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Teng Sutrisno
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Gedung P lantai 5, Universitas Kristen Petra Jl. Siwalankerto 121-131, Surabaya, Jawa Timur 60236, Indonesia.
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INDONESIA
Jurnal Teknik Mesin
Published by Universitas Kristen Petra Surabaya
ISSN : 14109867     EISSN : 26563290     DOI : https://doi.org/10.9744/jtm
Core Subject : Science, Engineering,
Aerospace Engineering Automotive Engineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Teknik Mesin (JTM) merupakan Jurnal Keilmuan dan Terapan Teknik Mesin yang dikelola oleh Program Studi Teknik Mesin, Fakultas Teknologi Industri, Universitas Kristen Petra. JTM terbit pertama pada April 1999. JTM telah mendapatkan akreditasi Jurnal Nasional oleh Dirjen Dikti Depdiknas dengan SK-Nomor: 02/Dikti/Kep/2002, SK-Nomor :43/DIKTI/Kep/2008. JTM diterbitkan setiap bulan April dan Oktober. Tujuan penerbitan jurnal ini antara lain adalah untuk: Menyebarluaskan pengetahuan, pengalaman/terapan dan temuan baru para ilmuwan atau praktisi di bidang teknik mesin. Meningkatkan motivasi para ilmuwan dan praktisi untuk melakukan penelitian dan pengembangan ilmu di bidang teknik mesin
Arjuna Subject : Energi (semua kategori) - Energi (Lain-Lain)
Articles 295 Documents
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Bioethanol Characteristics of Musa Paradisiaca Artocarpus Peel Muhaji Muhaji; I Made Arsana; Belina Yunitasari
Jurnal Teknik Mesin (Sinta 3) Vol. 22 No. 1 (2025): APRIL 2025 (SINTA 3)
Publisher : Institute of Research and Community Outreach, Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jtm.22.1.39-50

Abstract

The objectives of this research are to analyze the chemical and physical properties of bioethanol as well as production costs. Data were collected using experimental methods. The raw material, musa paradisiaca artocarpus Peel, was processed through saccharification, fermentation, and distillation. The experiment used 500 grams of peel, 25 grams of yeast, and 20 grams of urea, with fermentation lasting four days and five-stage distillation conducted at 78°C, utilizing pumice stone adsorbent with a 70-mesh size. Chemical properties of the bioethanol were tested using ASTM standards: ethanol content (D5501), methanol content (D5501), water content (D1744), copper (D1688), acidity (D1613), chloride (D512), sulfur (D2622), and gum content (D381). Physical properties were tested using ASTM standards: density (D1298), kinematic viscosity (D445), flash point (D93), heating value (D240), boil point (D2892), pH (D6423), and octane number (D976). The results of the chemical property analysis showed that the bioethanol contained 99.65%-v ethanol, 0.02% methanol, 0.01% water, 0.02 mg/kg copper, 19 mg/l acidity, 16.75 mg/l chloride, 0.01 mg/l sulfur, and 1.02 mg/100 ml gum. The physical property analysis results revealed a density of 0.787 g/cm³, kinematic viscosity of 1.28 cSt, flash point of 18°C, boiling point of 78°C, heating value of 6985 kcal/kg, pH of 6.9, and an octane number of 107. Production costs for producing 1 litre bioethanol from musa paradisiaca artocarpus Peel with 99.65%-v ethanol content costs Rp.47,782,. Overall, this bioethanol offers excellent performance and environmental benefits, making it a viable alternative to as a substitute or a mixture of gasoline fuels.
Pengembangan Quality Function Deployment dengan Model Optimasi Multi-Kriteria I Nyoman Sutapa; Magdalena Wullur; Mohammad Sukri Bin Mustapa
Jurnal Teknik Mesin (Sinta 3) Vol. 22 No. 1 (2025): APRIL 2025 (SINTA 3)
Publisher : Institute of Research and Community Outreach, Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jtm.22.1.19-29

Abstract

Dalam upaya meningkatkan kepuasan pelanggan, proses desain produk harus secara efektif mampu menangkap dan menerjemahkan harapan dan kebutuhan pelanggan. Quality Function Deployment (QFD) adalah metode yang sering digunakan untuk membantu proses ini, tetapi implementasi QFD konvensional terkadang tidak optimal dalam mengakomodasi berbagai kriteria keputusan yang kompleks. Oleh karena itu, penggunaan metode Multi Criteria Decision Making (MCDM) seperti Analytic Hierarchy Process (AHP), VlseKriterijumska Optimizacija I Kompromisno Resenje (VIKOR), dan Decision Making Trial and Evaluation Laboratory (DEMATEL) penting untuk meningkatkan efektivitas analisis QFD. AHP digunakan untuk memprioritaskan kebutuhan pelanggan berdasarkan minat relatif, sedangkan VIKOR membantu dalam menentukan solusi kompromi terbaik antara beberapa alternatif desain. DEMATEL, di sisi lain, memetakan hubungan sebab-akibat antara berbagai kriteria desain atau persyaratan teknis, sehingga membantu memahami interaksi yang lebih dalam dalam elemen desain. Kombinasi ketiga metode ini memungkinkan desainer produk untuk lebih tepat dalam menangkap ekspektasi pelanggan, sekaligus memberikan solusi desain yang optimal bagi produsen, baik dari segi kualitas, biaya, maupun efisiensi.
Review of Carbon Fiber Based on Physical and Mechanical Properties in Vehicle Frame Hafidz Salafuddin; Muhamad Fitri
Jurnal Teknik Mesin (Sinta 3) Vol. 22 No. 1 (2025): APRIL 2025 (SINTA 3)
Publisher : Institute of Research and Community Outreach, Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jtm.22.1.10-18

Abstract

This research aims to assess carbon fibre's physical and mechanical properties and potential use to improve vehicle efficiency. The main focus is to reduce vehicle weight, improve fuel efficiency, and lower carbon emissions. Carbon fibre has a tensile strength of more than 6 GPa, a modulus of elasticity of more than 600 GPa, and a density of 1.8-2.0 g/cm³. Its use in vehicles can reduce weight by 86%, improve fuel efficiency by 20%, and significantly reduce carbon emissions. The carbon fibre sandwich composite structure with an aluminium honeycomb core increases strength and reduces weight by 36%. Carbon fibre also improves the vehicle's rollover resistance by 64% and energy absorption by 60%. However, high manufacturing costs are a major challenge, with precursor materials such as polyacrylonitrile (PAN) accounting for about 50% of the cost. Biomass-based alternatives, such as lignin and agricultural waste, can reduce costs, although they require further development. Research shows that integrating recycled carbon fibre in metal-polymer hybrid structures can reduce vehicle weight by 48% and improve structural performance. This research emphasizes the importance of manufacturing innovation and the exploration of alternative materials to maximize the utilization of carbon fibre.
Perancangan Robot Serial Manipulator 6DoF dengan Sistem Transmisi Kabel pada 3 Joint Terakhir Ivan Christian Hernando; Roche Alimin; Edwin Manat; Melvin Emil Simanjuntak; Joseph Wicaksono Tandio
Jurnal Teknik Mesin (Sinta 3) Vol. 22 No. 1 (2025): APRIL 2025 (SINTA 3)
Publisher : Institute of Research and Community Outreach, Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jtm.22.1.30-38

Abstract

Perkembangan teknologi robotika, khususnya robot serial manipulator 6-axis, telah memberikan dampak signifikan dalam industri manufaktur dan otomasi. Penelitian ini mengusulkan penggunaan sistem transmisi kabel pada tiga sumbu terakhir robot serial manipulator 6-axis untuk mengurangi berat dan meningkatkan efisiensi pergerakan. Sistem transmisi kabel memiliki keunggulan dibandingkan dengan sistem rigid-link konvensional, termasuk bobot yang lebih ringan, konsumsi daya yang lebih rendah, dan fleksibilitas yang lebih tinggi. Namun, tantangan utama terletak pada kontrol ketegangan kabel dan presisi pergerakan. Penelitian ini melibatkan perancangan dan pembuatan prototipe robot menggunakan perangkat lunak 3D desain dan 3D printing, diikuti dengan pemrograman dan kalibrasi robot menggunakan perangkat lunak ACRS. Hasil penelitian menunjukkan bahwa penggunaan transmisi kabel pada robot 6-axis dapat meningkatkan fleksibilitas desain dan mengurangi beban pada joint robot. Meskipun demikian, penggunaan kabel juga menimbulkan tantangan dalam hal kontrol presisi, serta keterbatasan material filamen PLA+ yang digunakan dalam pembuatan komponen robot. Penelitian ini diharapkan dapat memberikan kontribusi dalam pengembangan robot manipulator yang lebih efisien dan fleksibel untuk aplikasi industri.
Cover, Hal Redaksi, Daftar Isi Jurnal Teknik Mesin
Jurnal Teknik Mesin (Sinta 3) Vol. 22 No. 1 (2025): APRIL 2025 (SINTA 3)
Publisher : Institute of Research and Community Outreach, Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

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Page 30 of 30 | Total Record : 295

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