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Andi Firdaus Sudarma
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Universitas Mercu Buana Program Studi S2 Teknik Mesin Jl. Meruya Selatan No. 01, Kembangan, Jakarta Barat 11650, Indonesia
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International Journal of Innovation in Mechanical Engineering and Advanced Materials
Published by Universitas Mercu Buana
ISSN : 2477541X     EISSN : 24775428     DOI : https://dx.doi.org/10.22441/ijimeam
Core Subject : Science, Engineering,
Automotive Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering
The journal publishes research manuscripts dealing with problems of modern technology (power and process engineering, structural and machine design, production engineering mechanism and materials, etc.). It considers activities such as design, construction, operation, environmental protection, etc. in the field of mechanical engineering and other related branches. In addition, the journal also publishes papers in advanced materials related with advanced electronic materials, advanced energy materials, advanced engineering materials, advanced functional materials, advanced materials interfaces, and advanced optical materials.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 107 Documents
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Development of Teak Wood Powder–Epoxy Composite for Motorcycle CVT Weight Rollers Application Susilo, R. Dwi Pudji; Fitri, Muhamad; Yafiq, Muhammad Sulthan; Hamid, Abdul; Romahadi, Dedik
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 8, No 1 (2026): Article in Press
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v8i1.33422

Abstract

The development of sustainable materials for automotive components has become increasingly important due to environmental concerns associated with conventional synthetic materials. This study investigates the feasibility of teak wood powder (Tectona grandis L.F.) reinforced epoxy composites as an eco-friendly alternative to polytetrafluoroethylene (PTFE) for Continuously Variable Transmission (CVT) weight rollers. The composite was fabricated using a hot-press method with varying composition ratios (60:40, 70:30, and 80:20) and processing temperatures (160 °C, 170 °C, and 180 °C) under a constant pressure of 20 bar. Mechanical performance was evaluated through tensile testing in accordance with ASTM D3039. The results demonstrate that both composition and processing temperature significantly influence tensile strength. The optimal condition—60% teak wood powder and 40% epoxy resin processed at 180 °C—yielded the highest average tensile strength of approximately 25 MPa, surpassing the typical value of conventional PTFE-based rollers (~23 MPa). The improvement is attributed to enhanced matrix–filler bonding and better resin flow at elevated temperatures, resulting in more effective load transfer and reduced void formation. Conversely, higher filler content led to reduced performance due to insufficient matrix continuity and increased interfacial defects. This study provides a significant contribution by demonstrating that teak wood waste can be effectively utilized as a reinforcement material in structural automotive applications. The findings highlight a viable pathway toward cost-effective, sustainable composite design while maintaining competitive mechanical performance. Further investigation on tribological behavior and long-term durability is recommended to support real-world implementation.
Enhancing Kiln Reliability in Cement Industry Using RCM II and FMEA Faizzah, Mustika Ratnawati; Muti, Asri Amalia; HarisTanti, Sindy Nindia Maretha
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 7, No 3 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v7i3.35085

Abstract

This study applies to the Reliability-Centered Maintenance (RCM) II methodology to improve the reliability and cost efficiency of a kiln system in a cement manufacturing plant. Kiln failures are critical because they cause unplanned downtime, reduced productivity, and financial losses. Traditional corrective or time-based maintenance strategies often fail to address the stochastic nature of failures in such high-temperature rotary systems. To overcome this gap, the research integrates Failure Mode and Effect Analysis (FMEA) with RCM II decision logic to identify and prioritize maintenance actions. The analysis focused on five critical kiln components—crusher cooler, firebrick lining, thrust roller, grate cooler, and main drive—using 12 months of operational data supported by expert interviews and technical manuals. Reliability indicators, including Mean Time to Failure (MTTF), Mean Time to Repair (MTTR), and Mean Time Between Failures (MTBF), were calculated, while Risk Priority Numbers (RPN) were assigned to rank failure modes. Results showed that the crusher cooler had the highest risk, whereas the main drive required the longest repair duration. Implementation of RCM II recommendations increased MTBF by 29–38% across components and reduced maintenance costs by more than 50%. These findings confirm that RCM II provides a practical, data-driven framework for enhancing system availability. The study contributes to maintenance engineering by demonstrating a structured approach that supports risk-informed and condition-based maintenance strategies in continuous-process industries.
Natural Inhibitors for Corrosion Protection of 6061 Aluminum Alloy: A Review Witanta, Maulana; Arwati, I Gusti Ayu; Majlan, Edy Herianto
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 7, No 3 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v7i3.34713

Abstract

6061 aluminum alloys are widely used in automotive, marine, and aerospace industries, yet their high susceptibility to corrosion in acidic and chloride environments remains a challenge. Bio-based inhibitors from natural sources have emerged as sustainable alternatives to toxic synthetic chemicals. This review synthesizes findings from published studies on AA6061 alloys and composites, integrating evidence from Potentiodynamic Polarization (PDP), Electrochemical Impedance Spectroscopy (EIS), and Scanning Electron Microscopy (SEM). Cross-study evaluations show that inhibition efficiency depends on inhibitor type and mechanism. Reports indicate that Boswellia serrata provides only moderate protection (~70%) due to weak physiosorbed films that are unstable under flow, whereas Alocasia odora achieves higher efficiency (~94% in HCl) through chemisorption with cathodic inhibition. Aerva lanata demonstrates ~88% efficiency in chloride-based fiber-metal laminates via polyphenolic adsorption, while glutathione provides ~80% protection at 0.75 mM through multisite coordination. Pectin consistently achieves the highest efficiency (~95% in mild acidic media) by forming compact polymeric films that increase charge-transfer resistance and reduce double-layer capacitance. This synthesis indicates that chemisorption-based inhibitors (e.g., pectin, Alocasia) generally outperform physisorption-based systems (e.g., Boswellia) because they form stronger and more stable films. Reported studies highlight both advantages and limitations: natural inhibitors are effective and eco-friendly, but most evaluations remain short-term and laboratory-based. Key gaps include durability testing, advanced characterization (XPS, ToF-SIMS, Raman, AFM), galvanic effects in composites, and poor hydrodynamic stability of physisorption systems. Future work should explore hybrid strategies, synergistic multi-inhibitor approaches, and validation under real-sea conditions to enable scalable and industrially viable corrosion protection.
Utilization of Plastic Waste and Rice Husk Ash in Polyethylene-Based Composites for Ceiling Applications Wangge, Gusti F. X. Wara; Servianus, Yohanes Viva; Rande, Thadeus
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 7, No 3 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v7i3.36658

Abstract

This study aims to analyze the effect of polyethylene (PE) and rice husk ash (RHA) composition variations on the mechanical properties of recycled composites developed as environmentally friendly ceiling materials. Composite specimens were prepared through a systematic process involving shredding PE plastic waste into 3–5 mm particles, burning rice husks at 600–700 °C followed by sieving through a 200-mesh screen, melting the plastic at 160–170 °C, and mixing with RHA at three composition ratios: 80:20, 70:30, and 60:40 (PE:RHA). The mixtures were molded into 50 × 50 mm specimens and tested in accordance with ASTM D695 for compressive properties and ASTM D792 for density. The results show that composition variation significantly influences compressive strength, elastic modulus, and strain behavior. The 80:20 composition exhibited the highest elasticity, with a compressive strength of 15.59 MPa and an elastic modulus of 463.50 MPa; however, it fractured shortly after exceeding the elastic limit. The 60:40 composition achieved the highest compressive strength of 125 MPa with a strain of 56.6%, but showed brittle behavior due to its very low elastic modulus (7.5 MPa). The 70:30 composition demonstrated the most balanced mechanical performance, with a compressive strength of 61.65 MPa, a strain of 18.20%, and stable ductile behavior. Based on the overall mechanical performance, the 70:30 PE–RHA composition is recommended as the optimal formulation, as it provides the best balance between strength, stiffness, and deformation resistance. This composition is therefore considered the most suitable for non-structural ceiling applications requiring lightweight, mechanically stable, and environmentally sustainable materials.
Optimization of CNC Turning Parameters for Surface Roughness of Brass 36000 Using the Taguchi Method Noviana, Agus; Fitri, Muhamad; Romahadi, Dedik
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 7, No 3 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v7i3.37302

Abstract

Brass is widely used in industrial applications due to its excellent machinability and durability, making it well suited for CNC turning operations. Although numerous studies have investigated the optimization of turning parameters, variations in machine tools and cutting conditions often lead to differing conclusions. This study aims to optimize surface roughness in the CNC turning of Brass 36000 using the Taguchi method. An L9 orthogonal array was employed to evaluate the effects of spindle speed, feed rate, depth of cut, and coolant type. Experimental data were analyzed using signal-to-noise (S/N) ratio analysis and analysis of variance (ANOVA) to identify the most influential parameters and optimal cutting conditions. The results indicate that feed rate is the dominant factor affecting surface roughness, contributing 95.54% of the total variation, followed by spindle speed (1.88%), depth of cut (0.33%), and coolant type (0.18%). The optimal machining parameters were determined as a spindle speed of 1700 rpm, feed rate of 0.1 mm/rev, depth of cut of 1.0 mm, and the use of synthetic coolant (GT41), resulting in a minimum surface roughness of 0.67 µm. These findings demonstrate that precise control of feed rate is critical for achieving improved surface quality in CNC turning of brass.
Numerical Study of Nano Enhanced PCM Incorporated Heat Sink with Wavy Shaped Plate Fins Hazra, Soumik Kumar
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 8, No 1 (2026): Article in Press
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v8i1.35039

Abstract

Modern high-power electronic devices require efficient passive cooling strategies to maintain safe operating temperatures. This study presents a two-dimensional numerical investigation of a nano-enhanced phase change material (NePCM)-based heat sink incorporating wavy-shaped plate fins. The NePCM consists of paraffin with 3 wt% CuO nanoparticles to enhance thermal conductivity. The novelty of this work lies in the integration of wavy-shaped fins to promote natural convection and accelerate PCM melting, thereby improving heat dissipation performance. The governing continuity, momentum, and energy equations are solved using the enthalpy–porosity method under a constant heat flux of 10,000 W/m² and a convective boundary condition of 10 W·m⁻²·K⁻¹. Parametric analyses are conducted by varying the number of cavities (3, 5, and 7) and fin height (40–50 mm). The results show that the NePCM heat sink reduces the peak temperature from 438 K (conventional) to 381 K, corresponding to a reduction of approximately 13% after 30 minutes. The wavy fin configuration enhances fluid circulation within the molten PCM, leading to faster melting and improved heat absorption. Increasing cavity number from 3 to 7 reduces the average temperature by up to ~7 K, while increasing fin height to 50 mm further lowers the temperature by approximately 10–20 K compared to shorter fins. The combined effect of latent heat storage and enhanced natural convection induced by wavy fins significantly improves thermal management performance, making the proposed design a promising solution for compact electronic cooling applications.
Design and Construction of Automatic pH and Water Level Control in Tilapia Fish Farming Ponds Saputra, Patwan; Mege, Christio Revano; Gani, Ferizandi Qauzar
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 8, No 1 (2026): Article in Press
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v8i1.34353

Abstract

This study presents the design and implementation of an automatic control system for regulating pH and water level in tilapia (Oreochromis niloticus) aquaculture ponds. The system integrates a pH sensor and an ultrasonic sensor (HC-SR04) with an ESP32 microcontroller to enable real-time monitoring and automated control through solenoid valves. Sensor calibration was performed using standard buffer solutions (pH 4.00, 7.00, and 10.00) based on potentiometric principles derived from the Nernst equation, resulting in high linearity and reliable measurement accuracy. Experimental evaluation demonstrates that the proposed system is capable of maintaining water quality parameters within the optimal range required for tilapia cultivation. The pH control system achieved its best performance with a settling time of 1950 s and a steady-state error of 0.93%, indicating stable and accurate regulation. For water level control, the system exhibited a settling time of 7570 s during the filling process and 2965 s during the draining process, both with negligible steady-state error, confirming high control precision. Although the system shows relatively slow dynamic response due to hydraulic and actuator limitations, the gradual adjustment is advantageous in aquaculture applications, where sudden environmental changes can negatively affect fish health. Overall, the developed system provides a low-cost, reliable, and practical solution for improving aquaculture management through automation. Future work should focus on implementing adaptive control algorithms, enhancing sensor performance, and integrating IoT-based monitoring platforms to support scalability and remote operation.

Page 11 of 11 | Total Record : 107

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