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A.A.A. Triadi
Mataram University
Automotive Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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Efek gaya tekan pembuatan hibrid komposit berpenguat SiCw/Al2O3 dengan wetting agent Mg terhadap sifat fisik dan mekanik K. Suarsana; N.P.G. Suardana; D.N.K.P. Negara; P.W. Sunu; A.A.A. Triadi
Dinamika Teknik Mesin Vol 11, No 1 (2021): Dinamika Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.243 KB) | DOI: 10.29303/dtm.v11i1.368

Abstract

The growing demand for metal-based materials in the manufacturing industry has prompted the development of composite materials that have better mechanical and physical properties than single materials. The development be done in order to obtain new materials that have better properties. The research was conducted using a powder metallurgy process, by varying the compressive force and holding time in order to determine the effect of the combination of compression and holding time on the mechanical and physical properties of composites. The variations in the compressive force are 20, 25, and 30 kN, with a holding time of 15, 30 and 45 minutes for each force. Research includes tests of density, porosity, hardness, wear and Scanning Electronic Microscope. The results of the density test showed that the highest density value was 2.982 gr/cm3 and the lowest porosity value was 13.074% at a compressive force of 25 kN, holding time of 45 minutes. The results of the highest hardness value 53.455  kg/mm2 at 30 kN, 45 minutes and the lowest wear value 2.15455E-05 gr at a pressure of 20 kN, 15 minutes. Based on the test results, the characteristics of the density are inversely proportional to the porosity, while the hardness and wear are influenced by the length of holding time in the moldof a composite using aluminum as a matrix needs too.
Uji performansi motor listrik sebagai penggerak kendaraan listrik M. Mara; I.G.N.K. Yudhyadi; I.G.A.K.C. Adhi; P.D. Setyawan; A.A.A. Triadi
Dinamika Teknik Mesin Vol 13, No 1 (2023): Dinamika Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v13i1.607

Abstract

Currently, public cars on the road generally have been using fossil fuels as main energy supply which is non-renewable and harmful for the environment as well as its availability has nearly finish. This require new invention that can be obtained through efforts and innovations. The main choice is electrical energy. Furthermore, Indonesia as world's largest nickel producers can be potentially develop its own batteries company to supports the development of electric cars. Thus, near future the electric cars will replace conventional ones. In this study, a thorough investigation on the performance of the electric motor as main driver for the car has been carefully investigated. The results shows that the speed, torque, mechanical power and efficiency of the electric motor are proportional to the total loads. For mechanical power at 15 kg of loading, the power reaches 2263.4 watts for electric motors and 2272.9 watts for motors with a differential. Meanwhile, the efficiency achieved with 5 kg loading were 90.5% and 80.2% for without and with a differential respectively. Morever, obtaining more comprehensive design, is necessary to carry out further study to make the prototype of the electric car of Faculty of Engineering, University of Mataram be ready to marketplace.
Co-Authors D.N.K.P. Negara I Ketut Suarsana I.G.A.K.C. Adhi I.G.N.K. Yudhyadi M. Mara NPG Suardana P.D. Setyawan P.W. Sunu