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Contact Name
Abdul Ghofur
Contact Email
ghofur70@ulm.ac.id
Phone
+6282139690739
Journal Mail Official
ghofur70@ulm.ac.id
Editorial Address
Program Studi Teknik Mesin, Fakultas Teknik, Universitas Lambung Mangkurat Jalan Jenderal Achmad Yani KM 35,5 Banjarbaru, Kalimantan Selatan - 70714
Location
Kota banjarmasin,
Kalimantan selatan
INDONESIA
Scientific Journal of Mechanical Engineering Kinematika
ISSN : 26559048     EISSN : 2655903X     DOI : http://dx.doi.org/10.20527
Scientific Journal of Mechanical Engineering Kinematika (SJME Kinematika) is a mechanical engineering journal that focuses on Energy, Applied Mechanics, Materials, Manufacturing Processes. SJME Kinematics journal publish in Indonesian and receive in English. Scientific Journal of Mechanical Engineering Kinematika (SJME Kinematika) is an Open Access Journal that is available for free on online media. We are not only accept journals that focus on the derivatives of the four fields below, but also the possibility of an integrated focus of fields from several fields.
Articles 166 Documents
SIMULASI DINAMIKA BENDA JAMAK INTERAKSI RODA-REL UNTUK LOKOMOTIF LANGSIR DI JALUR BERPUNTIR Alvian Iqbal Hanif Nasrullah; Prasetya Adi Nugraha
Scientific Journal of Mechanical Engineering Kinematika Vol 9 No 2 (2024): SJME Kinematika Desember 2024
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v9i2.343

Abstract

The effects of track twist on a shunter locomotive, a subject less explored compared to high-speed and freight trains, are investigated to extend knowledge of wheel-rail interaction. The study focuses on the impact of a 5% track twist on spring forces experienced by train wheels, addressing key issues such as derailment potential and wheel-rail contact loss. By analyzing the Nadal ratio and wheel lift under low-speed conditions (10-20 km/h), typical for shunter locomotives, the study provides new insights into operational safety. Multibody dynamics simulation with a simplified two-axle locomotive model shows that, despite challenging twisted track conditions, both Nadal ratio and wheel lift remain within safe limits, indicating a low risk of derailment. While these findings align with safety criteria established for other types of rail vehicles, the focus on shunter locomotives under such conditions represents a novel contribution to the field, filling a gap in existing literature. The study’s limitations, including model simplifications and the exclusion of real-world complexities, highlight the need for further validation and research to improve understanding of wheel-rail dynamics across varied operational environments.
SIFAT FISIK DAN MORFOLOGI KOMPOSIT KARBON AKTIF TONGKOL JAGUNG Maulana Sanwijaya; Afira Ainur Rosidah; Muhammad Yunus
Scientific Journal of Mechanical Engineering Kinematika Vol 9 No 2 (2024): SJME Kinematika Desember 2024
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v9i2.346

Abstract

Corn cobs are included in agricultural waste that is not utilized optimally. This organic waste is one of the right candidates to be used as activated carbon with various promising uses. This is the background for this research to make activated carbon from corn cobs which is activated using ZnCl2 with activator variations of 0, 8, and 16%. FTIR testing was performed to confirm the functional groups that appeared on the carbon from corn cobs before and after activation. Additionally, the activated carbon that successfully made was mixed with sago starch in a ratio of 75:25 to become a composite and to make it easier to fabricate the sample. Then SEM-EDX characterization, water content and ash content were carried out. The results of the FTIR test showed that the addition of the ZnCl2 activator caused the appearance of hydroxyl groups. In the water content, the results showed that the higher the activator concentration, the higher the water content. Meanwhile, the higher the activator used in activated carbon, the lower the ash content. SEM testing showed an enlargement of pore size and uniformity with increasing ZnCl2 concentration and EDX results showed an increase in the percentage of O elements.
PENGARUH PARAMETER PROSES WIRE ARC ADDITIVE MANUFACTURING (WAAM) TERHADAP GEOMETRI BUTIR LAS TUNGGAL ER5356 Deni Andriyansyah; Herianto; Emanuel Budi Raharjo; Husein Arif Susanto; Gervasius Andro Hermawan Mintardjo
Scientific Journal of Mechanical Engineering Kinematika Vol 9 No 2 (2024): SJME Kinematika Desember 2024
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v9i2.363

Abstract

This study examined the effects of WAAM printing parameters on single weld bead geometry using ER5356 aluminum electrode (0.1 mm diameter). Parameters varied include Voltage (18 V, 22 V, 26 V), Current (100 A, 140 A, 180 A), and Feedrate (500 mm/min, 750 mm/min, 1000 mm/min). The process produced both discontinuous and continuous weld beads. Continuous weld beads with Heat Input (HI) ranging from 0.17 kJ/mm to 0.43 kJ/mm were achieved under low voltage (18 V) and high current (180 A) settings. Voltage variation did not significantly affect bead consistency, but consistent welds were more prevalent under high-current and low-voltage conditions than with high-voltage settings. Feedrate influenced bead geometry, with lower feedrates producing larger weld grains. The smallest layer width (6.77 mm) and height (1.36 mm) were obtained with 22 V, 140 A, and 1000 mm/min, while the largest width (14.29 mm) and height (2.8 mm) resulted from 26 V, 180 A, and 500 mm/min. This study highlights the impact of voltage, current, and feedrate on weld bead geometry and consistency in WAAM processes.
ANALISIS AERODINAMIKA UNTUK DESAIN MOBIL LISTRIK JENIS KARGO MINI Azis Amir Allah; Tri Mulyanto
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 1 (2025): SJME Kinematika Juni 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i1.365

Abstract

As an effort to expand the development of electric vehicles, one of the steps is to design an aerodynamic body for electric cars. An aerodynamic body design can reduce drag forces acting on the vehicle, thereby saving energy usage. A key aspect to consider in aerodynamic design is the drag coefficient (Cd) value; the smaller the Cd value, the greater the energy efficiency and overall vehicle performance. Therefore, this study aims to design an aerodynamic body for a mini cargo electric car, which can later serve as a reference design for mini cargo electric vehicles. The simulation was conducted using ansys fluent 2023 R1 software with the computational fluid dynamics (CFD) method. Initial validation was performed using the Ahmed body design. Simulations were carried out with speed variations of 20 km/h, 30 km/h, 40 km/h, 50 km/h, and 60 km/h. The results of the study showed that the lowest Cd value occurred at a speed of 60 km/h, with a Cd value of 0,458. Thus, at a speed of 60 km/h, the mini cargo electric car will have better energy efficiency and vehicle performance compared to other speeds.
PENGARUH VARIASI MEDIA PELAPIS TERHADAP PEMOTONGAN AKRILIK TRANSPARAN DENGAN PROCUT DIODE 15 WATT Della Dwi Friatinia; Sairul Effendi; Almadora Anwar Sani
Scientific Journal of Mechanical Engineering Kinematika Vol 9 No 2 (2024): SJME Kinematika Desember 2024
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v9i2.404

Abstract

Laser cutting machines are widely utilized in various industries for cutting diverse materials. One commonly used material is acrylic, which is typically processed using CO2 laser cutting machines. However, such machines have the drawback of being relatively expensive. As an alternative, diode laser cutting machines offer a more cost-effective solution, although their effectiveness on acrylic, particularly transparent acrylic, remains to be thoroughly validated. Diode laser modules are known to cut materials such as paper, wood, bamboo, leather, and plastics. Preliminary tests indicate that the laser beam does not produce cutting effects on transparent acrylic due to its ability to pass through the material. This study aims to evaluate the effectiveness of coating methods in cutting transparent acrylic using diode lasers and to identify the optimal parameters. Three types of coating media were used: paper, adhesive tape, and black MDF board. The results show that transparent acrylic can be successfully cut using a paper coating, with the optimal parameters being a power intensity of 90%, a cutting speed of 6 mm/min, and two repetitions. These findings provide an economical solution for cutting transparent acrylic using diode laser cutting machines.
STUDI PENYEDIAAN AIR BERSIH DI DESA SULAMU MENGGUNAKAN TEKNOLOGI PHOTOVOLTAIC- SEA WATER REVERSE OSMOSIS Arbye S; Achmad Aziizudin; Agung Purnomo; Cahyo Wibi Yogiswara; Dimas Ardiansyah Halim; Setya Drana Harry Putra
Scientific Journal of Mechanical Engineering Kinematika Vol 9 No 2 (2024): SJME Kinematika Desember 2024
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v9i2.520

Abstract

The scarcity of clean water is predicted to become a serious threat for Indonesia in the future, particularly in regions with low rainfall, and coastal regions with limited freshwater resources. This study examined clean water provision using seawater desalination technology in Sulamu Village, Kupang, East Nusa Tenggara, projected until 2032. The technology used was seawater desalination powered by Photovoltaic (PV) systems, which drive the Sea Water Reverse Osmosis (SWRO) process. This technology was proposed as a sustainable solution to meet the clean water needs of the region. The research included an analysis of water demand, adjusted for projected population growth, and an estimation of energy consumption from the PV-SWRO system. A geometric method was applied to project the population up to 2032, estimating approximately 8.210 residents. Based on this projection, the clean water demand was expected to reach 215.769 m³ per year, with energy consumption estimated between 496 and 1.554 MWh per year. Given the abundant solar energy potential in Sulamu Village, this technology is anticipated to provide a stable and environmentally friendly supply of clean water. The estimated data on water and energy needs is intended to serve as a reference for stakeholders in developing strategies that support the sustainability of renewable energy-based desalination programs in the future.
ANALISIS KUALITAS DAN NILAI EKONOMIS PELLET KAYU GELAM Andy Nugraha; Herry Irawansyah; Muhammad; Moh Noer Afifuddin; Rizqi Nor Al’Arisko
Scientific Journal of Mechanical Engineering Kinematika Vol 9 No 2 (2024): SJME Kinematika Desember 2024
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v9i2.571

Abstract

Gelam wood is a natural species in swamp forests and is found in many peat swamp forests in South Kalimantan. Due to the abundant availability of gelam wood raw materials in this region and the need for biomass-based energy, wood pellets from gelam wood can be a solution. In this research, an evaluation was carried out on the quality of gelam wood pellets which included calorific value, specific gravity, and pressure test. In addition, an economic analysis of kayu gelam pellets was also carried out. This study used adhesives in the form of tapioca and wheat flour, variations in adhesive percentages of 0%, 5%, 10%, 15%, and powder sizes of 40 mesh, 50 mesh, and 60 mesh. The results of the research show that the calorific value decreases as the size of the gelam sawdust decreases and tapioca adhesive provides the best calorific value. Larger mesh sizes tend to produce higher compression test values and denser specific gravity. From an economic perspective, gelam wood pellets are relatively cheaper and easier to obtain
ANALISIS TEGANGAN DAN MODULUS ELASTISITAS STRUKTUR KISI YANG DI DESAIN MENGGUNAKAN SCRIPT BERBASIS PYTHON Eko Pujiyulianto; Muhamad Fatikul Arif; Abdul Muhyi; Fajar Paundra; Ariq Athallah; Daniel Christover Munte
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 1 (2025): SJME Kinematika Juni 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i1.572

Abstract

This study aims to evaluate TPMS lattice structure designs using Python scripts, which will later be used for lattice shell helmet designs. The structural design evaluation will be performed using numerical methods by varying the volume fraction. The lattice structures to be evaluated include FischerKochS, Honeycomb, pmy, and SchoenFRD. The CAD models of the lattice structures will be generated using Python-based scripts. The volume fraction variations are achieved by altering the shell thickness values in the Python scripts. The analysis will be conducted using numerical methods based on finite element analysis with static analysis and an elastic material model. The material used is ABS. Based on the research results, it indicates that the thickness specified in the script (thickness) cannot be defined as the actual shell thickness. The relationship between thickness and volume fraction indicates that each lattice structure will produce a different volume fraction when the shell thickness is varied. As the shell thickness increases, the volume fraction of the lattice structure also increases. volume fraction in lattice structures does not affect stress in a linear manner. The highest stress is observed in the pmy structure, followed by the Honeycomb and FischerKochS structures, while the SchoenFRD structure exhibits the lowest stress values. The most suitable design for use as a lattice structure in helmets is the ScheonFRD design. This is due to the design capability of ScheonFRD in distributing stress across the structure.
PENGARUH CETAKAN BRIKET TERHADAP KARAKTERISTIK BRIKET PADA MESIN PRESS HIDROLIK Angger Bagus Prasetiyo; Sutrisna; Dandung Rudy Hartana; Iman Pradana A. Assagaf; Kartinasari Ayuhikmatin Sekarjati; Aldi Sinar Saputro; Dominggus Daniel Lefmanut; Aditya Rahayu
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 1 (2025): SJME Kinematika Juni 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i1.606

Abstract

To create briquettes, the raw materials are compressed using a variety of pressing pressures. Briquette presses come in two popular varieties: vertical and horizontal. Briquettes are often made from non-hazardous home waste and agricultural biomass, offering a premium and sustainable alternative energy source. The goal of this study was to use a hydraulic press-type briquette press method to improve the shape properties of the briquettes. The ingredients employed in this investigation were water, tapioca, wood dust, and rice husk. The composition of the briquettes is 40% rice husk, 40% sawdust, 10% tapioca, and 10% water. A hydraulic press machine with a maximum pressure of 30 Psi was utilized in the briquette press method. This study will examine each mold's density, drop test, water resistance, and burning rate. According to this study, triangular briquettes have the lowest briquette burning rate value (0.1 g/min), the lowest impact resistance value (0.67%), the slowest burning rate value (0.1 g/min), which indicates longer burning, and the highest value (0.9696 g/cm³), which indicates a denser and more solid structure. According to the findings of the test criteria that researchers have conducted, triangular briquettes are recommended.
ANALISIS NILAI KEKERASAN DAN STRUKTUR MIKRO PADA PENGECORAN LIMBAH PISTON BEKAS DENGAN PENAMBAHAN MATERIAL SILIKON KARBIDA (SiC) Achmad Aziizudin; Agung Purnomo; Arbye S; Cahyo Wibi Yogiswara; Dimas Ardiansyah Halim; Setya Drana Harry Putra
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 1 (2025): SJME Kinematika Juni 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i1.646

Abstract

Piston is one of the most crucial components of an engine. The primary raw material used in piston manufacturing is aluminum alloy, with silicon being the dominant element in the composition. As aluminum metal is increasingly used in modern times, its price has risen, leading to higher costs for piston components, given that aluminum is the main raw material for pistons. To address this issue, a method is needed to minimize the use of aluminum in piston manufacturing, which can be achieved by recycling used pistons and incorporating other materials, such as silicon carbide (SiC). The addition of silicon carbide (SiC) was varied at 15%, 20%, and 25%. Hardness testing results showed that the higher the SiC content, the greater the hardness value obtained. As the hardness value increases, the wear resistance of the material improves. Based on this study, the addition of 15% SiC is optimum to achieve performance equivalent to that of a new piston of brand X.