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INDONESIA
Cylinder : Jurnal Ilmiah Teknik Mesin
Published by Universitas Katolik Indonesia Atma Jaya
ISSN : 2252925X     EISSN : 30469821     DOI : https://doi.org/10.25170/cylinder
Core Subject : Science, Engineering,
Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering
Cylinder: Jurnal Ilmiah Teknik Mesin is an open-access peer reviewed journal that aims to publish original articles on research and development in the field of engineering and applied science. Topics of interest include, but are not limited to: - Renewable Energy & Thermofluids - Material & Manufacturing - Mechatronics, Robotics, & Optoelectronics - Mechanical Design & Mechanism - Industrial Engineering & Ergonomics - Automotive Engineering - Environmental Engineering
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 7 Documents
 1 
Search results for , issue "Vol 11 No 1 (2025): April 2025" : 7 Documents clear
PEMANTAUAN DAN PENGENDALIAN SUHU DAN KELEMBAPAN UDARA UNTUK TANAMAN TOMAT DENGAN MENGGUNAKAN WEMOS D1 Wijaya, Toby; Ghozali, Theresia; Bachri, Karel Octavianus
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 11 No 1 (2025): April 2025
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v11i1.6190

Abstract

Plant cultivation process is an important component in creating optimal harvest results. Those results can be affected by both air temperature and humidity in the plant’s environment. Traditional method for monitoring and controlling temperature and humidity consume a lot of time and energy. This Wemos D1 and ThingSpeak equipped monitoring and controlling system was made in order to make those works easier. The system uses air temperature and humidity sensor which will perform reading to the environment’s condition. Datas collected from the reading progress will be forwarded by Wemos D1 to ThingSpeak so it can be observed by users. Exhaust fan and mist maker will be used as controlling components for the environment. This system is expected to help in developing plant cultivation techniques.
Kebutuhan Banyaknya Titik Roof Outlet Pada Sistem Pemipaan Fardhillah Adam Pratama; Fardhillah Adam
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 11 No 1 (2025): April 2025
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v11i1.6462

Abstract

The JST 01 Data Center development project is located on Jl. Bidara Cina in the Jatinegara District, East Jakarta, DKI Jakarta. The MT. Haryono Data Center stands at an elevation of 65 meters above sea level and comprises 14 floors, divided into two work areas: Gantry and IX. Rainfall at the JST 01 Data Center project site is recorded at 318.5 mm/h, based on data processed from BMKG Kemayoran, Cengkareng, and Pondok Betung stations. The analysis follows the Singapore Standard SS 525-2006 Code of Practice for Roof Drainage. The building's total roof area is 2,128.43 m², necessitating 14 Roof Outlet points for the operation of the Siphonic Rainwater System. Of these, five Roof Outlets are allocated to the Gantry area, while nine are distributed across the IX area.
Rancang Bangun Alat Uji Kekuatan Material Polimer dan Komposit Polimer Berpenguat Serat Alam Manalu, Ferry Rippun G; Basuki, Widodo Widjaja
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 11 No 1 (2025): April 2025
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v11i1.6648

Abstract

Current engineering technology places great emphasis on efficient and energy-saving construction. Nowadays, research and development of engineering materials are more directed at relatively strong, stable and lightweight materials. Polymers and natural fiber reinforced polymer composites are one of those that can meet these needs and are being researched. To achieve optimal results, the research must be supported by appropriate test equipment that can properly characterize the materials being developed. This research aims to design a mechanical and electrical tensile testing device especially for polymers and polymer composites. The research produced a prototype of a tensile testing device that has a maximum load capacity of 20.25 kN. The success of this research is proven by the strength of PMMA, which was tested using this device. The test results showed that PMMA has a tensile strength of about 58.2 and 60.7 MPa. This value is within the range of PMMA strength obtained from the literature.
Adopsi Kecerdasan Buatan (AI) dalam Industri Maritim: Peluang, Tantangan, dan Implikasinya terhadap Efisiensi Operasional Wahju, Marsellinus Bachtiar; Bachtiar , Marsellinus
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 11 No 1 (2025): April 2025
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v11i1.6654

Abstract

This paper discusses the adoption of Artificial Intelligence (AI) in Indonesia's maritime industry, focusing on port operational efficiency. Using literature review and case analysis approaches, the study identifies port business processes, key stakeholders, and digital systems such as INAPORTNET, CEISA, TOS, VMS, Auto Gate, and STID. The readiness of AI adoption at Tanjung Priok Port is assessed based on indicators including technological infrastructure, operational automation, system integration, human resource competence, operational efficiency, and environmental impact. Findings indicate that while digitalization initiatives are ongoing, AI implementation remains at an early stage. Opportunities lie in productivity, safety, and sustainability improvements, while key challenges include digital infrastructure limitations, system integration issues, regulatory gaps, and human resource constraints. The paper concludes that a phased and collaborative strategy among the government, port operators, and industry players is essential to accelerate AI-driven digital transformation in the maritime sector.
Integrasi Transmisi Otomatis Untuk Kendaraan Listrik yang Dikonversi: Pendekatan GT-Suite Setiawan, Yosua; Said, Mohd Farid bin Muhamad
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 11 No 1 (2025): April 2025
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v11i1.6661

Abstract

The growing adoption of electric vehicles (EVs) in Southeast Asia, particularly in Indonesia and Malaysia, is driven by policy incentives such as road tax exemptions and relaxed traffic restrictions. This study investigates the feasibility and performance impact of integrating a stock automatic transmission into a converted internal combustion engine (ICE) vehicle, replacing the commonly used single gear or manual transmissions in typical EV conversions. Using GT-Suite simulation software, a detailed model of a converted Toyota Avanza was developed to evaluate key performance metrics including acceleration, top speed, driving range, and energy consumption. Simulation results indicate that integrating an automatic transmission improves acceleration performance, reducing the 0–100 km/h time by 0.7 seconds compared to a single-gear configuration. Although the top speed is mechanically limited by the transmission's maximum input speed, the vehicle achieved a marginally higher top speed (191.3 km/h) and reached it 1.8 seconds faster. During range simulations under the New European Driving Cycle (NEDC) and constant highway driving at 100 km/h, the automatic transmission variant demonstrated a longer driving range—up to 7% farther—while also improving energy consumption from 8.55 km/kWh to 8.77 km/kWh.
Robot Self-Balancing Berbasis LEGO Mindstorm EV3 Untuk Pembelajaran Robotika Christiand, Christiand; Kenny, Adrian; Christiand; Kurniawan, Riccy
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 11 No 1 (2025): April 2025
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v11i1.6675

Abstract

Robotics education must be implemented effectively to develop students' conceptual understanding and technical competencies. One relevant approach involves the development of self-balancing robots as an exemplary platform that facilitates learning in mechanical design, control systems, and sensor programming. The success of this approach critically depends on the appropriate selection of both tools and methodologies. The LEGO Mindstorms EV3 platform is an ideal tool due to its assembly convenience, design flexibility, and seamless hardware-software integration for robotic development. Implementing a LEGO Mindstorms EV3-based self-balancing robot provides valuable learning opportunities in robotic control algorithms utilizing gyroscopic sensors, ultrasonic sensors, and servo motors. This research work presents the design and implementation process of a LEGO Mindstorms EV3-based self-balancing robot as an innovative educational tool for robotics. The platform supports integrated mastery of theoretical concepts and technical skills, fostering comprehensive engineering and control systems learning.
Perilaku Termal Baterai Kendaraan Listrik pada Siklus Mengemudi NEDC dan WLTP: Studi Simulasi Menggunakan GT-Suite Said, Mohd Farid bin Muhamad; Sutjiadi, Adrian; Setiawan, Yosua
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 11 No 1 (2025): April 2025
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v11i1.6678

Abstract

This study examines the thermal behaviour of a LiFePO₄ battery pack in a converted electric vehicle using GT-Suite simulation. The base vehicle, a Toyota Avanza originally powered by a 1.3-litre engine, was retrofitted with a 60 kW synchronous AC motor and a 268.8 V, 40.32 kWh battery pack. Simulations were conducted under NEDC and WLTP driving cycles, both with and without passive cooling. Results showed that battery temperature peaked at 45.3°C (NEDC) and 71.6°C (WLTP) without cooling, and was reduced to 36.6°C and 48.0°C respectively with passive cooling. Temperature spikes coincided with rapid acceleration and high-speed phases, highlighting the influence of discharge current on battery heating. These findings demonstrate the importance of thermal management in EV conversions and the effectiveness of passive cooling. Future work will focus on experimental validation and discharge current control via a battery management system (BMS) to ensure battery safety and longevity.

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