Cylinder : Jurnal Ilmiah Teknik Mesin

Pengembangan Sistem Kendali Mekanis Mobile Robot Menggunakan Roda Caster

Christiand — 2024-10-29

A reliable control system is essential for the operation of a wheeled robot. A castor wheel is a robotic control device that enables the wheeled robot to navigate to various positions and orientations. One implementation method employs a servo motor to adjust the orientation of the castor wheel to a specific driving angle. The mechanism is robust, cost-effective, and simple to produce. This work demonstrates the development of a castor-wheel-based control mechanism utilizing a servo motor and the pure pursuit algorithm to determine the driving angle. The designated wheeled robot employs a BLDC motor as the primary actuator for its two main wheels. An experiment has been performed to assess the proposed control mechanism. The proposed control system achieved a position error of 0.228 m in the Y direction minimally and less than 1 m position error globally. This study presents mechanical, electrical, and software components.

Integration of Electric Drive Systems in ICE to EV Conversion: A GT-Suite Approach

Yosua Setiawan — 2024-10-29

This study was focus on converting internal combustion engine (ICE) vehicles to electric vehicles (EVs) using GT-Suite simulations, focusing on the integration of electric drive system. With increasing global CO₂ emissions, many nations aim to achieve carbon neutrality, making the shift to electrification crucial. While new battery electric vehicles (BEVs) produce significantly lower greenhouse gas (GHG) emissions, the high costs associated with new EV production remain a barrier to widespread adoption. Thus, converting existing ICE vehicles into EVs emerges as a more cost-effective and environmentally beneficial strategy. Using Toyota Avanza as a base model, replacing the ICE with a Synchronous AC motor and a LiFePO4 battery pack. Simulation results indicate competitive performance, with a 0-100 km/h acceleration time of 14 seconds, a top speed of 190 km/h, and an estimated driving range of 310 km. This study demonstrates that ICE-to-EV conversions can accelerate the transition to sustainable transportation.

Hygrothermal Effect on Glass Fiber Reinforced Plastic (GFRP) Under Seawater Immersion

Adrian Sutjiadi — 2024-10-29

Glass Fiber Reinforced Plastic (GFRP) is extensively used for corrugated roofing sheets and gutters in Indonesia, especially in corrosive environments, due to its superior corrosion resistance. Despite its widespread application in coastal areas, limited studies have examined the durability of GFRP when exposed to seawater and sunlight. This research investigates the influence of hygrothermal conditions on the physical and mechanical properties of GFRP. Samples were immersed in seawater at temperatures of 30°C, 40°C, and 60°C for 3 and 6 months. Results show that hygrothermal exposure leads to significant degradation in both physical and mechanical properties. Physical properties were evaluated using mass gain measurements, hardness testing, and Scanning Electron Microscopy (SEM), while mechanical properties were assessed via tensile testing.

Perancangan Sistem Filtrasi Air Berbasis Virtual Programmable Logic Controller (PLC) dan Human-Machine Interface (HMI)

Karel Octavianus Bachri — 2024-10-29

In the industrial environment, automation technology is becoming increasingly vital for boosting process efficiency and dependability. Water filtration is one of the most essential industrial uses. This study aims to evaluate the performance of PLC virtual control systems in regulating and managing water filtration processes, and HMI provides an intuitive graphical interface for operators to monitor and control processes. The simulation in this study employs the integrated Virtual PLC Codesys Virtual Win V3 and HMI Aveva Intouch software. Turbidity sensors are used to confirm the clarity of water after it has been filtered. The results of this study demonstrate that using the virtual control system, PLC and HMI, can facilitate the operation and monitoring of water filtration.

Integrasi PLTS pada Sistem Kelistrikan untuk Penyediaan Listrik di Desa Tanjung Kelumpang, Belitung Timur (Area Geosite Pantai Punai, Kawasan Geopark Belitung)

Sheila Tobing — 2024-10-29

This research was carried out by developing simulation scenario for the integration of solar power plant into the existing electricity system in Tanjung Kelumpang Village (Punai Beach Area, Belitung Geopark Global Network) with an electricity load pattern at the location in the amount of 24.000 kWh/ day using HOMER software. The simulation scenario prepared is integrating solar power plant with 30% of the existing diesel power plant capacity (the diesel power plant capacity entering the system is 540 kW) and the PLN electricity network. The simulation and optimization results show that integrating solar power plant with 30% of the existing diesel power plant capacity and the PLN electricity network produces the most optimal value, with the number of Levelized Cost of Electricity (LCOE) is Rp 1.173/ kWh and Net Present Cost (NPC) is Rp 1.788/ kWh. The integration of solar power plant into the existing electricity system of Tanjung Kelumpang village can be a solution for providing clean, environmentally friendly energy at competitive rates. The development direction of Bangka Belitung Province is currently experiencing a transition from mining based economy to sustainable tourism based economy. The integration of renewable energy generation from solar power plant in geosite area is considered to be able to create multiplier effects to achieve sustainable development goals in tourism sector. A number of methods must be encouraged and accelerated to achieve this, such as policy making, providing infrastructure, increasing human resource competency, cooperation and investment pattern, as well as active community involvement in the process.

Effective Solutions for Moving Objects in Acceleration Functions and Their Reflections Using Goen's Distance Formula

Stephanus Ivan Goenawan — 2024-10-29

Goen's distance formula is an effective formula for calculating the distance from acceleration that has a pattern as a symmetric function of time changes. In the Goen's distance formula where the acceleration function against time has a symmetric pattern, it can be solved simply by performing a total integral and then multiplying it by half of the total time. Symmetric acceleration functions can be constructed from a combination of certain functions with their reflections. In this study, the method of proving the Goen's distance formula is carried out mathematically using single and double-level average integrals of symmetric functions. The advantage of the Goen's distance formula compared to the conventional distance formula is that in finding the distance traveled by an object moving with a symmetric acceleration function, it will be more effective because it is sufficient to perform an integral once compared to having to do two integrals as done in the conventional method

Analisis Penyebab Kecacatan Dengan Menggunakan Metode Seven Tools Pada Proses Perakitan Mesin Sepeda Motor

Marten Darmawan — 2024-10-29

PT. SMT is a company that manufactures and distributes motorbikes. One of the main products assembled by PT. SMT is a 160 cc motorcycle engine. To improve the quality of the motorbike engine assembly process at PT. SMT, quality management based on the Seven Tools method has been performed. The check sheet analysis based on the production data from the January-July 2023 period shows that the most frequent quality issues in the engine assembly process are dirt on the cylinder inlet valve (64, 2%), followed by rust on the cylinder head (26.1%) and dirt on the gasket cover components for the cylinder head (9.8%). Root cause analysis using the Fishbone diagram finds that work environment factors including dirty workstations, equipment and components, as well as human factors are the main causes of product defects. From this analysis, the recommended improvements include implementing routine cleaning procedures for the work environment, equipment, and components, as well as providing additional training to improve operator competency and foster a better work culture.

Penerapan Data Driven Decision Making dalam Perspektif Pemilik dan Operator Kapal

Marsellinus Bachtiar Wahju — 2024-10-29

The maritime industry’s crucial role in the global economy is vital, serving as the lifeline for the distribution of commercial goods worldwide. Data-Driven Decision Making (DDDM) in the maritime sector has the potential to be a game changer. By utilizing data obtained from sensors, communication tools, and integrated systems, operators can optimize fleets, improve fuel efficiency, and enhance maintenance scheduling. From the perspective of ship owners/operators, decisions regarding scheduling, operations, docking, and crew management are prioritized to ensure company profitability. Current business practices necessitate exploring the benefits of using DDDM in decision-making for ship owners/operators. The use of Big Data and DDDM approaches offers advantages such as cost efficiency and improved fleet performance. Data collection and analysis in the maritime sector include various methods, such as Automatic Identification Systems (AIS), weather data, and onboard sensor equipment. Implementing DDDM presents several challenges from the perspective of ship owners/operators, including data quality and availability, system integration, high implementation costs, regulatory compliance, and resistance to change.