MOTION RESPONSE STUDY OF INNER ECCENTRIC PENDULUM WAVE ENERGY CONVERTER
The energy conversion mechanisms of the inner eccentric pendulum wave energy converter under wave excitation is still unclear,thereby impacting the converter's output efficiency and stability.Utilizing the principles of potential flow theory,the Morrison equation,and the Lagrange-Euler equation,this study establishes a three-degree-of-freedom dynamic model for the inner eccentric pendulum wave energy converter.The validity of the model is verified by comparing the theoretical calculation data with the experimental data of the pool.Based on the established dynamic model,the effects of wave excitation condition,damping coefficient,mass of eccentric pendulum and installation height of eccentric pendulum on the motion response of the device are analyzed.Additionally,a comprehensive analysis is performed to explore the chaotic behavior in the energy conversion process.This research clarifies the relationship between the chaotic state of the device and the output power,and reveals the energy conversion mechanism.