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All Journal JMES The International Journal of Mechanical Engineering and Sciences
Dika Andini Suryandari
Department of Mechanical Engineering, Institut Teknologi Sepuluh Nopember, Sukolilo Surabaya, Indonesia
Energy Materials Science & Nanotechnology Mechanical Engineering

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Numerical Analysis of Translational Vibration Reduction Response on Drilling Process due to Additional Mass-Rubber Dynamic Vibration Absorber (MR-DVA) Dika Andini Suryandari; Wiwiek Hendrowati
The International Journal of Mechanical Engineering and Sciences Vol 6, No 2 (2022)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v6i2.13441

Abstract

Machining is an important part of the industry, one of which is the drilling process. The drilling process is utilized in the making of holes in a material. When the drill-bit touches the material, it causes a vibration that can affect the quality of the hole surface. Therefore, the analysis of the addition of MR-DVA with a natural frequency of 1,630.2 Hz on a workpiece Aluminium Alloy 7075-T6 as the main system is conducted. Simulations were carried out in the natural frequency range of 1,675 Hz – 1,680 Hz with various workpiece dimension ratios of 2⁄5, 3⁄5, 4⁄5, and 5⁄5, along with the different ratios of an MR-DVA placement between the clamp and hole of 1⁄4, 2⁄4, and 3⁄4. Based on the conducted simulation, it has been found that the MR-DVA with a mass ratio of 1⁄20 can dampen well. The largest reduction for a workpiece dimension ratio of 2⁄5 with an MR-DVA placement ratio of 1⁄4 is 92%. In contrast, the smallest reduction for a workpiece dimension ratio of 3⁄5 is 7.2%. These are because the damping area and the increase in the workpiece's dimensions ratio are inverses, affecting the workpiece area that touches the clamp.
Co-Authors Wiwiek Hendrowati