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Syaputra, Muhammad Lyan
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Aerospace Engineering Automotive Engineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering

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The Effect of Imbalance On Rotor Vibration in Electric Motors Albaru, Agung; Balqis, Dinda; Afriandi, Irvan; Syaputra, Muhammad Lyan
METALOGRAM Metalogram Vol.01 No.03 (August,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v1i03.7979

Abstract

Mechanical system failures in electric motors are often caused by mass imbalance in the rotor. This imbalance occurs when the mass distribution is uneven relative to the axis of rotation, causing the center of mass to deviate from the rotational axis. Such conditions generate centrifugal forces that lead to excessive vibrations, accelerate component wear, reduce efficiency, and shorten the motor’s lifespan. Mass imbalance in the rotor system is one of the main causes of excessive vibration in rotating machines, which can result in performance degradation, component wear, and even catastrophic failure. This study aims to analyze the vibration characteristics caused by unbalance in a single rotor and evaluate the effectiveness of the trial weight balancing method (three-test-mass method) in reducing the resulting vibrations. Experimental testing was conducted using a Digital Signal Analyzer (DSA), an accelerometer sensor, and a rotor test system with various unbalanced mass configurations installed on the rotor disk. Vibration data were analyzed in both time and frequency domains using the Fast Fourier Transform (FFT) to identify dominant frequencies due to unbalance. The results show that the highest vibration amplitude occurs at the fundamental frequency corresponding to the rotor’s rotational speed. The three-test-mass balancing method proved effective in significantly reducing the vibration amplitude after mass correction. These findings indicate that identifying unbalance through vibration response and applying an appropriate balancing method can improve the stability and reliability of rotating rotor systems, including both three-phase induction motors and universal motors such as electric drills.
Toughness and Structural Analysis of Welds and HAZ of Sumerged Arc Welding on SM 490 Steel Sianipar, Stiven Ewin; hasibuan, fardin; Syaputra, Muhammad Lyan
METALOGRAM Metalogram Vol.01 No.03 (August,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v1i03.8144

Abstract

The welding process is a metal joining method that utilizes high heat energy, which can trigger changes in the microstructure, deformation, and the emergence of residual stress in the area around the joint. This study aims to examine the impact of variations in heat input in the Submerged Arc Welding (SAW) process on the microstructure and toughness of SM 490 steel, especially in the weld area and heat-affected zone (HAZ). The SAW method was chosen because it has high efficiency, is easy to automate, and is able to produce good quality joints. This study used three levels of heat input, namely 2.1 kJ/mm, 3.16 kJ/mm, and 4.3 kJ/mm. Based on the test results, increasing heat input causes slower cooling, which affects the formation of microstructures such as ferrite at the grain boundary, acicular ferrite, Widmanstätten ferrite, bainite, and martensite. Acicular ferrite with fine size and interlocking pattern is known to contribute to increasing the toughness of welded joints. The maximum toughness in the weld zone, amounting to 117 Joules, was achieved at a heat input of 3.16 kJ/mm with a test temperature of 0°C. Meanwhile, the best toughness value in the HAZ of 17.5 Joules was recorded at a heat input of 2.1 kJ/mm at a temperature of -20°C. The results of this study confirm that appropriate heat input settings are very important to obtain optimal microstructure and toughness in welding SM 490 steel using the SAW method
Strength Analysis of SUS304 and SUS440 Stainless Steel Materials for Piping in DI Water Systems W.K.P, Nanta; Syaputra, Muhammad Lyan; Rabian, Dimas Abdul
METALOGRAM Metalogram Vol.01 No.02 (April,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i1.7402

Abstract

This study presents a strength analysis of SUS304 and SUS440 stainless steel materials in the context of their suitability for piping applications in Deionized (DI) water systems. Stainless steel materials, particularly SUS304 (austenitic) and SUS440 (martensitic), are often considered for piping systems due to their durability, corrosion resistance, and mechanical properties. The objective of this research is to evaluate and compare the tensile strength, corrosion resistance, and long-term performance of these two materials when exposed to the specific conditions of DI water environments. SUS304 is known for its excellent resistance to corrosion, making it a widely used material for pipes and fittings in systems that transport water, food, and beverages. Its superior formability, high ductility, and resistance to oxidation at ambient temperatures have made it a popular choice for water distribution systems. In contrast, SUS440 offers higher hardness and wear resistance, which is particularly advantageous for components subjected to high mechanical stress. However, its corrosion resistance is generally inferior to that of SUS304, particularly in environments exposed to chlorides and other corrosive agents commonly found in DI water. The strength analysis in this study involved testing the materials for tensile strength, hardness, and resistance to corrosion under simulated DI water conditions. Both materials underwent mechanical testing, including tensile testing, microhardness testing, and accelerated corrosion testing. The results show that SUS304 demonstrated superior corrosion resistance, making it more suitable for DI water systems, where prolonged exposure to moisture and trace chemicals could lead to degradation. SUS440, while showing higher tensile strength and hardness, exhibited lower corrosion resistance, which could lead to material failure over time when exposed to DI water. This study concludes that SUS304 is the more appropriate material for piping in DI water applications due to its superior corrosion resistance and adequate mechanical strength for typical water transport systems. However, SUS440 may be considered for specific components requiring higher wear resistance but with additional measures to address potential corrosion issues.
Analysis of Wind Energy Potential and Technical Evaluation of a Small-Scale Wind Turbine for Electricity Generation in Batam, Indonesia Hasibuan ST.MT, Fardin; syaputra, Muhammad Lyan; irsyam, Muhammad; faturahman, noval; kuniawan, Muhammad iman
METALOGRAM Metalogram Vol.02 No.01 (December,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i1.8692

Abstract

Wind energy represents one of Indonesia’s most promising renewable energy resources, with a national potential estimated at approximately 60 GW. However, its implementation remains limited due to insufficient site-specific assessments and feasibility studies. This research analyzes the wind energy potential at Galang District Beach, Batam City, and evaluates the technical suitability of the Sky Dancer 500 (TSD 500) wind turbine equipped with inversed-taper blades for small-scale electricity generation. A descriptive quantitative method was employed using secondary wind speed data from NASA (2014–2018) and primary measurements collected continuously for 30 days. Results show that Galang District Beach, Batam City exhibits average wind speeds ranging from 4 to 13.41 m/s, with a maximum recorded speed of 13.41 m/s. Based on technical analysis, low-speed wind characteristics align well with the operational profile of a horizontal-axis wind turbine utilizing inversed-taper blades. Estimations indicate that the TSD 500 turbine can generate 390–500 Wh of electricity per day under the observed wind conditions. These findings demonstrate that the site possesses adequate potential for micro-scale wind power development, and deploying ten units of the TSD 500 turbine could supply daily electrical needs for approximately ten households. The study contributes to the growing body of literature on decentralized renewable energy solutions for remote and coastal communities in Indonesia..
Optimizing Material Selection and Manufacturing Processes For Enhanced Drill Bit Performance Syaputra, Robby Yandri; Barimbing, Ivan Mangisara; Syaputra, Muhammad Lyan; Borutnaban, Bernath Matheus; hasibuan, fardin; Irsyam, Muhammadd
METALOGRAM Metalogram Vol.02 No.01 (December,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i1.7432

Abstract

Drill bit performance is significantly influenced by material selection and manufacturing processes. This study optimizes material choices and advanced manufacturing techniques to enhance drill bit performance. By evaluating mechanical properties, wear resistance, and thermal stability of various materials, the research identifies the most suitable options for specific drilling conditions. Additionally, the impact of advanced manufacturing methods, such as additive manufacturing and precision machining, is explored to improve accuracy, durability, and efficiency. The results demonstrate improvements in drill bit performance, including reduced wear and extended operational lifespan. This research contributes to the development of more efficient and durable drill bits.
Analysis of Weld Defects and Their Solutions in Manual Welding of Carbon Steel Albaru, Agung; Syaputra, Muhammad Lyan; Balqis, Dinda; Afriandi, Irvan; Hasibuan, Fardin
METALOGRAM Metalogram Vol.02 No.01 (December,2025)
Publisher : Universitas Riau Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33373/mtlg.v2i1.7978

Abstract

Welding is one of the most commonly used metal joining processes in the manufacturing and construction industries. However, this process often results in defects in the weld joint, especially in manual welding of carbon steel, which can affect the quality and strength of the joint. This study aims to analyze the types of welding defects that occur in manual welding of carbon steel, identify their main causes, and provide technical solutions to minimize such defects. The methods used include visual inspection, penetrant testing (PT), and macrostructure examination of the welded joints. The results show that the most common defects found are porosity, undercut, incomplete fusion, and slag inclusion. The primary causes of these defects include improper welding parameter settings, inadequate cleanliness of the metal surface, and the skill level of the operator. As solutions, it is recommended to conduct regular operator training, adjust current and voltage according to the type of electrode used, and ensure proper surface preparation before welding. This study is expected to serve as a reference for industry practitioners in improving the quality of carbon steel weld joints
Co-Authors Albaru, Agung Balqis, Dinda barimbing, Ivan mangisara Borutnaban, Bernath Matheus Fardin Hasibuan faturahman, noval Hasibuan ST.MT, Fardin Irsyam, Muhammadd Irvan Afriandi kuniawan, Muhammad iman Muhammad Irsyam, Muhammad Rabian, Dimas Abdul Sianipar, Stiven Ewin Syaputra, Robby Yandri W.K.P, Nanta