Analysis and Selection of Deployment Methods for a Wave Glider System

Abstract

A wave glider is a novel unmanned marine vehicle which can convert marine energy into kinetic energy. In practice, it is crucial for the wave glider system to deploy into the ocean environment efficiently and safely. Hence, the present work establishes the wave glider motion equations to analyze the deployment method. Firstly, the wave glider model is simplified in the vertical plane and the cable model is defined as mass nodes connected with a massless spring. Then, two typical deployment methods (Method 1 and Method 2) are proposed based on the multibody dynamic method, and the numerical simulation model is established to investigate the kinematic performance of two deployment methods. Lastly, the dynamic characteristic analysis is conducted to select the determined deployment method. We explain the practical advantages of Method 1, which would provide the reference for the deployment method selection.

Modeling analysis and experiment for energy system of ocean energy driven unmanned marine vehicle: The Yulang II case study

“…Chen et al (2018) constructed a dynamical model of a wave glider and derived the equation between the vertical liquid velocity and the forward velocity of the system. Wang et al (2020) conducted numerical simulations to analyze the system velocity and forces for different deployment methods of wave gliders. Ramachandrudu et al (2010) designed and analyzed an octagonal linear generator, and through simulation, verified the feasibility of wave energy harvesters as a USV hybrid power.…”