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All Journal JMES The International Journal of Mechanical Engineering and Sciences
Aida Annisa Amin Daman
Institut Teknologi Sepuluh Nopember
Energy Materials Science & Nanotechnology Mechanical Engineering

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Analysis of the Electromagnetic Vibration Absorber (EMVA) Mechanism Placement in the MDoF System towards Vibration Reduction and Generated Electrical Energy Wiwiek Hendrowati; Aida Annisa Amin Daman; Nugraha Merdekawan
JMES: The International Journal of Mechanical Engineering and Sciences Vol 7 No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v7i1.15519

Abstract

This research was conducted to determine the effect of the position of Electromagnetic Vibration Absorber (EMVA) to reduce the vibration of main system and to generate the energy. This article reports the results of a simulation and experimental study on the main system, which was excited by external force and the resulting vibration was reduced with an EMVA. The design of EMVA is in laboratory scale. The main system consists of a flat plate as a main mass and four springs, which are subjected to an excitation force that comes from the DC motor. The results show that both the simulation approach and experiment correspond well. The reduction of main system’s vibration is found to be affected by the position of EMVA. The maximum reduction in translation, rolling, and pitching direction occur at different position, which are at point 7 for translation and at point 1 for rolling and pitching. Meanwhile, the highest power generation occurs when the EMVA is at point 1.
Analysis of a Single Vertical Pendulum Mechanism on the Pontoon-Boat as a Wave Energy Harvester Aida Annisa Amin Daman; Wiwiek Hendrowati; Harus Laksana Guntur
JMES: The International Journal of Mechanical Engineering and Sciences Vol 2 No 2 (2018)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v2i2.6395

Abstract

The aims of this study are to model the wave energy harvester device using a single pendulum on a pontoon called Single Vertical Pendulum Mechanism (SVPM) and analyze the voltage generated by the mechanism. The simulation method was conducted in order to provide the power generated by SVPM. The SVPM’s dimension was designed on a laboratory scale and the wave amplitude was adjusted by the amplitude on the laboratory pool. The mechanism model uses wave energy as the excitation force of the pendulum. The pendulum oscillates and drives the transmission gear which transmits the force to the generator. The generator produces electrical energy. The variation used in the simulation was the mass of the pendulum, the length of the pendulum’s arm, and the wave amplitude. The maximum power that can be generated by SVPM was 5,735 Watt occurred when the arrangement of SVPM was using the pendulum mass of 0,75 kg and the pendulum length of 0,2 m. The parameter that most affect the generated power of SVPM was the wave amplitude.
Co-Authors Harus Laksana Guntur Nugraha Merdekawan Wiwiek Hendrowati