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All Journal Mechatronics, Electrical Power, and Vehicular Technology Sinergi Jurnal Ilmiah Teknik Industri International Journal of Innovation in Mechanical Engineering and Advanced Materials Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Journal of Applied Science and Advanced Engineering
Henry Nasution
Automotive Development Centre, Universiti Teknologi Malaysia Skudai, Johor, Malaysia 81310
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Optimizing Condition Based Maintenance for Assessing Failure Indicators in Heavy Equipment Components Werdaya, Najih M.S.; Hendriana, Dena; Nasution, Henry
Journal of Applied Science and Advanced Engineering Vol. 3 No. 1 (2025): JASAE: March 2025
Publisher : Master Program in Mechanical Engineering, Gunadarma University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59097/jasae.v3i1.43

Abstract

The coal industry remains attractive business, making heavy equipment quite essential for efficient coal mining operations. Effective maintenance of this equipment is crucial for maintaining performance, as breakdowns and component failures can lead to significant losses and disrupt mining activities. To mitigate these risks, this study focuses on optimizing Condition-Based Maintenance (CBM) to better identify and reduce component failures. To optimize CBM, especially in assessing component health, an index has been developed to represent component condition. Fifteen parameters are used to determine the health of Komatsu HD785-7 engine components. Each parameter plays a distinct role and carries a different weight in identifying failure indicators for the components. The determination of these weights requires operational analysis approach to achieve optimal values. The index used to represent engine component health is called the Condition Monitoring Index (CMI). Through rigorous monitoring and evaluation, the incidence of unscheduled overhauls can be significantly reduced. The CMI can serve as a guide for determining subsequent proactive maintenance actions. Continuous monitoring and evaluation are essential for detecting early engine component failures.
ENHANCING SPARE PARTS SALES BY IMPROVED CUSTOMER SERVICE LEVELS MEASURED BY OTIF (ON-TIME IN-FULL) THROUGH NEW SUPPORT POINTS AND SUPPLY CHAIN DISTRIBUTION DESIGN: A CASE STUDY AT PT XYZ MEDAN BRANCH Sandjaja, Edwin; Panjaitan, Togar Wiliater Soaloon; Nasution, Henry
Jurnal Ilmiah Teknik Industri Vol. 12 No. 3 (2024): Jurnal Ilmiah Teknik Industri : Jurnal Keilmuan Teknik dan Manajemen Industri
Publisher : Program Studi Teknik Industri, Fakultas Teknik Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jitiuntar.v12i3.32777

Abstract

It was found that there are no support points at PT XYZ's Martabe Site, which led to a problem with customer service levels measured by OTIF (On-Time In-Full). This situation may delay delivery due to the long distance (367 km or 12 hours by land transportation) between Medan and Martabe. Low OTIF rates correspond with the limited availability of parts at PT XYZ. A company's ability to supply demand with its stock is the availability of parts. Consequently, customers purchase from competitors with parts that are ready on-site. This study has designed new support points based on accurate demand forecasting and a project feasibility assessment based on an Internal Rate of Return (IRR). As a result, new support points guaranteed the availability of parts to make the item In-Full and decrease lead time delivery to make the item On-Time. After building a new support point at the Martabe site, sales increased by 74% and contributed to a 44% growth in sales in the Medan area
Automatic water droplet splash photography: Design and analysis of an Arduino-controlled solenoid triggering device Khamdi, Nur; Nasution, Henry; Mulyadi, Mulyadi
Journal of Mechatronics, Electrical Power, and Vehicular Technology Vol 16, No 1 (2025)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/j.mev.2025.1124

Abstract

Capturing transient water droplet splashes poses significant challenges due to their millisecond-scale corona formations, with manual methods achieving only 3 % success rates. This study developed an Arduino-based automated photography system that integrates a solenoid-driven droplet generator and optocoupler-triggered camera to address this limitation. The device calculates droplet impact timing using gravitational acceleration by synchronizing solenoid activation and camera triggering via an Arduino Nano. Experimental trials at a 50 cm droplet height demonstrated 100 % capture accuracy at 105 ms delays, outperforming manual methods (6 % success). Photographer evaluations rated splash aesthetics at 50 cm as optimal (9/10), emphasizing crown symmetry and height. The optocoupler-based system achieved sub-millisecond response times, surpassing electromechanical alternatives. By reducing memory waste from failed captures by 94 %, this approach enhances efficiency in high-speed macro photography. These results validate the system’s reliability for studying fluid dynamics and surface interactions, offering a scalable framework for automated imaging applications in scientific and artistic domains.
Design of PID Controller using LQR-Based Parameter Selection for DC Motor Position Control Hartono, Hartono; Budiarto, Eka; Nasution, Henry
Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Vol 12 No 1 (2025): Jurnal Ecotipe, April 2025
Publisher : Jurusan Teknik Elektro, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jurnalecotipe.v12i1.4536

Abstract

DC motors are widely applied in various fields due to their simple design, ease of control, and capability to generate high torque at low speeds. Position control of DC motors is crucial to ensure the performance and accuracy of the motorized electro-mechanical systems. The most common conventional control utilized in DC motors is the Proportional Integral Derivative (PID) controller. However, selecting the proper parameters for that controller is challenging. In this paper, the Linear Quadratic Regulator (LQR) approach is used to determine PID controller parameters for DC motors. The LQR approach, based on optimal control theory, offers a systematic alternative to traditional trial-and-error methods for tuning PID controllers. The proposed method improves the performance and efficiency of DC motors by optimizing the PID parameters, ensuring precise control and energy utilization.
Driver assistance collision warning system using a LIDAR sensor with kinematics and perception algorithms Susanto, Willi Immanuel; Nasution, Henry; Sofianti, Tanika Dewi
SINERGI Vol 29, No 3 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2025.3.003

Abstract

Road accidents remained a significant global concern, causing loss of life and economic damage. To mitigate this issue, the automotive industry has increasingly invested in Advanced Driver Assistance Systems to enhance vehicle safety. This research presented a Driver Assistance Collision Warning System that incorporated kinematics and perception algorithms to improve collision prevention. The system utilized a LIDAR sensor to capture real-time data regarding the distance to the vehicle in front of it. This data was integrated with an Arduino microcontroller to compute the relative speed and time of collision. Upon detecting a collision risk, the system triggered a warning mechanism, which included an audible alert provided by a buzzer and a visual warning displayed on the head-up display. The system integrated kinematics algorithms, which processed sensor-read values to generate real-time decisions utilizing a specific threshold time to collision, and perception algorithms relied on Fuzzy Logic to handle uncertainty and improve accuracy. Validation was conducted through integration, system, and acceptance testing, demonstrating reliable synchronization of algorithms and accurate operation in real-world environments. The results showed that the system achieved a collision risk detection accuracy of ±5 cm within five different environmental factors. These findings confirmed the system's potential as a reliable solution for real-world collision prevention. 
Condensate Water Processing of Split-Unit Air Conditioning System on Commercial Building Nasution, Henry; Aubaidellah, Nurul Hanim
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 6, No 2 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v6i2.23744

Abstract

This research investigates the feasibility and potential for water recovery from condensate produced by a split-unit air conditioning (AC) system in a commercial building, focusing on Scholar’s Inn UTM (SIUTM) in Johor, Malaysia. The study involves the collection and measurement of condensate water from 243 AC units under various operational conditions. The results indicate that the building can produce up to 4,781 liters of condensate per day, amounting to an annual total of approximately 1,721,160 liters. This significant volume highlights the potential for utilizing condensate as an alternative water source, especially in regions with similar hot and humid climates. Water quality analysis was conducted to evaluate the suitability of the condensate for various applications. The condensate water exhibited a pH of 7.17, Total Dissolved Solids (TDS) of 1.0 mg/L, and a copper (Cu) concentration of 1.1 mg/L. While these parameters indicate that the water is within acceptable ranges for non-potable uses, such as irrigation or cooling tower makeup water, the copper concentration slightly exceeds the standard for potable water, necessitating treatment such as reverse osmosis before consumption. The study’s findings underscore the environmental and economic benefits of condensate recovery, offering a sustainable solution to water scarcity issues in commercial buildings. By integrating condensate recovery systems, facilities can reduce their reliance on traditional water sources, contributing to broader water conservation efforts. Future research should explore the long-term viability and scalability of such systems in various building types and climates.
Co-Authors Afiq Aiman Dahlan, Afiq Aubaidellah, Nurul Hanim Azhar Abdul Aziz Azhar Abdul Aziz, Azhar Eka Budiarto, Eka Hartono Hartono Hendriana, Dena Kasni Sumeru Khamdi, Nur Mohd Farid Muhammad Said, Mohd Farid Muhammad Mohd Rozi Mohd Perang Mulyadi Mulyadi Sandjaja, Edwin Sofianti, Tanika Dewi Susanto, Willi Immanuel Togar Wiliater Soaloon Panjaitan Werdaya, Najih M.S. Zulkarnain Abdul Latiff, Zulkarnain