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Irza Sukmana
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Journal of Applied Science, Engineering and Technology (J. ASET)
Published by INSTEP Publishing
ISSN : 27228371     EISSN : 27228363     DOI : https://doi.org/10.47355/aset
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering
J.ASET is published by INSTEP Publishing Indonesia and it focuses on all subjects in engineering, applied sciences, and vocational studies, they are including but not limited to: Mechanical and Manufacturing Industrial Engineering Chemical and Environmental Engineering Computer and Information Technology Electrical and Telecommunication Material and Mining Civil Engineering Architecture and Urban Planning Geophysics and Geodetic Engineering Vocational Engineering Studies Mathematics and Applied Sciences Medical Science and Biomedical Engineering Agricultural Engineering and Technology Interdisciplinary research
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 46 Documents
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Three Wheeled Vehicle Dynamics : Static Stability Factor Improvement LAMHALLI, AYOUB
Journal of Applied Science, Engineering and Technology Vol. 3 No. 2 (2023): December 2023
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v3i2.60

Abstract

Three Wheeled Vehicles are gaining popularity across various Asian and African countries. They are characterized for their relatively low susceptibility to rollover when compared to Four Wheeled Vehicles. Establishing an analytical criterion based on architectural parameters such as wheelbase, rear track, masses, and center of gravity coordinates is crucial. This criterion assists manufacturers, particularly during the initial design stages, providing valuable guidance for optimizing vehicle stability. The Static Stability Factor serves as a prominent design criterion in the automotive sector, offering an assessment of a vehicle's resistance to rollover incidents. This paper aims to enhance the existing criterion initially proposed by Huston et al., particularly by addressing scenarios where a load is unevenly distributed on the vehicle's tray. The findings of this study underscore the high sensitivity of such vehicles to unsymmetrical loading configurations.
Dr. DETERMINATION AND MODELING OF ULTIMATE TENSILE STRENGTH OF BREADFRUIT PEEL-LOW DENSITY POLYETHYLENE (BRFP-LDPE) COMPOSITE APPLYING BIGG’S EQUATION Rabboni, Dr. Government; Ayuba, Dr. Solomon
Journal of Applied Science, Engineering and Technology Vol. 4 No. 1 (2024): June 2024
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v4i1.61

Abstract

(LDPE) for breadfruit peel-low density polyethylene composite using statistical means to model ultimate tensile strength of the BRFP-LDPE composite using Bigg’s model. The breadfruit peel at fraction of 0.5-.0.25 wt when it was not modified was blended with LDPE matrix (UNT). The BRFP was later modified with NaOH (NST), NaOH+CH3COOH (AAT),, NaOH+CH3COOH+MAPE (MPT) impregnated in LDPE matrix to manufactured BRFP-LDPE composite by injection molding machine, respectively. After production, BRFP-LDPE composite was tested for the ultimate tensile strength. The results show that the Bigg’s model was able to give the prediction of the maximum tensile strength of BRFP-LDPE composite with coefficient of correlation (R2M) for the model =0.994 for UNT, NST, AAT and MPT, respectively. Also, in the same vein, the coefficient of correlation as derived from the experiments (R2) were 0.975, 0.978, 0.8 and 0.955 for the tensile strength of BRFP-LDPE composite which coincided for UNT, NST, AAT and MPT, respectively.. Finally, the relative percentage deviation modulus between experiment and Bigg’s equation (µ) <10. These statistical data seen confirmed highly prediction of ultimate tensile strength of experimental values using the Bigg”s model.
The effect of variations of V-seam root face on Shielded Metal Arc Welding (SMAW) on the mechanical properties of AISI 1045 medium carbon steel Sukmana, Irza
Journal of Applied Science, Engineering and Technology Vol. 3 No. 2 (2023): December 2023
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v3i2.62

Abstract

Steel is an alloy primarily composed of iron (Fe) with carbon (C) as its main alloying element. Medium carbon steel, a commonly used material in the automotive industry, is known for its strength and durability. The Shielded Metal Arc Welding (SMAW) process is widely employed to join metal parts by heating and pressing them together, using a coated electrode to protect the welding arc from oxidation. One key parameter in SMAW is the root face size, as it influences the amount of filler metal in the groove area, ultimately affecting the mechanical properties of the weld. This study investigates the impact of varying root face sizes on the mechanical properties of AISI 1045 medium carbon steel. Results from the impact test show a value of 0.772 Joules, indicating a notable correlation between root face size and mechanical performance. The tensile test results reveal that larger root face sizes reduce the filler metal qu Zulmiftahantity, resulting in higher tensile strength, as AISI 1045 steel exhibits greater tensile strength than the E7016 electrode. The highest average tensile strength, recorded at a 3 mm root face, was 559.05 MPa. Visual inspections revealed several welding defects, including spatter, porosity, start-stop marks, and pinholes.
Intelligent Eyes on the Battlefield: Developing an AI-Vision Based Military Vehicle and Infantry Detection System Wibowo, Pasha R A; Ummah , Khairul; Arifianto, Ony; Widagdo, Djarot; Riszal, Akhmad; Arif, Yanuar Zulardiansyah
Journal of Applied Science, Engineering and Technology Vol. 3 No. 2 (2023): December 2023
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v3i2.63

Abstract

The importance of accurate, real-time intelligence in modern warfare is crucial, especially in reconnaissance and surveillance operations. Currently, drones are widely used for reconnaissance, but generally rely only on the operator's ability to monitor operation targets. This research is aimed at developing an AI vision assistance system to enhance the ability to detect military vehicles and infantry. The method used is computer vision trained to recognize and differentiate several military objects. The YOLO model is used to detect and distinguish objects. To improve detection capabilities, the YOLO v8 model was retrained with an additional dataset sourced from battle recordings on the battlefield. The results show a detection accuracy rate of 95% in detecting vehicles and infantry under normal visual conditions. The model from this research can be used to enhance the capabilities of reconnaissance drones and the effectiveness of monitoring operations.
Aircraft Detection in Low Visibility Condition Using Artificial Intelligence Sembiring, Javensius; Ummah , Khairul; Widyosekti, M. Dhiku; Arif, Yanuar Zulardiansyah; Huda, Zulmiftah
Journal of Applied Science, Engineering and Technology Vol. 4 No. 1 (2024): June 2024
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v4i1.64

Abstract

Bad weather often interferes with the functioning of the air transport system. One example is the frequent flight delays for commercial aircraft, resulting in losses for both the airline and passengers. Artificial Intelligence (AI) technology can now minimize delays caused by bad weather, especially in low visibility conditions. This paper discusses AI modeling that can detect aircraft in a low visibility weather condition, especially in the airport area. The employed method is the deep learning approach with the YOLOv4 algorithm (single-stage detection), which is regarded as one of the optimal platforms in this field. There are 600 images used in this work to create and train three different models. Image Dehazing filter is employed on the training data before it is trained to produce the detection model. The result shows that the model has a good performance in terms of performance metrices. Thus, this model is suitable to be used to detect aircraft in low visibility conditions.
Design And CFD Analysis of A 250 Kg Capacity Boat For Access Between Small Islands In The Lampung Tourism Area Nazarrudin, Rizal; Sabiqunassabiqun
Journal of Applied Science, Engineering and Technology Vol. 4 No. 2 (2024): December 2024
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v4i2.66

Abstract

Characteristics from design boat capacity 3-4 people or 250 kg good for used access between island small in area tour with depth shallow base. The resistance of the boat's hull when operating plays an important role in knowing the power required by the boat. This is very important in designing a hull. Therefore, in design This will be done in numerical simulation using Computational Fluid Dynamics (CFD) to know how much power is required by the boat with a number of variation speeds. Design simulation moreover formerly created in Autodesk Inventor software, then design that has been designed will be simulated using the Ansys Fluent CFD application program. The data variables used in simulation numeric using varying speed limits namely 20 knots, 16 knots, 12 knots, 8 knots, and 4 knots, as well as condition rate flow is turbulent, wall side and top is symmetry, and the part the design that will be simulated is part hull the boat that sank in the water. The result of simulation numeric boat 250 kg capacity indicates a number of pressure and velocity contours of part hull as well as obtained Power highest at a speed of 20 knots 13938.511 Watts.
Effect of Changing Point Angle and Helix Angle Values of Drill Bit on Bone Drilling Simulation Eko Wahyu Saputra; Mochammad Resha
Journal of Applied Science, Engineering and Technology Vol. 4 No. 2 (2024): December 2024
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v4i2.69

Abstract

Abstract: Orthopedic surgery treats disorders of the bones and soft tissues, especially in cases of accidental fractures. One method of fracture healing is to place plates and bolts in the bone. However, the drilling process for plate installation can cause an increase in temperature around the drilling area, which risks causing necrosis in the bone. This study aims to examine the effect of drill bit design on the temperature generated during bone drilling. Modifications to the point angle, helix angle of the drill bit can reduce the temperature during drilling. The results of this study suggest that optimizing the drill bit design can reduce the risk of necrosis and improve drilling efficiency, which can accelerate the healing process of broken bones. Keywords: Orthopedic surgery, bone fracture, drilling temperature, drill bit design, necrosis.
Activation of Natural Zeolite Mixture and Coal Flyash Using Microwave as Air Filter for the Improvement of Gasoline Four-Stroke Motorcycle Engine Acceleration Risano, A Yudi Eka; Wardono, Herry; Renardy, B Niko; Susila, M Dyan; Sugiri, Agus; Haviz, Muhammad
Journal of Applied Science, Engineering and Technology Vol. 4 No. 1 (2024): June 2024
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v4i1.70

Abstract

Combustion is a chemical process between fuel and oxygen utilizing heat. Ambient air contains a variety of gases such as nitrogen, oxygen, and other gases, causing incomplete combustion in the combustion chamber of a 4-stroke petrol engine. The use of artificial air filters with zeolite-flyash composition activated by microwave can adsorb the air that enters the combustion chamber. So that it can improve the quality of combustion. Zeolite is a mineral that is found in limestone mountainous areas, while coal flyash is material from coal combustion at PLTU. Both of these materials have the ability to adsorb molecular sized particles such as nitrogen, CO and water vapor in the air, so the use of both materials is able to produce air with rich oxygen. The performance of the 4-stroke petrol engine is influenced by a decrease in fuel consumption, able to increase acceleration, and reduce exhaust emissions containing CO and HC. To find out the effect of the use of activated zeolite-flyash filters on engine performance, an acceleration test of 0-60 kph was performed. Filter being activated by Microwave with 80% power, 6 minutes activation time, and density (variation in the number of pellets in the filter) 50%, 75%, 100%, and use the Z0: F100, Z25: F75, Z50: F50, Z75: F25, Z100: F0. The best filter is the composition of Z100:F0 with a compactness of 50% able to increase acceleration by 7.17%, followed by filter with composition of Z25:F75 with a compactness of 50% able to increase acceleration by 4,04%.
Design and Analysis of a Ten-Passenger Electric Aircraft Named Djinn Mulyanto, Taufiq; K Musyahada; F Carakapurwa; F Jatmiko; C Puspaningtyas; F Hanafi; Huda, Zulmiftah; Hamdani, Fadil
Journal of Applied Science, Engineering and Technology Vol. 4 No. 2 (2024): December 2024
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v4i2.72

Abstract

As aircraft industries contribute more than 12% of the carbon emission globally, the urgency to develop a more sustainable and reliable source of energy to power aircrafts has become greater. Regarding that concern, an electric-powered aircraft is proposed to become the solution for the search of green technology. An electric aircraft has been proven to be capable of reducing carbon emission and sound emission. Despite of the advantages, the use of electric aircraft is still very scarce since there are a lot of considerable issues such as low energy density power sources, reliability problems, and the lack of design references. As a contribution for the development process, an electric aircraft by the name of “Djinn” has been designed, in hope that this aircraft can be an addition to the references for future endeavors. The methods used for designing the aircraft is similar as the methods used for developing conventional aircrafts, with slightly modified approximation and assumptions.
Effect of Variation of Quenching Process Cooling Media on Hardness and Microstructure of AISI 1020 Steel Subjected to The Pack Carburizing Process Using Graphite and Eggshell Carbon Media Zulhanif, Zulhanif; Supriadi, Harnowo; Prihastomo, Sigiet; Hanif, Muhammad; Ummah, Khairul
Journal of Applied Science, Engineering and Technology Vol. 4 No. 1 (2024): June 2024
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v4i1.73

Abstract

AISI 1020 steel is a low carbon steel which has a low selling price compared to medium carbon steel, high carbon steel, and alloy steel. This material is used as a construction material. in general, it is widely used and applied to machine components and construction components such as gears and shafts with relatively small loads. The purpose of this research is to increase the value of hardness. The pack carburizing process is carried out using graphite carbon media and egg shells at a temperature of 850 ºC. This process can increase the hardness of a material. The highest hardness value was obtained with the brine cooling medium of 457,111 BHN, then the water-cooling medium of 319,345 BHN, and finally the oil cooling medium of 248,204 BHN.

Page 4 of 5 | Total Record : 46

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