Wave Energy Extraction: Exploring the Potential of the Pendulum and Pulse Motors
DOI:
https://doi.org/10.70567/mc.v41i14.76Keywords:
wave energy, physical pendulum, non-linear dynamics, pulse motorsAbstract
This research explores the application of pulse motors to control a multi-mass pendulum, or N-pendulum, under parametric forcing that models marine waves. The N-pendulum, a more practical alternative to the simple pendulum for wave-driven electrical generation, exhibits non-linear dynamics with stationary behaviour heavily influenced by initial conditions. A pair of pulse motors, symmetrically positioned with respect to the pendulum’s rest position and modeled using finite elements methods, generate a useful torque even from rest, altering the rotational basins of attraction. The study focuses on how the pulse motors change these basins under different forcing conditions, with the aim of increasing the range of initial conditions leading to steady-state rotations.
References
Butikov E.I. The rigid pendulum - an antique but evergreen physical model. European Journal of Physics, 20:429, 1999. ISSN 0143-0807. https://doi.org/10.1088/0143-0807/20/6/308
Clifford M.J. y Bishop S.R. Rotating periodic orbits of the parametrically excited pendulum. Physics Letters A, 201:191-196, 1995. ISSN 0375-9601. https://doi.org/10.1016/0375-9601(95)00255-2
Falnes J. A review of wave-energy extraction. Marine Structures, 20:185-201, 2007. ISSN0951-8339. https://doi.org/10.1016/j.marstruc.2007.09.001
Garira W. y Bishop S.R. Rotating solutions of the parametrically excited pendulum. Journal of Sound and Vibration, 263:233-239, 2003. ISSN 0022-460X. https://doi.org/10.1016/S0022-460X(02)01435-9
Horton B., Wiercigroch M., y Xu X. Transient tumbling chaos and damping identification for parametric pendulum. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 366:767-784, 2007. ISSN 1364503X. https://doi.org/10.1098/rsta.2007.2126
Kraftmakher Y. Experiments with a magnetically controlled pendulum. European Journal of Physics, 28:1007, 2007. ISSN 0143-0807. https://doi.org/10.1088/0143-0807/28/5/023
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