Analysis of a Single Vertical Pendulum Mechanism on the Pontoon-Boat as a Wave Energy Harvester

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.

Analysis of the Electromagnetic Vibration Absorber (EMVA) Mechanism Placement in the MDoF System towards Vibration Reduction and Generated Electrical Energy

“…The theory of delayed resonator is used in vibration absorbers to enhance energy harvesting [9]. The application of a transmission box is used to transfer the motion of ocean waves into the motion of the generator, which provides electrical energy [10]. However, there are still some mechanical losses in the transmission box.…”