TPS) for waste, poses a significant concern. In the Condongcatur area, one TPS produces waste with a daily volume of 1022 m3, consisting of 52% plastic waste. The percentage of plastic waste can be calculated using the density of PET at 1.35 gr/cm3, resulting in a daily mass of approximately 717 kg. To solve this problem, a vertical hydraulic press machine with a capacity of 1000 kg has been designed. The 1000 kg capacity press machine utilizes a hydraulic cylinder with CHSG (SMC) specifications, featuring a bore diameter of 40 mm, rod diameter of 22 mm, and an 800 mm stroke. The calculated working pressure is 93 bar, necessitating a hydraulic pump with a capacity of 6.62 CC/REV, a hydraulic motor with a power capacity of 1.5 KW or 2 HP, and a full load speed of 1400 rpm. The required hydraulic tank capacity is a minimum of 8 liters, ensuring the smooth operation of the entire system. This press machine effectively compacts plastic waste, saving space, and facilitating the recycling process.
Sistem Integrasi (ISO 50001) Dengan Kombinasi Chi-Square Test Untuk Analisis Manajemen Penggunaan Energi Operasional Alat Berat Pada Perusahaan Terminal Pelabuhan Ramadhana, Ridho Rizky; Prayitno, Yosephus Ardean Kurnianto; Irfan Bahiuddin; Setyawan Bekti Wibowo; Sugiyanto
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.v2i2.14637

Abstract

Port terminal companies play an important role in the growth of international trade, with more than 85% of global cargo traffic transported via sea routes and ports. As international trade continues to grow in line with the increasing use of energy, it is necessary to implement energy management strategies to maximize energy utilization. An analysis of the energy management maturity level of a port terminal company based on ISO 50001, combined with a Chi-square test, was carried out to evaluate the actual use of fuel oil (BBM) in equipment. The results showed a maturity level value of ≥ 4 and a significant value in the Chi-square test, indicating an ideal condition for energy management in industrial companies. On the other hand, there is a fluctuating trend in the actual fuel oil usage ratio. This indicates that the company needs to regularly evaluate the alignment between managerial policy-making and actual field data, enabling the company to promptly address any deficiencies occurring on site.
Aerodynamic Performance and Noise Characteristics of Modified Blade Tip of Small HAWT Iswahyudi, Sigit; Wibowo, Setyawan Bekti; Suyitno, Suyitno; Suprihanto, Agus
Journal of Engineering and Technological Sciences Vol. 56 No. 5 (2024)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2024.56.5.8

Abstract

The planform design of a wind turbine blade influences its aerodynamic performance and noise characteristics, with the tip shape controlling vortex shedding, power, and noise. This study examined the tip shape’s effect on a small horizontal-axis wind turbine (HAWT). Field tests were conducted on three rotors: one with straight blades, one with low swept angle (12° and 61° sweep, 15° anhedral) blades, and one with high swept angle (32° and 72° sweep, 15° anhedral) blades. All had three blades, a tip speed ratio (TSR) of 5.24, and an NACA 4412 cross-section. The basic blade rotor and the modified blade 1 rotor had a 2.1 m diameter, while the modified blade 2 rotor had a 2.8 m diameter. The modified blades had revised tips along 10% of the radius. The results showed maximum power coefficients of 0.25, 0.2, and 0.15 for the basic blade, modified blade 1, and modified blade 2, respectively. modified blade 2 exhibited the best starting behavior, needing only 1 m/s wind speed. It also reduced low-frequency noise while increasing high-frequency noise, which is more effectively absorbed by the atmosphere. The swept blade tips lowered power performance but improved start-up and reduced low-frequency noise
Optimalisasi Aliran Udara Pada Gedung Assembly Line 2 PT Astra Daihatsu Motor dengan Metode Computational Fluid Dynamic Saputro, Sahid Alvin; Wibowo, Setyawan Bekti; Andriansyah, Deva
Piston: Journal of Technical Engineering Vol. 8 No. 1 (2024)
Publisher : Program Studi Teknik Mesin Universitas Pamulang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32493/pjte.v8i1.41114

Abstract

Lingkungan kerja yang nyaman dan aman menjadi fokus perusahaan untuk meningkatkan produktivitas dan meningkatkan kenyamanan karyawan. Salah satu tantangan yang dihadapi adalah temperatur tinggi mencapai rata-rata 33,435°C dengan kecepatan udara rata-rata 0,833m/s di Gedung Departemen Assembly Line 2 PT Astra Daihatsu Motor. Hal ini disebabkan oleh aliran udara yang tidak merata dan kurangnya sistem pendinginan. Penelitian ini bertujuan untuk mengatasi masalah tersebut dengan mengoptimalkan aliran udara menggunakan metode simulasi Computational Fluid Dynamics (CFD). Simulasi dilakukan dengan merancang beberapa alternatif layout dan penambahan big fan untuk mendapatkan solusi yang paling efektif dan optimal. Hasil optimalisasi menunjukan bahwa perubahan layout dan penambahan big fan terbukti mempengaruhi distribusi udara di dalam ruang produksi menjadi lebih merata serta menurunkan temperatur. Hasil penurunan temperatur menjadi rata-rata 32,659°C dan peningkatan kecepatan udara rata-rata 1,614 m/s.
Co-Authors Abdul Majid Adrianus Prima Manggala Agus Suprihanto Al Ihsan, Rozaan Faros Ali Akbar Farghani Andriansyah, Deva Bahiuddin, Irfan Budi Basuki, Budi Dwi Aris Agung Nugrahaningsih Dwitiya Bagus Widyantara Handoko Handoko Harjono Harjono Hera Nirwati Hidayah, Nurulia Hujja, Roghib Muhammad Kurniawan, Muhammad Prasetya Kurniawan, Wingky Larasati, Errika Anggraini Mahardini Gunawan, Citra Aulia Mahatma Sotya Bawono Nurramdhana, Almaira Daffa Octaviani, Danis Syalwa Praja Sapta Ardiantara Pratama, Wisnu Bayu Prayitno, Yosephus Ardean Kurnianto Prihadianto, Braam Delfian Putra, Arya Pratama Rachman, Atika Yulia Raden Sumiharto Raden Sumiharto Ramadhana, Ridho Rizky Sanjaya, Antonius David Santoso, Probo Saputro, Sahid Alvin Sigit Iswahyudi Siswanto Siswanto Soeadgihardo Siswantoro SUGIYANTO Sugiyanto - Suyitno Suyitno Titien Budhiaty Widada, Reza Ananda