Design and Modeling of a 2-Dofs Wave Energy Converting Device for Underwater Vehicles

Abstract:

Based on the principle of 2-dofs inertia pendulum, a wave energy converting device (WECD) to realize the energy self-supply for underwater vehicles was proposed in the paper, which can absorb movements or forces from two directions perpendicularly. The key part is the one-way device, which converts the irregular oscillation into one-way rotation. Therefore, the energy obtained is stored in torsional coil spring to drive a generator. The dynamic equation of the simplified model was presented on the basis of Lagrange equation, and the variations of angles in 2-dofs were obtained through an example by Runge-Kutta (RK), and the parameters and qualifications for the device optimization were also analyzed by comparison. The analysis provides necessary information for dynamic performance analysis, optimal design, efficiency analysis and control of WECD.

• Periodical: Applied Mechanics and Materials (Volumes 44-47)
• Pages: 1957-1961
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.44-47.1957
• Online since: December 2010
• Authors: Xiao Ming Wang, Jian Zhong Shang, Zi Rong Luo, Jun Hong Yang
• Keywords: 2-Dofs Inertia Pendulum, One-Way Device, Underwater Vehicle, WECD

References

[1] JIANG X.S. ，FENG X.S. ，WANG L.T.: Underwater Vehicles (Liaoning Tech Publications, China 2000).

[2] YU Z.: The development of ocean wave power generating techniques. Ocean Engineering Vol. 11 (1993), pp.86-93.

[3] Webb D. C., Simonetti P.J., Jones C.P.: SLOCUM: an underwater glider propelled by environmental energy. IEEE J. of Oceanic Engineering Vol. 26 (2001), pp.447-452.

DOI: 10.1109/48.972077

[4] ZHANG Y, DONG Z.L.: Research on the wave energy system based on inertial pendulum. Acta of Energiae Solaris Sinica Vol. 28 (2007), pp.394-400.

[5] QIU D. H: Wave theory and engineering application (High Education Publications, China 1985).