Article

Article title WAVE GLIDER AS ELEMENT OF GLOBAL MARINE INFORMATION&MEASUREMENT SYSTEM
Authors I.V. Kozhemyakin, Yu.P. Potekhin, K.V. Rоzhdestvensky, V.A. Ryzhov
Section SECTION II. MARINE ROBOTICS
Month, Year 01, 2015 @en
Index UDC 551.46.077:529.584
DOI
Abstract Considered in this paper are some results of research conducted at SMTU in the field of creation of a special type of autonomous unmanned vehicle – wave glider. A brief review is presented of some known developments of marine technical objects propelled with use of wave energy. The actuality is justified for the development of the wave glider as a key element of a global marine information & measurement system of dual use. A mathematical model is considered, describing behavior of a wave glider in waves for different design solutions of the wave energy converting devices. The input parameters for the simulation are: characteristics of the wave; wave glider surface modulus characteristics; characteristics of the cable connecting surface and under-water modulus; characteristics of the underwater modulus, comprising a bearing structure with a system of oscillating wings. Wherein the wings may have elastic links in the angular and vertical degree of freedom. Numerical method for the determination of the hydrodynamic characteristics of this multicomponent dynamic system is offered. Solution of the problem is considered in the framework of the linear unsteady wing theory and the linear theory of ship pitching. As a result, the developed model allows to solve important practical problems of determining hydrodynamic characteristics of the wave glider for the following design schemes: "active" type device with automatic control system; "passive" type device with elastic elements; "passive" type device without elastic elements (with angular and vertical degrees of freedom); device with the rigidly fixed wing on the surface modulus. A numerical method is proposed for determination of hydrodynamic characteristics of multi-component dynamic system under consideration. Analysis is presented of some computed results, illustrating influence of various design parameters upon hydrodynamic properties of wave glider. Practical recommendations are given toward design of a prototype of a corresponding marine robotized vehicle.

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Keywords Global marine information & measurement system; wave glider; ocean energy conversion; oscillating wing; modeling of hydrodynamic characteristics; prototype of a marine robotized vehicle.
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