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All Journal Jurnal Rekayasa Mesin Infotekmesin Mekanika: Majalah Ilmiah Mekanika Multidisciplinary Innovations and Research in Applied Engineering
Lutanto, Agus
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Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Recent Advancements in Ocean Current Turbine Blade Design: A Review of Geometrical Shape, Performance and Potential Development using CAE Fajri, Aprianur; Jurkovič, Martin; Kandimba, Enock Michael; Lutanto, Agus; Falah, Fajrul; Adiputra, Ristiyanto; Firdaus, Nurman
Mekanika: Majalah Ilmiah Mekanika Vol 23, No 2 (2024): MEKANIKA : Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v23i2.87374

Abstract

The global energy demand is experiencing a significant surge, reaching 442 exajoules in 2023. The urgency to develop renewable energy sources intensifies as global energy needs continue to escalate, coupled with the detrimental impact of fossil fuel consumption on climate change. Ocean current energy has emerged as a promising renewable energy source due to its predictability and minimal environmental impact. However, the efficiency and reliability of Ocean Current Turbines (OCTs) depend highly on their blades' design and performance. This review provides a comprehensive overview of recent advancements in ocean current and tidal current turbine blade design and the challenges and issues associated with their operation and maintenance. The paper discusses various design aspects, including blade geometry, material selection, hydrodynamic performance optimization, and bio-inspired designs. Additionally, it highlights the common failures and degradation mechanisms of turbine blades, such as fatigue, erosion, and cavitation. Furthermore, the review explores the challenges faced in developing and deploying OCTs, such as improved blade durability, cost-effectiveness, and environmental compatibility.
Integrating Automatic Arm Lifting Systems to Minimize Wire Broom Damage in Electric Road Sweepers Sakarinto, Wikan; Maula, Mohamad Izzur; Lutanto, Agus; Falah, Fajrul; Prihtiantoro, Dedhy; Djati, Isworo; Sugiyanto, Sugiyanto
Jurnal Rekayasa Mesin Vol. 19 No. 3 (2024): Volume 19, Nomor 3, Desember 2024
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v19i3.5963

Abstract

Electric road sweepers often face damage to wire broom components due to manual operation errors, particularly when navigating obstacles like speed bumps. To mitigate this, an automatic arm lifting system using proximity sensors was developed to enhance efficiency and extend broom lifespan. This study focused on designing the wiring, determining optimal sensor detection distances, and assessing sensor angle inclinations for an electric road sweeper prototype. Functional testing determined that Sensor A should be placed 60 cm from the wire broom with a tilt angle of 42.2Ëš, a distance of 2936 mm to the ground, and 2800 mm to the object for lifting commands. For Sensor B, the lowering command requires a tilt angle of 49.4Ëš, a distance of 20 cm from the wire broom, 2692 mm to the ground, and 2200 mm to the object. These settings ensure the system effectively lifts the sweeper arm over obstacles, enhancing both efficiency and durability. The findings demonstrate the potential for advanced sensor technology to improve urban cleaning equipment and support sustainable city maintenance practices.
Pendekatan Quality Function Deployment dengan House of Quality untuk Menganalisis Mutu Produk: Studi Kasus Radiator Cover Merek ARM Lutanto, Agus; Sakarinto, Wikan; Maula, Mohamad Izzur; Nugroho, Kacuk Cikal; Hilmy, Fuad
Jurnal Rekayasa Mesin Vol. 20 No. 1 (2025): Volume 20, Nomor 1, April 2025
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v20i1.6198

Abstract

Persaingan di industri otomotif menuntut peningkatan kualitas produk untuk memenuhi kebutuhan pelanggan.Penelitian ini menganalisis kualitas radiator cover merek ARM dengan pendekatan Quality Function Deployment(QFD) dan House of Quality (HoQ). Data diperoleh melalui survei terhadap 30 konsumen yang telah menggunakanproduk selama lebih dari enam bulan, serta wawancara dengan produsen dari divisi research and development (R&D)dan produksi. Matriks HoQ digunakan untuk menerjemahkan kebutuhan pelanggan menjadi spesifikasi teknis produk.Hasil penelitian menunjukkan bahwa desain produk (19%), material berkualitas (16%), variasi warna (16%), dankeseimbangan harga-kualitas (16%) merupakan prioritas utama dalam pengembangan produk. Dibandingkan dengankompetitor, produk ARM menunjukkan keunggulan dalam aspek desain dan kualitas material. Penelitian inimemberikan rekomendasi strategis bagi produsen untuk mengembangkan produk secara berkelanjutan yang lebihsesuai dengan kebutuhan pasar, serta memperkuat posisi kompetitifnya di industri otomotif nasional
Prediksi dan Validasi Porositas Kipas Aluminium Hasil Pengecoran Dengan Simulasi dan Eksperimen Berbasis Finite Difference Method Dedhy Prihtiantoro; Lutanto, Agus
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2806

Abstract

Porosity is a common defect in the aluminum casting process, particularly in thin-walled components such as compressor fans. This study aims to predict and validate porosity in cast aluminum fan components using a combined simulation and experimental approach. The simulation was conducted using the Finite Difference Method (FDM) with the aid of SOLIDCast and FLOWCast software to evaluate molten metal distribution, Niyama criterion, and solidification time. The experimental casting was carried out using silica sand molds and Aluminum A319 alloy, followed by metallographic analysis under an optical microscope. The results show a strong correlation between the simulation predictions and experimental findings, especially in the identification of microporosity, gas porosity, and localized shrinkage. This approach has proven effective in improving casting quality and can serve as a reference for optimizing gating system design.
Advancements in Automotive Braking Technology for Enhanced Safety: A Review Lutanto, Agus; Fajri, Aprianur; Cikal Nugroho, Kacuk; Falah, Fajrul
Multidisciplinary Innovations and Research in Applied Engineering Vol. 1 No. 1 (2024)
Publisher : Akademi Inovasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70935/6n21wx31

Abstract

This research explores advancements in braking technology with a focus on enhancing vehicle safety. The topic was chosen due to the critical importance of literature connecting braking technology developments to safety levels. The method employed was a comprehensive review of current literature concerning types and advancements in braking technologies, particularly in automotive vehicles. Analysis indicates that integrating modern braking technologies can significantly enhance driving safety and comfort, although challenges related to costs and maintenance need further attention. Further studies are recommended to optimize the future implementation of these technologies.
Performance and Emission Analysis of Motorcycles Using Pertalite-Methanol Fuel Blends Lutanto, Agus; M. Burhan Rubai Wijaya; Hadromi
Multidisciplinary Innovations and Research in Applied Engineering Vol. 2 No. 1 (2025)
Publisher : Akademi Inovasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70935/vv71xa86

Abstract

The increasing use of motorcycles necessitates the development of more efficient and environmentally friendly fuel alternatives. This study examines the effect of mixing methanol with pertalite fuel on engine performance and exhaust emissions in carburetor motorcycles. The fuel variations tested include M0, M5, M10, M15, M20, and M25. Performance testing was conducted using a dynotest, while exhaust emissions were measured with an emission gas analyzer. The results indicate that M25 produces the highest torque and power output, particularly in the 2500–8500 rpm range. Additionally, M25 significantly reduces HC and CO emissions, with HC at 108.33 ppm vol and CO at 0.19% vol, compared to M0. The findings suggest that methanol-enhanced fuel improves combustion efficiency, enhances engine performance, and lowers emissions. Thus, methanol-pertalite blends offer a promising alternative for improving carburetor motorcycle performance while reducing environmental impact.
Co-Authors Adiputra, Ristiyanto Cikal Nugroho, Kacuk Dedhy Prihtiantoro Djati, Isworo Fajri, Aprianur Falah, Fajrul Firdaus, Nurman Fuad Hilmy Hadromi Jurkovič, Martin Kandimba, Enock Michael M. Burhan Rubai Wijaya Mohamad Izzur Maula Nugroho, Kacuk Cikal Prihtiantoro, Dedhy Sugiyanto - Wikan Sakarinto