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All Journal International Journal of Applied Mathematics, Sciences, and Technology for National Defense
Jofim Yordaniel Napitupulu
Indonesia Defense University
Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Mathematics Physics

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Ultrasonic sensor system for detection of the objects position in two-dimensional plane Adhi Kusumadjati; Jofim Yordaniel Napitupulu; Roni Setiawan; Andrew Imada Samosir; Korhan Cengiz
International Journal of Applied Mathematics, Sciences, and Technology for National Defense Vol. 1 No. 1 (2023): International Journal of Applied Mathematics, Sciences, and Technology for Nati
Publisher : FoundAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/app.sci.def.v1i1.168

Abstract

Ultrasonic sensors are usually used to measure the distance to the object in front of it. It can be used to measure object distances accurately at a detection angle of 15 degrees to the sensor's normal plane and can be carried out up to a maximum distance of 4 m. Three ultrasonic sensors arrange in a triangular configuration can be used to determine the position of objects within the detection area formed by the three sensors. The sensors are positioned and the coverage angle is limited so that detection between sensors in the formation does not overlap or interfere with each other. In addition, using the position data for each unit of time, it is possible to find out the direction of movement of the object. Based on the above concepts, microcontrollers, data acquisition systems, and data processing systems can be used to measure the position and orientation of an object's movement in real time.
Simulation of calculation of combat vehicle fuel efficiency by reducing vehicle weight using aluminum material Jofim Yordaniel Napitupulu; Riri Murniati; Adhi Kusumadjati; Agung Hirawan; Mochamad Ibnu Alwan; Ramandasoavina Blanchard
International Journal of Applied Mathematics, Sciences, and Technology for National Defense Vol. 2 No. 1 (2024): International Journal of Applied Mathematics, Sciences, and Technology for Nati
Publisher : FoundAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/app.sci.def.v2i1.336

Abstract

In the contemporary landscape, combat vehicles are tasked with meeting multifaceted demands, ranging from fortified defense capabilities to enhanced operational versatility and lethal efficacy. At the crux of these requirements lies the pivotal challenge of managing vehicular weight, a parameter that profoundly impacts endurance, agility, and speed. Extensive research endeavors have shed light on aluminum as a compelling solution to mitigate this weight burden while ensuring the requisite durability in combat vehicles. Through the utilization of MATLAB simulations, this study endeavors to elucidate the correlation between mass reduction and fuel efficiency, culminating in the creation of a comparative graph. The findings of this research make a significant contribution by demonstrating that a 15 percent reduction in vehicle mass, equivalent to 324 kilograms through the substitution of conventional materials with aluminum, yields substantial fuel savings amounting to 13.36 percent, or 1.3 liters. Such insights underscore the pivotal role of material selection in optimizing fuel efficiency in combat vehicle design
Co-Authors Adhi Kusumadjati Agung Hirawan Andrew Imada Samosir Korhan Cengiz Mochamad Ibnu Alwan Ramandasoavina Blanchard Riri Murniati Roni Setiawan