.... positive pitch angle wind velocity pitch angle different wind velocity variation tip-speed ratio darrieus-type turbine pitch variation rotation turbine torque coefficient renewable energy torque wind energy efficiency power coefficient hiraki coefficient darrieus turbine low-speed wind...

... ABSTRACT In this paper, a modified PZIII model by considering the impact of principal stress rotation for the wave(current)-induced soil response in a sandy seabed is cited. Unlike the previous works, the proposed model considers the effect of PSR by treating it generating the plastic strain...

.... In the case of combined external pressure and bending, the corresponding critical loads and buckling mechanisms are shown to be dependent on the loading paths. The values of the critical external pressure are decreased with the decrease in the applied rotations, showing that the resistance to buckling...

... loads, i.e. the wind, the wave and other external loads. As the offshore wind turbine is a kind of dynamic-sensitive structure, dynamic loads including the wind turbulences, waves, rotational frequency of rotor (1P) and the blade passing frequency (3P for 3 bladed turbine), need to be considered...

... are to verify flow mode, to calculate a hydrodynamic power loss, to find out an influence of waves. Water ring arises about the pontoon during rotation. Power loss is proportional to second power of rotational velocity. The ring can drift to outside because of water acceleration and aside due to waves. KEY...

... Euler's angles, the angle of a cross sectional radius relative to the principal normal of the centroidal line, and the angle rotated from any artificial unstrained position. The relative merits of each of the three means are presented. Finally, the cross sectional deformation is described by a radial...

... rotor. A rotor w~th a large unbalanced mass wh~ch is appl~ed an osc~llat~ng mot~on, can be kept in rotat~on like a hula-hoop. A power generator is connected to the unbalanced rotor by an over dr~ve gear. In th~s paper, to clarify the fundamental character~st~cs of the new wave-energy converter s~mple...