Vibration Metamaterial For Vibration Absorber

Hamdan, Mohamad Syafiq (2019) Vibration Metamaterial For Vibration Absorber. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

Text (24 Pages) Vibration Metamaterial For Vibration Absorber.pdf - Submitted Version Download (310kB)

Abstract

This project is about metamaterial vibration absorber where the designed vibration absorber being attached on cantilever beam model in a repetitive arrangement to create a metamaterial-like structure. The project is started by designing the shape of vibration absorber using Solidwork 2015 software which the design must consist of spring and mass system. After that, ANSYS software is used to determine the natural frequency and maximum principle stress on the designed vibration absorber for the lab testing requirement. There are four design of vibration absorbers and one design is chosen to be fabricated and tested on the cantilever beam model to study and analyse the ability of it in reducing vibration amplitude of the cantilever beam model that been excited random force. The chosen vibration absorber design will be fabricated for a few identical pieces using CubePro 3D printer machine with ABS plastic as its material. The 3D printed vibration absorber is added one by one on the cantilever beam model and the ability of the vibration absorber in reducing vibration amplitude been monitored as the number of vibration absorber applied on it increases. The data of vibration amplitude been collected using accelerometer and Data Physics which the data will be interpreted through a computer in graphical diagram which is amplitude versus frequency. It is found that, as the number of applied vibration absorber on the cantilever beam model increases, the resonance peaks will decrease and the distance between the resonance peaks will become further. Furthermore, to obtain a more positive result, the vibration absorbers should be applied on both side of the cantilever beam to get a better vibration suppression result.

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