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All Journal Jurnal Ilmiah Informatika Komputer Jurnal Ilmiah Teknologi dan Rekayasa Jurnal Teknologi Jurnal Ilmiah KOMPUTASI Briliant: Jurnal Riset dan Konseptual Journal of Energy, Mechanical, Material and Manufacturing Engineering Jurnal Teknik dan Science (JTS) Journal of Novel Engineering Science and Technology Jurnal Polimesin
Mohamad Yamin
Universitas Gunadarma
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : Journal of Novel Engineering Science and Technology

 1 
CFD Analysis of the Eccentricity Ratio on Journal Bearing due to Differences in Lubrication Type Vivi Failawati; Mohamad Yamin; Sri Poernomosari; Amar Ratnakar Naik
Journal of Novel Engineering Science and Technology Vol. 1 No. 02 (2022): Journal of Novel Engineering Science and Technology
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (762.303 KB) | DOI: 10.56741/jnest.v1i02.111

Abstract

Lubrication on journal bearings plays a vital role in reducing metal-to-metal friction, separates the reliable components. Often there is a decrease in lubrication conditions, which will cause failure or a change in roughness to the inner surface. Direct metal-to-metal contact between the bearing's inner and journal surface will gradually deform the bearing. In diesel engine applications, lubrication is aiming to minimize failure or damage to the journal bearing. This paper investigates a 3D CAD model of a journal bearing using the ANSYS Computational Fluid Dynamics software. The effect of eccentricity ratio is analyzed for semisynthetic lubricating oil R3 10W-30 and synthetic oil. The result shows that synthetic oil has a considerable pressure compared to R3 10W-30, especially at a higher eccentricity ratio.
Rapid Preliminary Sailplane Design using Regression Method Mohamad Yamin; Ahmad Fakhri Giyats
Journal of Novel Engineering Science and Technology Vol. 1 No. 02 (2022): Journal of Novel Engineering Science and Technology
Publisher : The Indonesian Institute of Science and Technology Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1192.121 KB) | DOI: 10.56741/jnest.v1i02.143

Abstract

The article describes a new method for the preliminary design of a Sailplane based on technical data from similar Sailplanes, enabling quick design using regression methods. The authors chose FX 66-168 as the main wing airfoil for a new sailplane with a gross weight of 602 kg with a flight parameter Angle-of-Attack (AoA) 00 in minimum velocity of 49.5 m/s to cruise. As an example, we illustrate the proposed regression method. Our method allows for improving the effective preliminary design of the sailplane. The effectiveness evaluation validation of the new model is conducted with the numerical calculation using XFLR Opensource software. The research results improve design techniques and could be used as a manual for an aircraft designer.
Co-Authors Ahmad Fakhri Giyats Amar Ratnakar Naik Bayu Ramadhan Danny Setiawan Muhamad Dewangga Muhammad Zidan Alfasha Sandya Gilang Samudra Satria Wijayandaru Silvia Casmadi Sri Poernomo Sari Sri Poernomosari Vivi Failawati Zaid Al Kahfi Ramadhan Zaid Al Kahfi Ramadhan